TY - CHAP A1 - Davin, Till A1 - Herder, Jens ED - Weier, Martin ED - Bues, Matthias ED - Wechner, Reto T1 - Real-Time Relighting of Video Streams for Augmented Virtuality Scenes T2 - GI VR / AR Workshop. Gesellschaft für Informatik e.V. KW - Virtual (TV) Studio Y1 - 2021 U6 - https://doi.org/10.18420/vrar2021_6 PB - Gesellschaft für Informatik e.V. (GI) CY - Bonn ER - TY - GEN A1 - Jarosch, Monika A1 - Herder, Jens A1 - Langmann, Mathias T1 - Entwicklung einer AR-Applikation zur kosteneffektiven volumetrischen Erfassung von Baugruben T2 - gis.Science N2 - Die volumetrische Erfassung von Aushüben auf Baustellen ist ein kostenrelevanter Faktor und wird auch heute im täglichen Baustellenbetrieb oft noch in manueller Detailarbeit durchgeführt. Kostengünstige Sensoren zur Tiefenerfassung ermöglichen die halbautomatische Erfassung von Baugruben. Augmented Reality (AR) kann für diesen Prozess das nötige Feedback liefern. Vorgestellt wird ein Prototyp, bestehend aus einem Tablet mit integrierter Kamera und einem Lidar-Scanner. Es wird die Erfassung des Volumens bezüglich Nutzbarkeit und Genauigkeit mit Einsatz von AR getestet und evaluiert. Zur Bestimmung des Volumens wird unter Verwendung von Strahlen mit Unterstützung einer Grafik-Engine ein Algorithmus entwickelt. Der Algorithmus ist robust gegen nicht vollständig geschlossene Volumen. Die Bedienung, Überprüfung und Visualisierung findet durch praktischen Einsatz von AR statt. KW - Volumenbestimmung KW - Augmented Reality KW - Baustelle KW - LIDAR KW - VSVR Y1 - 2022 UR - https://gispoint.de/artikelarchiv/gis/2022/gisscience-ausgabe-22022/7427-entwicklung-einer-ar-applikation-zur-kosteneffektiven-volumetrischen-erfassung-von-baugruben.html SN - 2698-4571 N1 - Der Artikel ist als PDF beim Verlag herunterladbar. Dieses wurde nach 3 Monaten freigeschaltet. Vorher war ein Abonnement notwendig. VL - 2022 IS - 2 SP - 75 EP - 83 ER - TY - CHAP A1 - Geiger, Christian A1 - Stocklein, Jorg A1 - Berssenbrugge, Jan A1 - Paelke, Volker T1 - Mixed Reality Design of Control Strategies T2 - Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B, 30.08.2009 - 02.09.2009, San Diego Y1 - 2009 UR - https://asmedigitalcollection.asme.org/IDETC-CIE/proceedings/IDETC-CIE2009/48999/1621/335536 SN - 978-0-7918-4899-9 U6 - https://doi.org/10.1115/DETC2009-87350 SP - 1621 EP - 1628 PB - ASMEDC ER - TY - CHAP A1 - Reckter, Holger A1 - Geiger, Christian A1 - Singer, Jurgen A1 - Streuber, Stephan T1 - Tech-note: Iterative design and test of a multimodal experience T2 - 2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette Y1 - 2009 UR - http://ieeexplore.ieee.org/document/4811213/ SN - 978-1-4244-3965-2 U6 - https://doi.org/10.1109/3DUI.2009.4811213 SP - 99 EP - 102 PB - IEEE ER - TY - CHAP A1 - Geiger, Christian A1 - Reckter, Holger A1 - Paschke, David A1 - Schulz, Florian T1 - Poster: Evolution of a Theremin-Based 3D-Interface for Music Synthesis T2 - 2008 IEEE Symposium on 3D User Interfaces, 08.03.2008 - 09.03.2008, Reno KW - Poster Y1 - 2008 UR - https://doi.org/10.1109/3DUI.2008.4476618 SN - 978-1-4244-2047-6 U6 - https://doi.org/10.1109/3DUI.2008.4476618 SP - 163 EP - 164 PB - IEEE ER - TY - CHAP A1 - Stocklein, Jorg A1 - Geiger, Christian A1 - Paelke, Volker T1 - Mixed reality in the loop — design process for interactive mechatronical systems T2 - 2010 IEEE Virtual Reality Conference (VR), 20.03.2010 - 24.03.2010, Waltham Y1 - 2010 UR - http://ieeexplore.ieee.org/document/5444755/ SN - 978-1-4244-6237-7 U6 - https://doi.org/10.1109/VR.2010.5444755 SP - 303 EP - 304 PB - IEEE ER - TY - CHAP A1 - Marinos, Dionysios A1 - Geiger, Christian A1 - Schwirten, Tobias A1 - Göbel, Sebastian ED - Krüger, Antonio ED - Schöning, Johannes ED - Wigdor, Daniel ED - Haller, Michael T1 - Multitouch navigation in zoomable user interfaces for large diagrams T2 - ACM International Conference on Interactive Tabletops and Surfaces - ITS '10, 07.11.2010 - 10.11.2010, Saarbrücken Y1 - 2010 UR - http://portal.acm.org/citation.cfm?doid=1936652 SN - 9781450303996 U6 - https://doi.org/10.1145/1936652.1936713 PB - ACM Press CY - New York ER - TY - CHAP A1 - Göbel, Sebastian A1 - Geiger, Christian A1 - Heinze, Christin A1 - Marinos, Dionysios ED - Santucci, Giuseppe T1 - Creating a virtual archery experience T2 - Proceedings of the International Conference on Advanced Visual Interfaces - AVI '10, 26.05.2010 - 28.05.2010, ROma Y1 - 2010 UR - http://portal.acm.org/citation.cfm?doid=1842993 SN - 9781450300766 U6 - https://doi.org/10.1145/1842993.1843056 PB - ACM Press CY - New York ER - TY - CHAP A1 - Owetschkin, Konstantin A1 - Meyer, Laurid A1 - Geiger, Christian A1 - Drochtert, Daniel ED - Billinghurst, Mark ED - Karlsson, Börje T1 - Mobile virtual archery T2 - SIGGRAPH Asia 2013 Symposium on Mobile Graphics and Interactive Applications on - SA '13, 19.11.2013 - 22.11.2013, Hong Kong Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2543651 SN - 9781450326339 U6 - https://doi.org/10.1145/2543651.2543684 PB - ACM Press CY - New York ER - TY - CHAP A1 - Marinos, Dionysios A1 - Wöldecke, Björn A1 - Geiger, Christian ED - Richir, Simon T1 - Prototyping natural interactions in virtual studio environments by demonstration T2 - Proceedings of the Virtual Reality International Conference: Laval Virtual, 20.03.2013-22.03.2013, Laval Y1 - 2013 UR - https://dl.acm.org/doi/proceedings/10.1145/2466816 SN - 9781450318754 U6 - https://doi.org/10.1145/2466816.2466819 SP - 1 EP - 8 PB - ACM CY - New York ER - TY - CHAP A1 - Marinos, Dionysios A1 - Woldecke, Bjorn A1 - Geiger, Christian T1 - Poster: Prototyping natural interactions in virtual studio environments by demonstrationby - Combining spatial mapping with gesture following T2 - 2013 IEEE Symposium on 3D User Interfaces (3DUI), 16.03.2013 - 17.03.2013, Orlando KW - Poster Y1 - 2013 UR - http://ieeexplore.ieee.org/document/6550224/ SN - 978-1-4673-6098-2 U6 - https://doi.org/10.1109/3DUI.2013.6550224 SP - 153 EP - 154 PB - IEEE ER - TY - CHAP A1 - Geiger, Christian A1 - Thiele, Simon A1 - Meyer, Laurid A1 - Meyer, Stefan A1 - Hören, Lutz A1 - Drochtert, Daniel ED - Reidsma, Dennis ED - Katayose, Haruhiro ED - Nijholt, Anton T1 - Goin’ Goblins - Iterative Design of an Entertaining Archery Experience T2 - Advances in Computer Entertainment. 10th International Conference, ACE 2013, Boekelo, The Netherlands, November 12-15, 2013. Proceedings Y1 - 2013 SN - 978-3-319-03160-6 U6 - https://doi.org/10.1007/978-3-319-03161-3_20 VL - 8253 SP - 284 EP - 295 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Geiger, Christian A1 - Hogen, Michael A1 - Hornig, Jörn A1 - Schaar, Michael ED - Butz, Andreas ED - Greenberg, Saul ED - Bakker, Saskia ED - Loke, Lian ED - de Luca, Alexander T1 - Datenreise: : digital bits made tangible T2 - Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2540930 SN - 9781450326353 U6 - https://doi.org/10.1145/2540930.2540945 SP - 283 EP - 284 PB - ACM Press CY - New York ER - TY - CHAP A1 - Feitsch, Jochen A1 - Strobel, Marco A1 - Meyer, Stefan A1 - Geiger, Christian ED - Butz, Andreas ED - Greenberg, Saul ED - Bakker, Saskia ED - Loke, Lian ED - de Luca, Alexander T1 - Tangible and body-related interaction techniques for a singing voice synthesis installation T2 - Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2540930 SN - 9781450326353 U6 - https://doi.org/10.1145/2540930.2540962 SP - 157 EP - 164 PB - ACM Press CY - New York ER - TY - CHAP A1 - Feitsch, Jochen A1 - Strobel, Marco A1 - Geiger, Christian ED - Reidsma, Dennis ED - Katayose, Haruhiro ED - Nijholt, Anton T1 - Singing Like a Tenor without a Real Voice T2 - Advances in Computer Entertainment. 10th International Conference, ACE 2013, Boekelo, The Netherlands, November 12-15, 2013. Proceedings Y1 - 2013 SN - 978-3-319-03160-6 U6 - https://doi.org/10.1007/978-3-319-03161-3_18 VL - 8253 SP - 258 EP - 269 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Feitsch, Jochen A1 - Strobel, Marco A1 - Geiger, Christian ED - Schmidt, Albrecht ED - Bulling, Andreas ED - Holz, Christian T1 - Caruso: augmenting users with a tenor's voice T2 - Proceedings of the 4th Augmented Human International Conference on - AH '13, 07.03.2013 - 08.03.2013, Stuttgart Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2459236 SN - 9781450319041 U6 - https://doi.org/10.1145/2459236.2459280 SP - 239 EP - 240 PB - ACM Press CY - New York ER - TY - CHAP A1 - Dziwis, Damian T. A1 - Vormann, Anja A1 - Wiethölter, Felix A1 - Geiger, Christian A1 - Marinos, Dionysios ED - Butz, Andreas ED - Greenberg, Saul ED - Bakker, Saskia ED - Loke, Lian ED - de Luca, Alexander T1 - The conductor's philosophy T2 - Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2540930 SN - 9781450326353 U6 - https://doi.org/10.1145/2540930.2555208 SP - 343 EP - 344 PB - ACM Press CY - New York ER - TY - CHAP A1 - Drochtert, Daniel A1 - Owetschkin, Konstantin A1 - Meyer, Laurid A1 - Geiger, Christian ED - Billinghurst, Mark ED - Karlsson, Börje T1 - Demonstration of mobile virtual archery T2 - SIGGRAPH Asia 2013 Symposium on Mobile Graphics and Interactive Applications on - SA '13, 19.11.2013 - 22.11.2013, Hong Kong Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2543651 SN - 9781450326339 U6 - https://doi.org/10.1145/2543651.2543658 PB - ACM Press CY - New York ER - TY - CHAP A1 - Andrukaniec, Edward A1 - Franken, Carmen A1 - Kirchhof, Daniel A1 - Kraus, Tobias A1 - Schöndorff, Fabian A1 - Geiger, Christian ED - Reidsma, Dennis ED - Katayose, Haruhiro ED - Nijholt, Anton T1 - OUTLIVE – An Augmented Reality Multi-user Board Game Played with a Mobile Device T2 - Advances in Computer Entertainment. 