TY - JOUR A1 - Köpping, Lukas A1 - Ebner, Frank A1 - Grzegorzek, Marcin A1 - Deinzer, Frank T1 - Indoor localization using step and turn detection together with floor map information JF - FHWS science journal N2 - In this work we present a method to estimate an indoor position with the help of smartphone sensors and without any knowledge of absolute positioning systems like Wi-Fi signals. Our system uses particle filtering to solve the recursive state estimation problem of finding the position of a pedestrian. We show how to integrate the information of the previous state into the weight update step and how the observation data can help within the state transition model. High positional accuracy can be achieved by only knowing that the pedestrian makes a foot step or changes her direction together with floor map information. KW - particle filter KW - step detection KW - turn detection Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:863-opus-976 VL - 2 (2014) IS - 1 SP - 40 EP - 49 ER - TY - JOUR A1 - Torres-Sospedra, Joaquín A1 - Jiménez, Antonio R. A1 - Knauth, Stefan A1 - Moreira, Adriano A1 - Beer, Yair A1 - Fetzer, Toni A1 - Ta, Viet-Cuong A1 - Montoliu, Raul A1 - Seco, Fernando A1 - Mendoza-Silva, Germán M. A1 - Belmonte, Oscar A1 - Koukofikis, Athanasios A1 - Nicolau, Maria João A1 - Costa, António A1 - Meneses, Filipe A1 - Ebner, Frank A1 - Deinzer, Frank A1 - Vaufreydaz, Dominique A1 - Dao, Trung-Kien A1 - Castelli, Eric T1 - The Smartphone-Based Offline Indoor Location Competition at IPIN 2016: Analysis and Future Work JF - Sensors Y1 - 2017 U6 - https://doi.org/10.3390/s17030557 SN - 1424-8220 VL - 17 IS - 3 ER - TY - JOUR A1 - Ebner, Frank A1 - Fetzer, Toni A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - On Wi-Fi Model Optimizations for Smartphone-Based Indoor Localization JF - ISPRS International Journal of Geo-Information Y1 - 2017 U6 - https://doi.org/10.3390/ijgi6080233 SN - 2220-9964 VL - 6 IS - 8 ER - TY - CHAP A1 - Ebner, Frank A1 - Fetzer, Toni A1 - Köping, Lukas A1 - Grzegorzek, Marcin A1 - Deinzer, Frank T1 - Multi Sensor 3D Indoor Localisation T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2015) Y1 - 2015 UR - https://ieeexplore.ieee.org/iel7/7336693/7346746/07346772.pdf SP - 1 EP - 11 ER - TY - CHAP A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Ebner, Frank A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Fast Kernel Density Estimation Using Gaussian Filter Approximation T2 - 21st International Conference on Information Fusion, FUSION 2018, Cambridge, UK, July 10-13, 2018 Y1 - 2018 U6 - https://doi.org/10.23919/ICIF.2018.8455686 SP - 1233 EP - 1240 ER - TY - JOUR A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Ebner, Frank A1 - Ebner, Markus A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Comparison of 2.4 GHz WiFi FTM- and RSSI-Based Indoor Positioning Methods in Realistic Scenarios JF - Sensors Y1 - 2020 U6 - https://doi.org/10.3390/s20164515 SN - 1424-8220 VL - 20 IS - 16 ER - TY - CHAP A1 - Ebner, Frank A1 - Deinzer, Frank A1 - Koping, Lukas A1 - Grzegorzek, Marcin T1 - Robust self-localization using Wi-Fi, step/turn-detection and recursive density estimation T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2014) Y1 - 2014 U6 - https://doi.org/10.1109/IPIN.2014.7275537 SP - 627 EP - 635 ER - TY - JOUR A1 - Fetzer, Toni A1 - Ebner, Frank A1 - Bullmann, Markus A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Smartphone-Based Indoor Localization within a 13th Century Historic Building JF - Sensors Y1 - 2018 U6 - https://doi.org/10.3390/s18124095 SN - 1424-8220 VL - 18 IS - 12 ER - TY - JOUR A1 - Fetzer, Toni A1 - Ebner, Frank A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Using Barometer for Floor Assignation within Statistical Indoor Localization JF - Sensors Y1 - 2023 U6 - https://doi.org/10.3390/s23010080 SN - 1424-8220 VL - 23 IS - 1 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Niemann, Heinrich T1 - Viewpoint Selection - A Classifier Independent Learning Approach T2 - IEEE Southwest Symposium on Image Analysis and Interpretation, Austin, Texas, USA Y1 - 2000 UR - https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=839601 SN - 0-7695-0595-3 SP - 209 EP - 213 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Niemann, Heinrich ED - Sommer, G. ED - Krüger, N. ED - Perwass, Ch. T1 - Classifier Independent Viewpoint Selection for 3-D Object Recognition T2 - Mustererkennung 2000, 22. DAGM-Symposium, Kiel Y1 - 2000 UR - https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=8398ae0830730be8047a810c0f90efdbcd7eb60d SN - 3-540-67886-7 SP - 237 EP - 244 