10th International Conference, ACE 2013, Boekelo, The Netherlands, November 12-15, 2013. Proceedings Y1 - 2013 SN - 978-3-319-03160-6 U6 - https://doi.org/10.1007/978-3-319-03161-3_38 VL - 8253 SP - 501 EP - 504 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Geiger, Christian A1 - Paelke, Volker A1 - Gansen, Ivonne ED - Hutchison, David ED - Kanade, Takeo ED - Kittler, Josef ED - Kleinberg, Jon M. ED - Mattern, Friedemann ED - Mitchell, John C. ED - Naor, Moni ED - Nierstrasz, Oscar ED - Pandu Rangan, C. ED - Steffen, Bernhard ED - Sudan, Madhu ED - Terzopoulos, Demetri ED - Tygar, Dough ED - Vardi, Moshe Y. ED - Weikum, Gerhard ED - Göbel, Stefan ED - Malkewitz, Rainer ED - Iurgel, Ido T1 - Navigating by Following Stories T2 - Technologies for Interactive Digital Storytelling and Entertainment, Third International Conference, TIDSE 2006, Darmstadt, Germany, December 4-6, 2006, Proceedings Y1 - 2006 UR - https://doi.org/10.1007/11944577_32 SN - 978-3-540-49934-3 U6 - https://doi.org/10.1007/11944577_32 SP - 324 EP - 333 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Geiger, Christian A1 - Stoecklein, Joerg A1 - Klompmaker, Florian A1 - Fritze, Robin ED - Inakage, Masa ED - Lee, Newton ED - Tscheligi, Manfred ED - Bernhaupt, Regina ED - Natkin, Stephane T1 - Development of an augmented reality game by extendinga 3D authoring system T2 - Proceedings of the international conference on Advances in computer entertainment technology - ACE '07, 13.06.2007 - 15.06.2007, Salzburg Y1 - 2007 UR - http://portal.acm.org/citation.cfm?doid=1255047 SN - 9781595936400 U6 - https://doi.org/10.1145/1255047.1255099 PB - ACM Press CY - New York ER - TY - CHAP A1 - Marinos, Dionysios A1 - Geiger, Christian T1 - An immersive multiuser music generation interface T2 - Proceedings of the International Conference on Advances in Computer Enterntainment Technology - ACE '09, 29.10.2009 - 31.10.2009, Athens Y1 - 2009 UR - http://portal.acm.org/citation.cfm?doid=1690388 SN - 9781605588643 U6 - https://doi.org/10.1145/1690388.1690486 PB - ACM Press CY - New York ER - TY - CHAP A1 - Geiger, Christian A1 - Rattay, Oliver T1 - TubeMouse - A Two-Handed Input Device for Flexible Objects T2 - 2008 IEEE Symposium on 3D User Interfaces, 08.03.2008 - 09.03.2008, Reno Y1 - 2008 UR - http://ieeexplore.ieee.org/document/4476587/ SN - 978-1-4244-2047-6 U6 - https://doi.org/10.1109/3DUI.2008.4476587 SP - 27 EP - 34 PB - IEEE ER - TY - CHAP A1 - Geiger, Christian A1 - Fritze, Robin A1 - Lehmann, Anke A1 - Stöcklein, Jörg ED - Schmidt, Albrecht ED - Gellersen, Hans ED - van den Hoven, Elise ED - Mazalek, Ali ED - Holleis, Paul ED - Villar, Nicolas T1 - HYUI: a visual framework for prototyping hybrid user interfaces T2 - Proceedings of the 2nd international conference on Tangible and embedded interaction - TEI '08, 18.02.2008 - 20.02.2008, Bonn Y1 - 2008 UR - http://portal.acm.org/citation.cfm?doid=1347390 SN - 9781605580043 U6 - https://doi.org/10.1145/1347390.1347406 PB - ACM Press CY - New York ER - TY - CHAP A1 - Stöcklein, Jörg A1 - Geiger, Christian A1 - Paelke, Volker A1 - Pogscheba, Patrick ED - Shumaker, Randall T1 - A Design Method for Next Generation User Interfaces Inspired by the Mixed Reality Continuum T2 - Virtual and Mixed Reality, Third International Conference, VMR 2009, Held as Part of HCI International 2009, San Diego, CA USA, July, 19-24, 2009, Proceedings Y1 - 2009 UR - https://doi.org/10.1007/978-3-642-02771-0_28 SN - 978-3-642-02770-3 U6 - https://doi.org/10.1007/978-3-642-02771-0_28 SP - 244 EP - 253 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Stocklein, Jorg A1 - Geiger, Christian A1 - Paelke, Volker A1 - Pogscheba, Patrick T1 - Poster: MVCE - a design pattern to guide the development of next generation user interfaces T2 - 2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette KW - Poster Y1 - 2009 UR - http://ieeexplore.ieee.org/document/4811232/ SN - 978-1-4244-3965-2 U6 - https://doi.org/10.1109/3DUI.2009.4811232 SP - 153 EP - 154 PB - IEEE ER - TY - CHAP A1 - Schulz, Florian A1 - Geiger, Christian A1 - Reckter, Holger T1 - ANTracks: generative mobile music composition T2 - Proceedings of the International Conference on Advances in Computer Enterntainment Technology - ACE '09, 29.10.2009 - 31.10.2009, Athens Y1 - 2009 UR - http://portal.acm.org/citation.cfm?doid=1690388 SN - 9781605588643 U6 - https://doi.org/10.1145/1690388.1690442 PB - ACM Press CY - New York ER - TY - CHAP A1 - Lehmann, Anke A1 - Geiger, Christian A1 - Woldecke, Bjorn A1 - Stocklein, Jorg T1 - Poster: Design and evaluation of 3D content with wind output T2 - 2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette KW - Poster Y1 - 2009 UR - http://ieeexplore.ieee.org/document/4811231/ SN - 978-1-4244-3965-2 U6 - https://doi.org/10.1109/3DUI.2009.4811231 SP - 151 EP - 152 PB - IEEE ER - TY - CHAP A1 - Möser, Annika A1 - Reufer, Thomas A1 - Geiger, Christian ED - Romão, Teresa ED - Correia, Nuno ED - Inami, Masahiko ED - Kato, Hirokasu ED - Prada, Rui ED - Terada, Tsutomu ED - Dias, Eduardo ED - Chambel, Teresa T1 - Multitouch and pen interaction for 3D configuration of virtual yachts at trade fairs T2 - Proceedings of the 8th International Conference on Advances in Computer Entertainment Technology - ACE '11, Lisbon, 08.11.2011 - 11.11.2011 Y1 - 2011 UR - http://dl.acm.org/citation.cfm?doid=2071423 SN - 9781450308274 U6 - https://doi.org/10.1145/2071423.2071514 PB - ACM Press CY - New York ER - TY - CHAP A1 - Geiger, Christian A1 - Reckter, Holger A1 - Dumitrescu, Roman A1 - Kahl, Sascha A1 - Berssenbrügge, Jan ED - Jacko, Julie A. T1 - A Zoomable User Interface for Presenting Hierarchical Diagrams on Large Screens T2 - Human-Computer Interaction. Novel Interaction Methods and Techniques, 13th International Conference, HCI International 2009, San Diego, CA, USA, July 19-24, 2009, Proceedings, Part II Y1 - 2009 SN - 978-3-642-02576-1 U6 - https://doi.org/10.1007/978-3-642-02577-8_87 VL - 5611 SP - 791 EP - 800 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Dörries, Gundula A1 - Geiger, Christian A1 - Lehmann, Anke A1 - Wegstein, Andrea ED - Villar, Nicolas ED - Izadi, Shahram ED - Fraser, Mike ED - Benford, Steve T1 - HorseIO - virtual riding lessons with a low-cost tangible horse interface T2 - Proceedings of the 3rd International Conference on Tangible and Embedded Interaction - TEI '09, 16.02.2009 - 18.02.2009, Cambridge Y1 - 2009 UR - http://portal.acm.org/citation.cfm?doid=1517664 SN - 9781605584935 U6 - https://doi.org/10.1145/1517664.1517708 PB - ACM Press CY - New York ER - TY - CHAP A1 - Stöcklein, Jörg A1 - Pogscheba, Patrick A1 - Geiger, Christian A1 - Paelke, Volker ED - Gain, James ED - Marais, Patrick T1 - MiReAS: a mixed reality software framework for iterative prototyping of control strategies for an indoor airship T2 - Proceedings of the 7th International Conference on Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa - AFRIGRAPH '10 , 21.06.2010 - 23.06.2010, Franschhoek Y1 - 2010 UR - http://portal.acm.org/citation.cfm?doid=1811158 SN - 9781450301183 U6 - https://doi.org/10.1145/1811158.1811164 PB - ACM Press CY - New York ER - TY - CHAP A1 - Marinos, Dionysios A1 - Wöldecke, Björn A1 - Geiger, Christian A1 - Schwirten, Tobias ED - Romão, Teresa ED - Correia, Nuno ED - Inami, Masahiko ED - Kato, Hirokasu ED - Prada, Rui ED - Terada, Tsutomu ED - Dias, Eduardo ED - Chambel, Teresa T1 - Design of a touchless multipoint musical interface in a virtual studio environment T2 - Proceedings of the 8th International Conference on Advances in Computer Entertainment Technology - ACE '11, 08.11.2011 - 11.11.2011, Lisbon Y1 - 2011 UR - http://dl.acm.org/citation.cfm?doid=2071423 SN - 9781450308274 U6 - https://doi.org/10.1145/2071423.2071464 PB - ACM Press CY - New York ER - TY - CHAP A1 - Kierepka, Oliver A1 - Brosda, Constantin A1 - Geiger, Christian ED - Herrlich, Marc ED - Malaka, Rainer ED - Masuch, Maic T1 - The Soundtrack Of Your Life T2 - Entertainment Computing - ICEC 2012, 11th, September 26-29, 2012, Bremen, Proceedings Y1 - 2012 SN - 978-3-642-33541-9 U6 - https://doi.org/10.1007/978-3-642-33542-6_47 SP - 437 EP - 440 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Thiele, Simon A1 - Meyer, Laurid A1 - Geiger, Christian A1 - Drochtert, Daniel A1 - Woldecke, Bjorn T1 - Virtual archery with tangible interaction T2 - 2013 IEEE Symposium on 3D User Interfaces (3DUI), 16.03.2013 - 17.03.201, Orlando Y1 - 2013 UR - http://ieeexplore.ieee.org/document/6550199/ SN - 978-1-4673-6098-2 U6 - https://doi.org/10.1109/3DUI.2013.6550199 SP - 67 EP - 70 PB - IEEE ER - TY - CHAP A1 - Woldecke, Bjorn A1 - Marinos, Dionysios A1 - Geiger, Christian T1 - Poster: MagicLensVS - Towards a flexible framework for quick setup of visual feedback in a virtual studio T2 - 2013 IEEE Symposium on 3D User Interfaces (3DUI), 16.03.2013 - 17.03.2013, Orlando KW - Poster Y1 - 2013 UR - http://ieeexplore.ieee.org/document/6550239/ SN - 978-1-4673-6098-2 U6 - https://doi.org/10.1109/3DUI.2013.6550239 SP - 183 EP - 184 PB - IEEE ER - TY - CHAP A1 - Wöldecke, Björn A1 - Marinos, Dionysios A1 - Geiger, Christian ED - Gehring, Sven ED - Boring, Sebastian ED - Quigley, Aaron T1 - Flexible Registration of Multiple Displays T2 - Proceedings of The International Symposium on Pervasive Displays, Copenhagen, 03.06.2014-04.06.2014 Y1 - 2014 UR - https://dl.acm.org/doi/proceedings/10.1145/2611009 SN - 9781450329521 U6 - https://doi.org/10.1145/2611009.2611030 SP - 86 EP - 91 PB - ACM CY - New York ER - TY - CHAP A1 - Mayer, Christian A1 - Pogscheba, Patrick A1 - Marinos, Dionysios A1 - Wöldecke, Björn A1 - Geiger, Christian ED - Chisik, Yoram ED - Geiger, Christian ED - Hasegawa, Shoichi T1 - An audio-visual music installation with dichotomous user interactions T2 - Proceedings of the 11th Conference on Advances in Computer Entertainment Technology, Funchal, 11.11.2014-14.11.2014 Y1 - 2014 UR - https://dl.acm.org/doi/proceedings/10.1145/2663806 SN - 9781450329453 U6 - https://doi.org/10.1145/2663806.2663842 SP - 1 EP - 6 PB - ACM CY - New York ER - TY - CHAP A1 - Huldtgren, Alina A1 - Mayer, Christian A1 - Kierepka, Oliver A1 - Geiger, Christian ED - Chisik, Yoram T1 - Towards serendipitous urban encounters with SoundtrackOfYourLife T2 - Proceedings of the 11th Conference on Advances in Computer Entertainment Technology, Funchal, 11.11.2014-14.11.2014 Y1 - 2014 UR - https://dl.acm.org/doi/proceedings/10.1145/2663806 SN - 9781450329453 U6 - https://doi.org/10.1145/2663806.2663836 SP - 1 EP - 8 PB - ACM CY - New York ER - TY - CHAP A1 - Marinos, Dionysios A1 - Geiger, Christian ED - Grimshaw, Mark ED - Walther-Hansen, Mads T1 - Facilitating the creation of natural interactions for live audiovisual performances T2 - Proceedings of the 9th Audio Mostly on A Conference on Interaction With Sound - AM '14, Aalborg, 01.10.2014 - 03.10.2014 Y1 - 2014 UR - http://dl.acm.org/citation.cfm?doid=2636879 SN - 9781450330329 U6 - https://doi.org/10.1145/2636879.2636893 SP - 1 EP - 6 PB - ACM Press CY - New York ER - TY - CHAP A1 - Huldtgren, Alina A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence Map - Insights to Design for People with Dementia from a Tangible Prototype T2 - Proceedings of the 1st International Conference on Information and Communication Technologies for Ageing Well and e-Health, Lisbon, 20.05.2015 - 22.05.2015 Y1 - 2015 UR - http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0005442702330242 SN - 978-989-758-102-1 U6 - https://doi.org/10.5220/0005442702330242 SP - 233 EP - 242 PB - SCITEPRESS - Science and and Technology Publications ER - TY - CHAP A1 - Huldtgren, Alina A1 - Vormann, Anja A1 - Geiger, Christian ED - Helfert, Markus ED - Holzinger, Andreas ED - Ziefle, Martina ED - Fred, Ana ED - O'Donoghue, John ED - Röcker, Carsten T1 - Mapping Memories for People with Dementia T2 - Information and Communication Technologies for Ageing Well and e-Health Y1 - 2015 SN - 978-3-319-27694-6 U6 - https://doi.org/10.1007/978-3-319-27695-3_10 SP - 165 EP - 184 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Huldtgren, Alina A1 - Mertl, Fabian A1 - Vormann, Anja A1 - Geiger, Christian ED - Abascal, Julio ED - Barbosa, Simone ED - Fetter, Mirko ED - Gross, Tom ED - Palanque, Philippe ED - Winckler, Marco T1 - Probing the Potential of Multimedia Artefacts to Support Communication of People with Dementia T2 - Human-Computer Interaction – INTERACT 2015 Y1 - 2015 SN - 978-3-319-22697-2 U6 - https://doi.org/10.1007/978-3-319-22698-9_6 SP - 71 EP - 79 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Drochtert, Daniel A1 - Geiger, Christian T1 - Collaborative magic lens graph exploration T2 - SIGGRAPH Asia 2015 Mobile Graphics and Interactive Applications, Kobe, 02.11.2015-06.11.2015 Y1 - 2015 UR - https://dl.acm.org/doi/proceedings/10.1145/2818427 SN - 9781450339285 U6 - https://doi.org/10.1145/2818427.2818465 SP - 1 EP - 3 PB - ACM CY - New York ER - TY - CHAP A1 - Werfel, Fabian A1 - Wiche, Roman A1 - Feitsch, Jochen A1 - Geiger, Christian ED - Seigneur, Jean-Marc ED - Hernandez-Munoz, Jose M. ED - McCullagh, Paul ED - Schmidt, Albrecht ED - Terada, Tsutomu ED - Woo, Woontack ED - Mistry, Pranav T1 - Empathizing Audiovisual Sense Impairments T2 - Proceedings of the 7th Augmented Human International Conference 2016, Geneva, 25.02.2016-27.02.2016 Y1 - 2016 UR - https://dl.acm.org/doi/proceedings/10.1145/2875194 SN - 9781450336802 U6 - https://doi.org/10.1145/2875194.2875226 SP - 1 EP - 8 PB - ACM CY - New York ER - TY - CHAP A1 - Drochtert, D. A1 - Geiger, Christian A1 - Hogen, M. A1 - Huldtgren, Alina A1 - Köse, O. A1 - Wiche, R. A1 - Loss, L. ED - Gehring, Sven ED - Krüger, Antonio ED - Alt, Florian ED - Taylor, Nick T1 - Public Brewing: a Media Façade with a Mixed Reality Interface T2 - Proceedings of the 4th International Symposium on Pervasive Displays, 10.06.2015-12.06.2015, Saarbrücken Y1 - 2015 UR - https://dl.acm.org/doi/proceedings/10.1145/2757710 SN - 9781450336086 U6 - https://doi.org/10.1145/2757710.2757736 SP - 69 EP - 75 PB - ACM CY - New York ER - TY - CHAP A1 - Huldtgren, Alina A1 - Mertl, Fabian A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence of People with Dementia Mediated by a Tangible Multimedia Book T2 - Proceedings of the International Conference on Information and Communication Technologies for Ageing Well and e-Health,, Rome, 21.04.2016 - 22.04.2016 Y1 - 2016 UR - http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0005758801910201 SN - 978-989-758-180-9 U6 - https://doi.org/10.5220/0005758801910201 SP - 191 EP - 201 PB - SCITEPRESS - Science and and Technology Publications ER - TY - CHAP A1 - Zimmer, Christian A1 - Drochtert, Daniel A1 - Geiger, Christian A1 - Brink, Michael A1 - Mütze, Rolf ED - Billinghurst, Mark ED - Rungjiratananon, Witawat T1 - Mobile previsualization using augmented reality T2 - SIGGRAPH Asia 2017 Mobile Graphics & Interactive Applications on - SA '17, Bangkok, 27.11.2017 - 30.11.2017 Y1 - 2017 UR - http://dl.acm.org/citation.cfm?doid=3132787 SN - 9781450354103 U6 - https://doi.org/10.1145/3132787.3132805 SP - 1 EP - 5 PB - ACM Press CY - New York ER - TY - CHAP A1 - Zimmer, Christian A1 - Bertram, Michael A1 - Büntig, Fabian A1 - Drochtert, Daniel A1 - Geiger, Christian ED - Billinghurst, Mark ED - Rungjiratananon, Witawat T1 - Mobile augmented reality illustrations that entertain and inform with the hololens T2 - SIGGRAPH Asia 2017 Mobile Graphics & Interactive Applications on - SA '17, Bangkok, 27.11.2017 - 30.11.2017 Y1 - 2017 UR - http://dl.acm.org/citation.cfm?doid=3132787 SN - 9781450354103 U6 - https://doi.org/10.1145/3132787.3140546 PB - ACM Press CY - New York ER - TY - CHAP A1 - Zimmer, Christian A1 - Bertram, Michael A1 - Büntig, Fabian A1 - Drochtert, Daniel A1 - Geiger, Christian ED - Billinghurst, Mark ED - Rungjiratananon, Witawat T1 - Mobile augmented reality illustrations that entertain and inform T2 - SIGGRAPH Asia 2017 Mobile Graphics & Interactive Applications on - SA '17, Bangkok, 27.11.2017 - 30.11.2017 Y1 - 2017 UR - http://dl.acm.org/citation.cfm?doid=3132787 SN - 9781450354103 U6 - https://doi.org/10.1145/3132787.3132804 SP - 1 EP - 7 PB - ACM Press CY - New York ER - TY - JOUR A1 - Huldtgren, Alina A1 - Mertl, Fabian A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence of People With Dementia Mediated by Multimedia Artifacts JF - Interacting with Computers Y1 - 2017 U6 - https://doi.org/10.1093/iwc/iwx005 VL - 29 IS - 5 SP - 679 EP - 696 PB - Oxford University Press ER - TY - CHAP A1 - Ladwig, Philipp A1 - Geiger, Christian ED - Auer, Michael E. ED - Langmann, Reinhard T1 - A Literature Review on Collaboration in Mixed Reality T2 - Smart Industry & Smart Education. Proceedings of the 15th International Conference on Remote Engineering and Virtual Instrumentation Y1 - 2019 UR - https://doi.org/10.1007/978-3-319-95678-7_65 SN - 978-3-319-95677-0 U6 - https://doi.org/10.1007/978-3-319-95678-7_65 VL - Lecture Notes in Networks and Systems SP - 591 EP - 600 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Druzetic, Ivana A1 - Büntig, Fabian A1 - Vogel, Christoph A1 - Treskunov, Anastasia A1 - Bertram, Michael A1 - Geiger, Christian ED - Abdennadher, Slim ED - Alt, Florian T1 - Photo Sprayer: A VR Application for Digital Art Creation T2 - Proceedings of the 17th International Conference on Mobile and Ubiquitous Multimedia, MUM 2018: 17th International Conference on Mobile and Ubiquitous Multimedia, Cairo, 25.11.2018-28.11.2018 Y1 - 2018 UR - https://dl.acm.org/doi/proceedings/10.1145/3282894 SN - 9781450365949 U6 - https://doi.org/10.1145/3282894.3289747 SP - 537 EP - 543 PB - ACM CY - New York ER - TY - CHAP A1 - Tiator, Marcel A1 - Fischer, Ben A1 - Gerhardt, Laurin A1 - Nowottnik, David A1 - Preu, Hendrik A1 - Geiger, Christian T1 - Cliffhanger-VR T2 - 2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Reutlingen, 18.03.2018 - 22.03.2018 Y1 - 2018 SN - 978-1-5386-3365-6 U6 - https://doi.org/10.1109/VR.2018.8446506 SP - 1 EP - 2 PB - IEEE ER - TY - CHAP A1 - Tiator, Marcel A1 - Büntig, Fabian A1 - Geiger, Christian T1 - Dynamic Movement Monitoring - Algorithms for Real Time Exercise Movement Feedback T2 - Proceedings of the 4th International Conference on Information and Communication Technologies for Ageing Well and e-Health, Funchal, 22.03.2018 - 23.03.2018 Y1 - 2018 UR - http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0006735001840191 SN - 978-989-758-299-8 U6 - https://doi.org/10.5220/0006735001840191 SP - 184 EP - 191 PB - SCITEPRESS - Science and Technology Publications ER - TY - CHAP A1 - Tiator, Marcel A1 - Geiger, Christian A1 - Dewitz, Bastian A1 - Fischer, Ben A1 - Gerhardt, Laurin A1 - Nowottnik, David A1 - Preu, Hendrik ED - Lukosch, Stephan ED - Kunze, Kai T1 - Venga!: climbing in mixed reality T2 - Proceedings of the First Superhuman Sports Design Challenge on First International Symposium on Amplifying Capabilities and Competing in Mixed Realities - SHS '18, Delft, 02.07.2018 - 05.07.2018 Y1 - 2018 UR - http://dl.acm.org/citation.cfm?doid=3210299 SN - 9781450364072 U6 - https://doi.org/10.1145/3210299.3210308 SP - 1 EP - 8 PB - ACM Press CY - New York ER - TY - CHAP A1 - Zimmer, Christian A1 - Ratz, Nanette A1 - Bertram, Michael A1 - Geiger, Christian T1 - War Children: Using AR in a Documentary Context T2 - 2018 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct), Munich, 16.10.2018 - 20.10.2018 Y1 - 2018 UR - https://doi.org/10.1109/ISMAR-Adjunct.2018.00112 SN - 978-1-5386-7592-2 U6 - https://doi.org/10.1109/ISMAR-Adjunct.2018.00112 SP - 390 EP - 394 PB - IEEE ER - TY - CHAP A1 - Tiator, Marcel A1 - Köse, Okan A1 - Wiche, Roman A1 - Geiger, Christian A1 - Dorn, Fritz ED - Chisik, Yoram ED - Holopainen, Jussi ED - Khaled, Rilla ED - Luis Silva, José ED - Alexandra Silva, Paula T1 - Trampoline Jumping with a Head-Mounted Display in Virtual Reality Entertainment T2 - Intelligent Technologies for Interactive Entertainment: INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings Y1 - 2018 UR - https://doi.org/10.1007/978-3-319-73062-2_8 SN - 978-3-319-73061-5 U6 - https://doi.org/10.1007/978-3-319-73062-2_8 SP - 105 EP - 119 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Treskunov, Anastasia A1 - Vogel, Christoph A1 - Wróblewska, Marta A1 - Bertram, Michael A1 - Büntig, Fabian A1 - Geiger, Christian ED - Chisik, Yoram ED - Holopainen, Jussi ED - Khaled, Rilla ED - Luis Silva, José ED - Alexandra Silva, Paula T1 - G:RASS – Experiencing a City Through an Artist’s Eyes T2 - Intelligent Technologies for Interactive Entertainment: INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings Y1 - 2018 UR - https://doi.org/10.1007/978-3-319-73062-2_12 SN - 978-3-319-73061-5 U6 - https://doi.org/10.1007/978-3-319-73062-2_12 SP - 142 EP - 145 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Dewitz, Bastian A1 - Wiche, Roman A1 - Geiger, Christian A1 - Steinicke, Frank A1 - Feitsch, Jochen ED - Chisik, Yoram ED - Holopainen, Jussi ED - Khaled, Rilla ED - Luis Silva, José ED - Alexandra Silva, Paula T1 - AR Sound Sandbox: A Playful Interface for Musical and Artistic Expression T2 - Intelligent Technologies for Interactive Entertainment. 9th International Conference, INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings Y1 - 2018 UR - https://doi.org/10.1007/978-3-319-73062-2_5 SN - 978-3-319-73061-5 U6 - https://doi.org/10.1007/978-3-319-73062-2_5 SP - 59 EP - 76 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Dewitz, Bastian A1 - Ladwig, Philipp A1 - Steinicke, Frank A1 - Geiger, Christian T1 - Classification of Beyond-Reality Interaction Techniques in Spatial Human-Computer Interaction T2 - Proceedings of the Symposium on Spatial User Interaction, SUI '18: Symposium on Spatial User Interaction, Berlin, 13.10.2018-14.10.2018 Y1 - 2018 UR - https://dl.acm.org/doi/proceedings/10.1145/3267782 SN - 9781450357081 U6 - https://doi.org/10.1145/3267782.3274680 PB - ACM CY - New York ER - TY - CHAP A1 - Treskunov, Anastasia A1 - Gerhardt, Emil A1 - Nowottnik, David A1 - Fischer, Ben A1 - Gerhardt, Laurin A1 - Säger, Mitja A1 - Geiger, Christian ED - Alt, Florian ED - Bulling, Andreas ED - Döring, Tanja T1 - ICAROSmuIti - A VR Test Environment for the Development of Multimodal and Multi-User Interaction Concepts T2 - Proceedings of Mensch und Computer 2019, MuC'19: Mensch-und-Computer, Hamburg, 08.09.2019-11.09.2019 Y1 - 2019 UR - https://dl.acm.org/doi/proceedings/10.1145/3340764 SN - 9781450371988 U6 - https://doi.org/10.1145/3340764.3345379 SP - 909 EP - 911 PB - ACM CY - New York ER - TY - CHAP A1 - Tiator, Marcel A1 - Kerkmann, Anna Maria A1 - Geiger, Christian A1 - Grimm, Paul T1 - Using Semantic Segmentation to Assist the Creation of Interactive VR Applications T2 - 2020 IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR), Utrecht, 14.12.2020 - 18.12.2020 Y1 - 2020 UR - https://doi.org/10.1109/AIVR50618.2020.00011 SN - 978-1-7281-7463-1 U6 - https://doi.org/10.1109/AIVR50618.2020.00011 SP - 1 EP - 9 PB - IEEE ER - TY - CHAP A1 - Ladwig, Philipp A1 - Pech, Alexander A1 - Dorner, Ralf A1 - Geiger, Christian T1 - Unmasking Communication Partners: A Low-Cost AI Solution for Digitally Removing Head-Mounted Displays in VR-Based Telepresence T2 - 2020 IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR), Utrecht, 14.12.2020 - 18.12.2020 KW - Mirevi Y1 - 2020 UR - https://doi.org/10.1109/AIVR50618.2020.00025 SN - 978-1-7281-7463-1 U6 - https://doi.org/10.1109/AIVR50618.2020.00025 SP - 82 EP - 90 PB - IEEE ER - TY - CHAP A1 - Ladwig, Philipp A1 - Evers, Kester A1 - Jansen, Eric J. A1 - Fischer, Ben A1 - Nowottnik, David A1 - Geiger, Christian T1 - MotionHub: Middleware for Unification of Multiple Body Tracking Systems T2 - Proceedings of the 7th International Conference on Movement and Computing: MOCO '20: 7th International Conference on Movement and Computing, Jersey City, 15.07.2020-17.07.2020 Y1 - 2020 UR - https://dl.acm.org/doi/proceedings/10.1145/3401956 SN - 9781450375054 U6 - https://doi.org/10.1145/3401956.3404185 SP - 1 EP - 8 PB - ACM CY - New York ER - TY - CHAP A1 - Triebus, Charlotte A1 - Druzetic, Ivana A1 - Dewitz, Bastian A1 - Huhn, Calvin A1 - Kretschel, Paul A1 - Geiger, Christian ED - Wimmer, Raphael ED - Kaltenbrunner, Martin ED - Murer, Martin ED - Wolf, Katrin ED - Oakley, Ian T1 - is a rose – A Performative Installation between the Tangible and the Digital T2 - Proceedings of the Fifteenth International Conference on Tangible, Embedded, and Embodied Interaction KW - Mirevi Y1 - 2021 UR - https://dl.acm.org/doi/proceedings/10.1145/3430524 SN - 9781450382137 U6 - https://doi.org/10.1145/3430524.3444640 SP - 1 EP - 4 PB - ACM CY - New York ER - TY - CHAP A1 - Herder, Jens A1 - Takeda, Shinpei A1 - Vermeegen, Kai A1 - Davin, Till A1 - Berners, Dominique A1 - Ryskeldiev, Bektur A1 - Zimmer, Christian A1 - Druzetic, Ivana A1 - Geiger, Christian T1 - Mixed Reality Art Experiments - Immersive Access to Collective Memories T2 - ISEA2019, Proceedings, 25th International Symposium on Electronic Art, Gwangju, South Korea, June 22-28, 2019 N2 - We report about several experiments on applying mixed reality technology in the context of accessing collective memories from atomic bombs, Holocaust and Second World War. We discuss the impact of Virtual Reality, Augmented Virtuality and Augmented Reality for specific memorial locations. We show how to use a virtual studio for demonstrating an augmented reality application for a specific location in a remote session within a video conference. Augmented Virtuality is used to recreate the local environment, thus providing a context and helping the participants recollect emotions related to a certain place. This technique demonstrates the advantages of using virtual (VR) and augmented (AR) reality environments for rapid prototyping and pitching project ideas in a live remote setting. KW - Mixed Reality KW - Augmented Reality KW - Augmented Virtuality KW - Rapid Prototyping KW - Video Conferencing Y1 - 2019 UR - http://www.isea-archives.org/docs/2019/ISEA2019_Proceedings.pdf SP - 334 EP - 341 PB - IESA CY - Gwangju ER - TY - CHAP A1 - Herder, Jens T1 - Interactive Content Creation with Virtual Set Environments T2 - Fourth International Conference on Human and Computer N2 - Digital broadcasting enables interactive \sc tv, which presents new challenges for interactive content creation. Besides the technology for streaming and viewing, tools and systems are under development that extend traditional \sc tv studios with virtual set environments. This presentation reviews current technology and describes the requirements for such systems. Interoperability over the production, streaming, and viewer levels requires open interfaces. As the technology allow more interaction, it becomes inherent difficult to control the quality of the viewers experience KW - VSVR KW - digital broadcasting Y1 - 2001 PB - University of Aizu CY - Aizu-Wakamatsu ER - TY - CHAP A1 - Herder, Jens T1 - Matching Light for Virtual Studio TV Productions T2 - 9th International Conference on Human and Computer N2 - High dynamic range environments maps based on still images or video streams are used for computer animation or interactive systems. The task of realistic light setup of scenes using captured environment maps might be eased as well as the visual quality improves. In this article, we discuss the light setting problem for virtual studio (tv) layout and system become more complex to handle this new feature of studio light capturing. The analysis of system requirements identifies the technical challenges. KW - VSVR KW - Animation KW - Virtual (TV) Studio Y1 - 2006 SP - 158 EP - 162 CY - Aizu-Wakamatsu ER - TY - GEN A1 - Herder, Jens T1 - Konzeption, Implementierung und Integration einer Komponente zur inkrementellen Bezeichner- und Operatoranalyse innerhalb des PSGs N2 - Der Programmier System Generator - PSG - des Fachgebiets Praktische Informatik in Darmstadt erzeugt aus einer Sprachdefinition eine sprachspezifische Programmierumgebung. Diese besteht u. a. aus einem Editor, welcher syntaktische und semantische Fehler von Programmfragmenten, die nicht vollständig sein müssen, erkennen kann. Dem Benutzer werden per Menü Fehlerkorrekturen angeboten. Neben der freien Texteingabe besteht die Möglichkeit, den Text nur mit Hilfe von Menüs zu verfeinern. Teil dieses Editors ist die Bezeichneranalyse. Sie dient als Hilfsmittel für den Benutzer, indem für jede Stelle eines Programmfragmentes die gültigen Bezeichner ausgegeben werden können. Die Kontextanalyse setzt die Berechnung auf den von der Bezeichneranalyse erzeugten Daten auf, um semantische Fehler zu erkennen. Die bis zu dieser Arbeit verwendete Bezeichneranalyse im PSG unterstützt nur einfache Sprachkonzepte (z. B. Fortran und Pascal). Die Gültigkeitskonzepte der Bezeichner von weiterentwickelten Sprachen (z. B. Modula-2, CHILL, Ada oder Pascal-XT) sind nicht vollständig modellierbar. Wir stellen ein neues Konzept zur Definition und Berechnung der Bezeichneranalyse vor, das alle uns bekannten Sprachen mit statischer Typbindung unterstützt. Hierfür haben wir die Sprache BIS - Bezeichneridentifikationssprache - definiert. Die Methode ist verwandt mid dem Zwischencode für geordnete Attributierte Grammatiken. Für jeden Knoten des Abstrakten Syntaxbaumes wird mit Hilfe von BIS ein Code für eine abstrakte Maschine, welche die Bezeichneranalyse durchführt, geschrieben. Im Gegensatz zu herkömlichen Methoden (verkettete Symboltabellen) wird für jeden Punkt innerhalb eines Programmes for der Anfrage durch den Benutzer oder der Kontextanalyse die Menge der gültigen Bezeichner berechnet. Die Kosten für eine Anfrage sind dadurch minimal. Diese abstrakte Maschine teilt sich in zwei unabhängige Maschinen auf, zum einen in die S-Maschine, die die speziellen Operationen der Bezeichneranalyse durchführt, und zum anderen in die G-Maschine, die den Datenfluss und die Auswertung steuert. Diese Aufteilung ermöglicht den Austausch der S-Maschine durch eine andere, welche neue Anwendungsgebiete erschliesst, z. B. die eines Praeprozessors. Die G-Maschine arbeitet inkrementell; es werden nur die Codeschablonen neu ausgewertet, deren geerbten Attribute sich geändert haben. Dazu müssen die Daten, die in einer Codeschablone hinein- und hinausfliessen, abgelegt werden. Dies ergibt bei grossen Programmfragmenten eine immense Rechenzeiteinsparung auf Kosten des Speicherplatzes. Die Funktionsweise wird an einer kleinen Beispielsprache demonstriert, die zu Pascal ähnlich ist. Diese besitzt Konstrukte zum Import und Export von Daten und Datentypen zwischen Programmfragmenten. Im Prototyp kann die inkrementelle Arbeitsweise abgeschaltet werden und ermöglicht einen guten Vergleich der Verfahren. T2 - Specification, Implementation and Integration of a Module for Incremental Identifier and Operator Analysis in the PSG (Programming System Generator) KW - Februar Y1 - 1992 CY - Darmstadt ER - TY - JOUR A1 - Hesse, Jan A1 - König, Rainer A1 - Logi, Filippo A1 - Herder, Jens T1 - A Prototype of an Interface Builder for the Common Lisp Interface Manager - CLIB JF - ACM Sigplan Notices N2 - The Common Lisp Interface Manager (CLIM) is used to develop graphical user interfaces for Lisp-basedapplications. With the prototype of the CLIM interface Builder (CLIB) the programmer can generate code for CLIM interactively. The developing process will be fast and less prone to errors. With this new tool, the interactive rapid prototyping reduces costs of a specification phase. Here we present the concept and first results of the prototype of CLIB. Y1 - 1993 U6 - https://doi.org/10.1145/163114.163116 VL - 28 IS - 8 SP - 19 EP - 28 PB - Forschungszentrum Informatik (FZI), Technical Expert Systems and Robotics ER - TY - JOUR A1 - Kunii, Tosiyasu L. A1 - Herder, Jens A1 - Myszkowski, Karol A1 - Okunev, Oleg A1 - Okuneva, Galina A1 - Ibusuki, Masumi T1 - Articulation Simulation for an Intelligent Dental Care System JF - Displays N2 - CAD/CAM techniques are used increasingly in dentistry for design and fabrication of teeth restorations. An important issue is preserving occlusal contacts of teeth after restoration. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surface, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming. Most existing computer systems ignore completely such an articulation check, or perform the check at the level of a tooth and its immediate neighbors. We present a new mathematical model and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is elimination of the use of mechanical articulators and manual adjustment in the process of designing dental restorations and articulation diagnostic. The mathematical model is based upon differential topological modeling of the jawbs considered as a mechanical system. The user interface exploits metaphors that are familiar to dentists from everyday practice. A new input device designed specifically for use with articulation simulation is proposed. Y1 - 1994 VL - 15 IS - 3 SP - 181 EP - 188 ER - TY - CHAP A1 - Myszkowski, Karol A1 - Okuneva, Galina A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi T1 - Visual Simulation of the Chewing Process for Dentistry T2 - Visualization & Modelling, International Conf., 5-7 December, 1995 N2 - CAD/CAM techniques are increasingly used in dentistry for the design and fabrication of teeth restorations. Important concerns are the correction of articulation problems that existed beforetreatment and the prevention of treatment-generated problems. These require interactive evaluation of the occlusal surfaces of teeth during mastication. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surfaces, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming and provide little visual information. We present new visual tools and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is visual representation of characteristics relevant to the chewing process. The simulation is based on the construction of distance maps, which are visual representations of the distributions of the distances of points in a tooth to the opposite jaw. We use rasterizing graphics hardware for fast calculation of the distance maps. Distance maps are used for collision detection and for the derivation of various characteristics showing the distribution of load on the teeth and the chewing capability of the teeth. Such characteristics can be calculated for particular positions of the jaws; cumulative characteristics are used to describe the properties of jaw movement. This information may be used for interactive design of the occlusal surfaces of restorations and for jaw articulation diagnosis. We also demonstrate elements of a user interface that exploit metaphors familiar to dentists from everyday practice. Y1 - 1995 CY - Leeds ER - TY - CHAP A1 - Herder, Jens A1 - Myszkowski, Karol A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi ED - Weghorst, Suzanne J. ED - Sieburg, Hans B. ED - Morgan, Karen S. T1 - A Virtual Reality Interface to an Intelligent Dental Care System T2 - Medicine Meets Virtual Reality 4 Y1 - 1996 SP - 17 EP - 20 PB - IOS Press CY - Amsterdam ER - TY - CHAP A1 - Myszkowski, Karol A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi T1 - Visualization and analysis of occlusion for human jaws using a "functionally generated path" T2 - IS&T/SPIE Symp. on Electronic Imaging, Visual Data Exploration and Analysis III N2 - Dynamic characteristics of occlusion during lower jaw motion are useful in the diagnosis of jaw articulation problems and in computer-aided design/manufacture of teeth restorations. The Functionally Generated Path (FGP), produced as a surface which envelops the actual occlusal surface of the moving opponent jaw, can be used for compact representation of dynamic occlusal relations. In traditional dentistry FGP is recorded as a bite impression in a patient’s mouth. We propose an efficient computerized technique for FGP reconstruction and validate it through implementation and testing. The distance maps between occlusal surfaces of jaws, calculated for multiple projection directions and accumulated for mandibular motion, provide information for FGP computation. Rasterizing graphics hardware is used for fast calculation of the distance maps. Real-world data are used: the scanned shape of teeth and the measured motion of the lower jaw. We show applications of FGP to analysis of the occlusion relations and occlusal surface design for restorations. Y1 - 1996 U6 - https://doi.org/10.1117/12.234684 SP - 360 EP - 367 PB - The International Society for Optical Engineering CY - San Jose ER - TY - CHAP A1 - Amano, Katsumi A1 - Matsushita, Fumio A1 - Yanagawa, Hirofumi A1 - Cohen, Michael A1 - Herder, Jens A1 - Koba, Yoshiharu A1 - Tohyama, Mikio T1 - The Pioneer sound field control system at the University of Aizu Multimedia Center T2 - RO-MAN '96 Tsukuba N2 - The PSFC, or Pioneer sound field control system, is a DSP-driven hemispherical 14-loudspeaker array, installed at the University of Aizu Multimedia Center. Collocated with a large screen rear-projection stereographic display the PSFC features realtime control of virtual room characteristics and direction of two separate sound channels, smoothly steering them around a configurable soundscape. The PSFC controls an entire sound field, including sound direction, virtual distance, and simulated environment (reverb level, room size and liveness) for each source. It can also configure a dry (DSP-less) switching matrix for direct directionalization. The PSFC speaker dome is about 14 m in diameter, allowing about twenty users at once to comfortably stand or sit near its sweet spot. KW - Acoustic reflection KW - Auditory displays KW - Control systems KW - Delay effects KW - Electronic mail KW - Large screen displays KW - Loudspeakers KW - Multimedia systems KW - Reverberation KW - Size control Y1 - 1996 SN - 0-7803-3253-9 U6 - https://doi.org/10.1109/ROMAN.1996.568887 SP - 495 EP - 499 PB - IEEE CY - Piscataway ER - TY - CHAP A1 - Herder, Jens A1 - Cohen, Michael T1 - Sound Spatialization Resource Management in Virtual Reality Environments T2 - ASVA’97 ‐- Int. Symp. on Simulation, Visualization and Auralization for Acoustic Research and Education N2 - In a virtual reality environment users are immersed in a scene with objects which might produce sound. The responsibility of a VR environment is to present these objects, but a system has only limited resources, including spatialization channels (mixels), MIDI/audio channels, and processing power. The sound spatialization resource manager controls sound resources and optimizes fidelity (presence) under given conditions. For that a priority scheme based on human psychophysical hearing is needed. Parameters for spatialization priorities include intensity calculated from volume and distance, orientation in the case of non-uniform radiation patterns, occluding objects, frequency spectrum (low frequencies are harder to localize), expected activity, and others. Objects which are spatially close together (depending on distance and direction) can be mixed. Sources that can not be spatialized can be treated as a single ambient sound source. Important for resource management is the resource assignment, i.e., minimizing swap operations, which makes it desirable to look-ahead and predict upcoming events in a scene. Prediction is achieved by monitoring objects’ speed and past evaluation values. Fidelity is contrasted for Zifferent kind of resource restrictions and optimal resource assignment based upon unlimited dynamic scene look-ahead. To give standard and comparable results, the VRML 2.0 specification is used as an application programmer interface. Applicability is demonstrated with a helical keyboard, a polyphonic MIDI stream driven animation including user interaction (user moves around, playing together with programmed notes). The developed sound spatialization resource manager gives improved spatialization fidelity under runtime constraints. Application programmers and virtual reality scene designers are freed from the burden of assigning and predicting the sound sources. Y1 - 1997 SP - 407 EP - 414 CY - Tokyo ER - TY - CHAP A1 - Myszkowski, Karol A1 - Okuneva, Galina A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi ED - Earnshaw, Rae A. ED - Huw, Jones ED - John, Vince T1 - Visual Simulation of the Chewing Process for Dentistry T2 - Visualization & Modeling N2 - CAD/CAM techniques are increasingly used in dentistry for the design and fabrication of teeth estorations. Important concerns are the correction of articulation problems that existed before treatment and the prevention of treatment-generated problems. These require interactive evaluation of the occlusal surfaces of teeth during mastication. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surfaces, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming and provide little visual information. We present new visual tools and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is visual representation of characteristics relevant to the chewing process. The simulation is based on the construction of distance maps, which are visual representations of the distributions of the distances of points in a tooth to the opposite jaw. We use rasterizing graphics hardware for fast calculation of the distance maps. Distance maps are used for collision detection and for the derivation of various characteristics showing the distribution of load on the teeth and the chewing capability of the teeth. Such characteristics can be calculated for particular positions of the jaws; cumulative characteristics are used to describe the properties of jaw movement. This information may be used for interactive design of the occlusal surfaces of restorations and for jaw articulation diagnosis. We also demonstrate elements of a user interface that exploit metaphors familiar to dentists from everyday practice. Y1 - 1997 SN - 0-12-227738-4 SP - 419 EP - 438 PB - Academic Press CY - London ER - TY - CHAP A1 - Schmitt, Lothar M. A1 - Herder, Jens A1 - Bhalla, Subhash ED - Gorayska, Barbara ED - Nehaniv, Chrystopher L. ED - Marsh, Jonathon P. T1 - Information Retrieval and Database Architecture for Conventional Japanese Character Dictionaries T2 - Proceedings, Second International Conference on Cognitive Technology N2 - The cycle of abstraction-reconstruction which occurs as a fundamental principle in the development of culture and in cognitive processes is described and analyzed. This approach leads to recognition of boundary conditions for and directions of probable development of cognitive tools. It is shown how the transition from a conventional Japanese-English character dictionary to a multi-dimensional language database is an instance of such an abstraction-reconstruction cycle. The different phases of the design of a multi-dimensional language database based upon different computer software technologies are properly placed in this cycle. The methods used include the use of UNIX software tools, classical database methods as-well-as the use of search engines based upon full text search in this process. Several directions of application and extension for a multi-dimensional language database are discussed from the general point of view of an abstraction-reconstruction cycle. KW - abstraction-reconstruction cycle KW - database KW - dictionary KW - hypertext, search engine KW - retrieval methods KW - UNIX Y1 - 1997 SN - 0-8186-8084-9 SP - 200 EP - 217 PB - IEEE CY - Los Alamitos ER - TY - CHAP A1 - Herder, Jens A1 - Cohen, Michael ED - Gorayska, Barbara ED - Nehaniv, Chrystopher L. ED - Marsh, Jonathon P. T1 - Enhancing Perspicuity of Objects in Virtual Reality Environments T2 - Proceedings, Second International Conference on Cognitive Technology N2 - In an information-rich Virtual Reality (VR) environment, the user is immersed in a world containing many objects providing that information. Given the finite computational resources of any computer system, optimization is required to ensure that the most important information is presented to the user as clearly as possible and in a timely fashion. In particular, what is desired are means whereby the perspicuity of an object may be enhanced when appropriate. An object becomes more perspicuous when the information it provides to the user becomes more readily apparent. Additionally, if a particular object provides high-priority information, it would be advantageous to make that object obtrusive as well as highly perspicuous. An object becomes more obtrusive if it draws attention to itself (or equivalently, if it is hard to ignore). This paper describes a technique whereby objects may dynamically adapt their representation in a user's environment according to a dynamic priority evaluation of the information each object provides. The three components of our approach are: - an information manager that evaluates object information priority, - an enhancement manager that tabulates rendering features associated with increasing object perspicuity and obtrusion as a function of priority, and - a resource manager that assigns available object rendering resources according to features indicated by the enhancement manager for the priority set for each object by the information manager. We consider resources like visual space (pixels), sound spatialization channels (mixels), MIDI/audio channels, and processing power, and discuss our approach applied to different applications. Assigned object rendering features are implemented locally at the object level (e.g., object facing the user using the billboard node in VRML 2.0) or globally, using helper applications (e.g., active spotlights, semi-automatic cameras). KW - autonomous actors KW - obtrusion KW - perspicuity KW - spatial media KW - spatialization KW - user interface design man-machine interfaces KW - Virtual Reality Y1 - 1997 SN - 0-8186-8084-9 SP - 228 EP - 237 PB - IEEE CY - Los Alamitos ER - TY - JOUR A1 - Amano, Katsumi A1 - Matsushita, Fumio A1 - Yanagawa, Hirofumi A1 - Cohen, Michael A1 - Herder, Jens A1 - Martens, William A1 - Koba, Yoshiharu A1 - Tohyama, Mikio T1 - A Virtual Reality Sound System Using Room-Related Transfer Functions Delivered Through a Multispeaker Array: the PSFC at the University of Aizu Multimedia Center JF - TVRSJ N2 - The PSFC, or Pioneer Sound Field Controller, is a DSP-driven hemispherical loudspeaker array, installed at the University of Aizu Multimedia Center. The PSFC features realtime manipulation of the primary components of sound spatialization for each of two audio sources located in a virtual environment, including the content (apparent direction and distance) and context (room characteristics: reverberation level, room size and liveness). In an alternate mode, it can also direct the destination of the two separate input signals across 14 loudspeakers, manipulating the direction of the virtual sound sources with no control over apparent distance other than that afforded by source loudness (including no simulated environmental reflections or reverberation). The PSFC speaker dome is about 10 m in diameter, accommodating about fifty simultaneous users, including about twenty users comfortably standing or sitting near its ``sweet spot,'' the area in which the illusions of sound spatialization are most vivid. Collocated with a large screen rear-projection stereographic display, the PSFC is intended for advanced multimedia and virtual reality applications. KW - audio signal processing, audio telecommunications KW - auralization KW - calm technology KW - directional mixing console KW - multichannel sound reproduction KW - room-related transfer functions KW - roomware KW - sound localization KW - virtual conferencing environment Y1 - 1998 U6 - https://doi.org/10.18974/tvrsj.3.1_1 VL - 3 IS - 1 SP - 1 EP - 12 PB - J-STAGE ER - TY - CHAP A1 - Cohen, Michael A1 - Herder, Jens ED - Göbel, Martin ED - Landauer, Jürgen ED - Lang, Ulrich ED - Wapler, Matthias T1 - Symbolic representations of exclude and include for audio sources and sinks: Figurative suggestions of mute/solo & cue and deafen/confide & harken T2 - Virtual Environments ’98, Proceedings of the Eurographics Workshop Y1 - 1998 SN - 3-211-83233-5 U6 - https://doi.org/10.1007/978-3-7091-7519-4_23 SP - 235 EP - 242 PB - Springer-Verlag CY - Stuttgart ER - TY - JOUR A1 - Herder, Jens T1 - Tools and Widgets for Spatial Sound Authoring JF - Computer Networks & ISDN Systems Y1 - 1998 VL - 30 IS - 20-21 SP - 1933 EP - 1940 PB - Elsevier ER - TY - CHAP A1 - Martens, William L. A1 - Herder, Jens T1 - Perceptual criteria for eliminating reflectors and occluders from the rendering of environmental sound T2 - 137th Regular Meeting of the Acoustical Society of America and the 2nd Convention of the European Acoustics Association N2 - Given limited computational resources available for the rendering of spatial sound imagery, we seek to determine effective means for choosing whatcomponents of the rendering will provide the most audible differences in the results. Rather than begin with an analytic approach that attempts to predict audible differences on the basis of objective parameters, we chose to begin with subjective tests of how audibly different the rendering result may be heard to be when that result includes two types of sound obstruction: reflectors and occluders. Single-channel recordings of 90 short speech sounds were made in an anechoic chamber in the presence and absence of these two types of obstructions, and as the angle of those obstructions varied over a 90 degree range. These recordings were reproduced over a single loudspeaker in that anechoic chamber, and listeners were asked to rate how confident they were that the recording of each of these 90 stimuli included an obstruction. These confidence ratings can be used as an integral component in the evaluation function used to determine which reflectors and occluders are most important for rendering. KW - audio rendering KW - first-order reflection KW - human perception KW - level of detail KW - occluder KW - sound spatialization resource management Y1 - 1999 PB - Acoustical Society of America, European Acoustics Association CY - Berlin ER - TY - CHAP A1 - Martens, William L. A1 - Herder, Jens A1 - Shiba, Yoshiki T1 - A filtering model for efficient rendering of the spatial image of an occluded virtual sound source T2 - 137th Regular Meeting of the Acoustical Society of America and the 2nd Convention of the European Acoustics Association N2 - Rendering realistic spatial sound imagery for complex virtual environments must take into account the effects of obstructions such as reflectors and occluders. It is relatively well understood how to calculate the acoustical consequence that would be observed at a given observation point when an acoustically opaque object occludes a sound source. But the interference patterns generated by occluders of various geometries and orientations relative to the virtual source and receiver are computationally intense if accurate results are required. In many applications, however, it is sufficient to create a spatial image that is recognizable by the human listener as the sound of an occluded source. In the interest of improving audio rendering efficiency, a simplified filtering model was developed and its audio output submitted to psychophysical evaluation. Two perceptually salient components of occluder acoustics were identified that could be directly related to the geometry and orientation of a simple occluder. Actual occluder impulse responses measured in an anechoic chamber resembled the responses of a model incorporating only a variable duration delay line and a low-pass filter with variable cutoff frequenc KW - audio rendering KW - first-order reflection KW - human perception KW - occluder Y1 - 1999 PB - Acoustical Society of America, European Acoustics Association CY - Berlin ER - TY - CHAP A1 - Ishikawa, Kimitaka A1 - Hirose, Minefumi A1 - Herder, Jens T1 - A Sound Spatialization Server for a Speaker Array as an Integrated Part of a Virtual Environment T2 - IEEE YUFORIC Germany 98 N2 - Spatial sound plays an important role in virtual reality environments, allowing orientation in space, giving a feeling of space, focusing the user on events in the scene, and substituting missing feedback cues (e.g., force feedback). The sound spatialization framework of the University of Aizu, which supports number of spatialization backends, has been extended to include a sound spatialization server for a multichannel loudspeaker array (Pioneer Sound Field Control System). Our goal is that the spatialization server allows easy integration into virtual environments. Modeling of distance cues, which are essential for full immersion, is discussed. Furthermore, the integration of this prototype into different applications allowed us to reveal the advantages and problems of spatial sound for virtual reality environments. KW - distance cue KW - loudspeaker array KW - psychoacoustic KW - sound spatialization server Y1 - 1998 UR - http://vsvr.medien.hs-duesseldorf.de/publications/ve98-spatial-server/welcome.html PB - IEEE CY - Stuttgart ER - TY - JOUR A1 - Griesert, Arnfried A1 - Walczak, Oliver A1 - Herder, Jens T1 - Interactive Realtime Terrain Visualization for Virtual Set Applications JF - Journal of the 3D-Forum Society N2 - Virtual set environments for broadcasting become more sophisticated as well as the visual quality improves. Realtime interaction and production-specific visualization implemented through plugin mechanism enhance the existing systems like the virtual studio software 3DK. This work presents an algorithm which can dynamically manage textures of high resolution by prefetching them depending on their requirement in memory and map them on a procedural mesh in realtime. The main goal application of this work is the virtual representation of a flight over a landscape as part of weather reports in virtual studios and the interaction by the moderator. KW - 3D KW - VSVR KW - Virtual (TV) Studio Y1 - 2003 VL - 17 IS - 4 SP - 20 EP - 26 ER - TY - CHAP A1 - Herder, Jens A1 - Yamazaki, Yasuhiro T1 - A Chatspace Deploying Spatial Audio for Enhanced Conferencing T2 - Third International Conference on Human and Computer KW - VSVR Y1 - 2000 SP - 197 EP - 202 PB - University of Aizu CY - Aizu-Wakamatsu ER - TY - THES A1 - Herder, Jens T1 - A Sound Spatialization Resource Management Framework N2 - In a virtual reality environment, users are immersed in a scene with objects which might produce sound. The responsibility of a VR environment is to present these objects, but a practical system has only limited resources, including spatialization channels (mixels), MIDI/audio channels, and processing power. A sound spatialization resource manager, introduced in this thesis, controls sound resources and optimizes fidelity (presence) under given conditions, using a priority scheme based on psychoacoustics. Objects which are spatially close together can be coalesced by a novel clustering algorithm, which considers listener localization errors. Application programmers and VR scene designers are freed from the burden of assigning mixels and predicting sound source locations. The framework includes an abstract interface for sound spatialization backends, an API for the VR environments, and multimedia authoring tools. KW - audio rendering KW - human perception KW - Resource Management KW - Sound Spatialization Y1 - 1999 UR - http://vsvr.medien.hs-duesseldorf.de/publications/phd99-abstract.html PB - University of Tsukuba CY - Tsukuba ER - TY - JOUR A1 - Herder, Jens T1 - Visualization of a Clustering Algorithm of Sound Sources based on Localization Errors JF - Journal of the 3D-Forum Society N2 - A module for soundscape monitoring and visualizing resource management processes was extended for presenting clusters, generated by a novel sound source clustering algorithm. This algorithm groups multiple sound sources together into a single representative source, considering localization errors depending on listener orientation. Localization errors are visualized for each cluster using resolution cones. Visualization is done in runtime and allows understanding and evaluation of the clustering algorithm. KW - audio rendering, clustering KW - human perception KW - Resource Management KW - Sound Spatialization KW - Visualization Y1 - 1999 VL - 13 IS - 3 SP - 66 EP - 70 ER - TY - CHAP A1 - Herder, Jens T1 - Optimization of Sound Spatialization Resource Management through Clustering T2 - Second International Conference on Human and Computer N2 - Level-of-detail is a concept well-known in computer graphics to reduce the number of rendered polygons. Depending on the distance to the subject (viewer), the objects’ representation is changed. A similar concept is the clustering of sound sources for sound spatialization. Clusters can be used to hierarchically organize mixels and to optimize the use of resources, by grouping multiple sources together into a single representative ource. Such a clustering process should minimize the error of position allocation of elements, perceived as angle and distance, and also differences between velocity relative to the sink (i.e., Doppler shift). Objects with similar direction of motion and speed (relative to sink) in the same acoustic resolution cone and with similar distance to a sink can be grouped together. KW - audio rendering KW - clustering, and human perception KW - Resource Management KW - Sound Spatialization Y1 - 1999 SP - 1 EP - 7 CY - Aizu-Wakamatsu ER - TY - CHAP A1 - Herder, Jens T1 - Visualization of a Clustering Algorithm of Sound Sources based on Localization Errors T2 - Second International Conference on Human and Computer N2 - A module for soundscape monitoring and visualizing resource management processes was extended for presenting clusters, generated by a novel sound source clustering algorithm. This algorithm groups multiple sound sources together into a single representative source, considering localization errors depending on listener orientation. Localization errors are visualized for each cluster using resolution cones. Visualization is done in runtime and allows understanding and evaluation of the clustering algorithm. KW - audio rendering, clustering KW - human perception KW - Resource Management KW - Sound Spatialization KW - Visualization Y1 - 1999 SP - 1 EP - 5 CY - Aizu-Wakamatsu ER - TY - JOUR A1 - Jens Herder, T1 - Optimization of Sound Spatialization Resource Management through Clustering JF - Journal of the 3D-Forum Society N2 - Level-of-detail is a concept well-known in computer graphics to reduce the number of rendered polygons. Depending on the distance to the subject (viewer), the objects’ representation is changed. A similar concept is the clustering of sound sources for sound spatialization. Clusters can be used to hierarchically organize mixelsand to optimize the use of resources, by grouping multiple sources together into a single representative source. Such a clustering process should minimize the error of position allocation of elements, perceived as angle and distance, and also differences between velocity relative to the sink (i.e., Doppler shift). Objects with similar direction of motion and speed (relative to sink) in the same acoustic resolution cone and with similar distance to a sink can be grouped together. KW - audio rendering KW - clustering, and human perception KW - Resource Management KW - Sound Spatialization KW - VSVR Y1 - 1999 VL - 13 IS - 3 SP - 59 EP - 65 ER - TY - JOUR A1 - Cohen, Michael A1 - Herder, Jens A1 - L. Martens, William T1 - Cyberspatial Audio Technology T1 - available in Japanese as well - Acoustical Society of Japan, Vol. 55, No. 10, pp. 730-731 JF - The Journal of the Acoustical Society of Japan (E) N2 - Cyberspatial audio applications are distinguished from the broad range of spatial audio applications in a number of important ways that help to focus this review. Most significant is that cyberspatial audio is most often designed to be responsive to user inputs. In contrast to non-interactive auditory displays, cyberspatial auditory displays typically allow active exploration of the virtual environment in which users find themselves. Thus, at least some portion of the audio presented in a cyberspatial environment must be selected, processed, or otherwise rendered with minimum delay relative to user input. Besides the technological demands associated with realtime delivery of spatialized sound, the type and quality of auditory experiences supported are also very different from those associated with displays that support stationary sound localization. Y1 - 1999 U6 - https://doi.org/10.1250/ast.20.389 N1 - available in Japanese as well - Acoustical Society of Japan, Vol. 55, No. 10, pp. 730-731 VL - 20 IS - 6 SP - 389 EP - 395 ER - TY - GEN A1 - Herder, Jens T1 - Interactive Sound Spatialization - a Primer T2 - MM News, University of Aizu Multimedia Center N2 - Sound spatialization is a technology which puts sound into the three dimensional space, so that it has a perceivable direction and distance. Interactive means mutually or reciprocally active. Interaction is when one action (e.g., user moves mouse) has direct or immediate influence to other actions (e.g., processing by a computer: graphics change in size). Based on this definition an introduction to sound reproduction using DVD and virtual environments is given and illustrated by applications (e.g., virtual converts). KW - DVD KW - Interactivity KW - Resource Management KW - Sound Spatialization KW - Virtual Concerts KW - VSVR Y1 - 2000 UR - http://vsvr.medien.hs-duesseldorf.de/publications/mmnews2000-8.pdf VL - 8 SP - 8 EP - 12 ER - TY - CHAP A1 - Honno, Kuniaki A1 - Suzuki, Kenji A1 - Herder, Jens T1 - Distance and Room Effects Control for the PSFC, an Auditory Display using a Loudspeaker Array T2 - Third International Conference on Human and Computer N2 - The Pioneer Sound Field Controller (PSFC), a loudspeaker array system, features realtime configuration of an entire sound field,including sound source direction, virtual distance, and context of simulated environment (room characteristics: room size and liveness)for each of two sound sources. In the PSFC system, there is no native parameter to specify the distance between the sound source and sound sink (listener) and also no function to control it directrly. This paper suggests the method to control virtual distance using basic parameters: volume, room size and liveness. The implementation of distance cue is an important aspect of 3D sounds. Virtual environments supporting room effects like reverberation not only gain realism but also provide additional information to users about surrounding space. The context switch of different aural attributes is done by using an API of the Sound Spatialization Framework. Therefore, when the sound sink move through two rooms, like a small bathroom and a large living room, the context of the sink switches and different sound is obtained. KW - VSVR Y1 - 2000 SP - 71 EP - 76 PB - University of Aizu CY - Aizu-Wakamatsu ER - TY - CHAP A1 - Herder, Jens T1 - Applications of Spatial Auditory Displays in the Context of Art and Music T2 - Human Supervision and Control in Engineering and Music KW - VSVR Y1 - 2001 PB - Universität Kassel CY - Kassel ER - TY - JOUR A1 - Herder, Jens T1 - Interactive Content Creation with Virtual Set Environments JF - Journal of the 3D-Forum Society N2 - Digital broadcasting enables interactive \sc tv studios with virtual set environments. This presentation reviews current technology and describes the requirements for such systems. Interoperability over the production, streaming, and viewer levels requires open interfaces. As the technology allow more interaction, it becomes inherent difficult to control the quality of the viewers experience. KW - Interactive Media KW - Sound Spatialization KW - Virtual Sets KW - virtual studio KW - VSVR Y1 - 2001 VL - 15 IS - 4 SP - 53 EP - 56 ER - TY - CHAP A1 - Yamazaki, Yasuhiro A1 - Herder, Jens T1 - Exploring Spatial Audio Conferencing Functionality in Multiuser Virtual Environments T2 - The Third International Conference on Collaborative Virtual Environments N2 - A chatspace was developed that allows conversation with 3D sound using networked streaming in a shared virtual environment. The system provides an interface to advanced audio features, such as a "whisper function" for conveying a confided audio stream. This study explores the use of spatial audio to enhance a user's experience in multiuser virtual environments. KW - chatspaces KW - groupware KW - narrowcasting functions KW - networked audio KW - spatial audio KW - VSVR Y1 - 2000 SP - 207 EP - 208 PB - ACM CY - San Francisco ER - TY - CHAP A1 - Suzuki, Kenji A1 - Nishoji, Yuji A1 - Herder, Jens T1 - Implementation of Aural Attributes for Simulation of Room Effects in Virtual Environments T2 - ACM Multimedia 2000 N2 - The audio design for virtual environments includes simulation of acoustical room properties besides specifing sound sources and sinks and their behavior. Virtual environments supporting room reverberation not only gain realism but also provide additional information to the user about surrounding space. Catching the different sound properties by the different spaces requires partitioning the space by the properties of aural spaces. We define soundscape and aural attributes as an application and multimedia content interface. Calculated data on an abstract level is sent to spatialization backends. Part of this research was the implementation of a device driver for the Roland Sound Space Processor. This device not only directionalizes sound sources, but also controls room effects like reverberation. KW - Acoustic displays KW - Aural attributes KW - Room effects KW - Virtual environments KW - VSVR Y1 - 2000 SP - 439 EP - 441 PB - ACM CY - Los Angeles ER -