ER - TY - CHAP A1 - Gräßl, Christoph A1 - Deinzer, Frank A1 - Niemann, Heinrich ED - Krasnoproshin, V. ED - Ablameyko, S. ED - Soldek, J. T1 - Continuous Parametrization of Normal Distributions for Improving the Discrete Statistical Eigenspace Approach for Object Recognition T2 - Pattern Recognition and Information Processing Y1 - 2003 UR - https://d1wqtxts1xzle7.cloudfront.net/42129001/Continuous_parametrization_of_normal_dis20160205-16346-rayto3-libre.pdf?1454667530=&response-content-disposition=inline%3B+filename%3DContinuous_parametrization_of_normal_dis.pdf&Expires=1696432558&Signature=TmoSjs27NuupbCgHp6Y6aZdGGychAuKRf66hsbjelx-Zxe3FPaK25CiMC73SL~I4uz0DbjQN3ZwmFYwlgMuJRRcgO6AIaac4vNtJHfly-lOPIhXYqdsA3w3VwDeFU2SzEWZ7KEdn~rHjk4ZK8TZ6JOGzbO4CIe5SnOyhwUJL7w9o6~UwGGvtHKtNYOugvbwMdDr7iOanVhRQvMT5Fr1AEp5-mDS9VAg~7fkMD39pc-9vRBj0-4eS4tBQQFApJeYR244n7e~4wRClNqZp2lfn5kPjf-df5xj6iXBIUe4EKt53cR~ZFvE96N405yH14wGiTpGd1Vtx5VC-J0mS4o9XeQ__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA VL - 1 SP - 73 EP - 77 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Niemann, Heinrich ED - Radig, B. T1 - On Fusion of Multiple Views for Active Object Recognition T2 - Pattern Recognition – Proceedings of the 23rd DAGM Symposium Y1 - 2001 UR - https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=5170210ad2af6eef654e4313395dccab8b094bf7 VL - 2191 SP - 239 EP - 245 ER - TY - CHAP A1 - Gräßl, Christoph A1 - Deinzer, Frank A1 - Mattern, F. A1 - Niemann, Heinrich T1 - Improving Statistical Object Recognition Approaches by a Parameterization of Normal Distributions T2 - 6th German-Russian IAPR Workshop on Pattern Recognition and Image Understanding Y1 - 2003 SP - 38 EP - 41 ER - TY - CHAP A1 - Gräßl, Christoph A1 - Deinzer, Frank A1 - Mattern, F. A1 - Niemann, Heinrich T1 - Improving Statistical Object Recognition Approaches by a Parameterization of Normal Distributions T2 - 6th German-Russian IAPR Workshop on Pattern Recognition and Image Understanding N2 - As statistical approaches play an important role in object recognition, we present a novel approach which is based on object mod- els consisting of normal distributions for each training image. We show how to parameterize the mean vector and covariance matrix independently from the interpolation technique and formulate the classification and localization as a continuous optimization problem. This enables the computation of object poses which have never been seen during training. For interpolation, we present four different techniques which are compared in an experiment with real images. The results show the benefits of our method both in classification rate and pose estimation accuracy. Y1 - 2004 UR - https://www.researchgate.net/profile/Frank-Deinzer/publication/215748368_Improving_Statistical_Object_Recognition_Approaches_by_a_Parameterization_of_Normal_Distributions/links/0912f51017f34be4cb000000/Improving-Statistical-Object-Recognition-Approaches-by-a-Parameterization-of-Normal-Distributions.pdf SN - 1054-6618 VL - 14 IS - 2 SP - 222 EP - 230 ER - TY - CHAP A1 - Grzegorzek, Marcin A1 - Deinzer, Frank A1 - Reinhold, Michael A1 - Denzler, Joachim A1 - Niemann, Heinrich ED - Ertl, T. ED - Girod, B. ED - Greiner, G. ED - Niemann, Heinrich ED - Seidl, H.-P. ED - Steinbach, E. ED - Westermann, R. T1 - How Fusion of Multiple Views Can Improve Object Recognition in Real-World Environments T2 - Proceedings of the Vision, Modeling, and Visualization Conference 2003 N2 - In the past decades most object recognition systems were based on passive approaches. But in the last few years a lot of research was done in the field of active object recognition. In this context there are several unique problems to be solved. One of them is how to fuse a series of images that might differ in their viewpoints. In this paper we present a well-founded approach for the fusion of multiple views based on a recursive density propagation method. It uses particle filters for solving the fusion in a continuous pose space. Furthermore we will show by means of a statistical object recognition system how to integrate such systems into our fusion approach. The experimental result will show, how the fusion can improve classification rates substantial, es-pecially for difficult conditions like heterogeneous background within real world environments. Y1 - 2003 UR - https://pub.inf-cv.uni-jena.de/pdf/Grzegorzek03:HFO.pdf SN - 3-89838-048-3 SP - 553 EP - 560 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Niemann, Heinrich ED - Petkov, N. ED - Westenberg, M. T1 - Viewpoint Selection – Planning Optimal Sequences of Views for Object Recognition T2 - Computer Analysis of Images and Patterns – CAIP 2003 Y1 - 2003 UR - https://pub.inf-cv.uni-jena.de/pdf/Deinzer03:VSP.pdf SN - 3-540-40730-8 VL - 2756 SP - 65 EP - 73 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Niemann, Heinrich T1 - Improving Object Recognition By Fusion Of Multiple Views T2 - Proceedings of the Third Indian Conference on Computer Vision Graphics and Image Processing Y1 - 2002 UR - https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=fb45b6f10124e4ae3a0e9c27c8ece6632c25c519 SP - 161 EP - 166 ER - TY - CHAP A1 - Reinhold, M. A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Paulus, D. A1 - Pösl, Joseph ED - Girod, B. ED - Niemann, Heinrich ED - Seidel, H.-P. T1 - Active Appearance-Based Object Recognition Using Viewpoint Selection T2 - Proceedings of the 2000 Conference on Vision Modeling and Visualization N2 - In this paper we address the classification of 3–D objects that look similar from sev-eral sights and can only be distinguished from some certain viewpoints. For this purpose we combine a statistical appearance-based object recognition approach with an active viewpoint selection mechanism. For appearance-based object recognition lo-cal features are derived from wavelet multires-olution analysis. The recognition process is performed hierarchically in a statistical frame-work by a maximum likelihood estimation. Based on this result the active viewpoint se-lection mechanism chooses one further view that allows a reliable classification. Hereby the viewpoint selection mechanism can be trained unsupervised and represents the space of possible viewpoints continuously. Experimental results show that our approach is well suited for a reliable classifica-tion of similar looking objects only by one fur-ther view. Y1 - 2000 UR - http://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2000/Reinhold00-AAO.pdf SP - 105 EP - 112 ER - TY - CHAP A1 - Deutsch, Benjamin A1 - Deinzer, Frank A1 - Zobel, Matthias A1 - Denzler, Joachim T1 - Active Sensing Strategies for Robotic Platforms, with an Application in Vision-Based Gripping T2 - Proceedings of the 1st International Conference on Informatics in Control, Automation and Robotics Y1 - 2004 UR - https://www.academia.edu/download/73872520/535b65e41b63181cc789e3b9f2bfd2d51e17.pdf SN - 972-8865-12-0 VL - 2 SP - 169 EP - 176 ER - TY - CHAP A1 - Fischer, Julia A1 - Haas, Jürgen A1 - Nöth, Elmar A1 - Niemann, Heinrich A1 - Deinzer, Frank T1 - Empowering Knowledge Based Speech Understanding through Statistics T2 - 5th Interational Conference on Spoken Language Processing Y1 - 1998 UR - https://www.academia.edu/download/42129006/Empowering_Knowledge_Based_Speech_Unders20160205-16348-1ph4ycn.pdf VL - 5 SP - 2231 EP - 2235 ER - TY - JOUR A1 - Deinzer, Frank A1 - Fischer, Julia A1 - Ahlrichs, Ulrike A1 - Nöth, Elmar T1 - Learning of Domain Dependent Knowledge in Semantic Networks JF - Eurospeech N2 - For an effcient linguistic analysis of spoken queries a lot of domain specific knowledge is needed and usually has to be entered manually into the knowledge base of each domain. This makes the adaption of dialogue systems which base on explicit knowledge representation to new domains a very costly pro cedure. We use a frequency based statistical method combined with general hidden markov models in order to learn domain specific knowledge within a semantic network formalism. As a framework we use a dialogue system for German train timetable information. By means of experiments we show that our statistical approach is not only able to reach, but even outperforms previous results with manually entered restrictions. Y1 - 1999 UR - https://www.isca-speech.org/archive/pdfs/eurospeech_1999/deinzer99_eurospeech.pdf VL - 5 SP - 1987 EP - 1990 ER - TY - CHAP A1 - Derichs, Christian A1 - Deinzer, Frank A1 - Niemann, Heinrich T1 - Cost Integration in Multi-Step Viewpoint Selection for Object Recognition T2 - Proceedings of the International Conference on Machine Learning and Data Mining MLDM 2005 Y1 - 2005 UR - http://opendl.ifip-tc6.org/db/conf/mldm/mldm2005/DerichsDN05.pdf SP - 415 EP - 425 ER - TY - BOOK A1 - Deinzer, Frank T1 - Optimale Ansichtenauswahl in der aktiven Objekterkennung T3 - Studien zur Mustererkennung Y1 - 2005 SN - 978-3-8325-1054-1 ER - TY - JOUR A1 - Deinzer, Frank A1 - Ostermeier, Martin T1 - Overlay 3D - Fusion of 2D Fluoroscopic Images and 3D Volume Data Sets Y1 - 2005 ER - TY - CHAP A1 - Karmonik, C. A1 - Strother, C. M. A1 - Chen, X. A1 - Deinzer, Frank A1 - Klucznik, R. A1 - Mawad, M. T1 - Pre-treatment Planning and Virtual Stent Visualization in the Parent Artery of Intracranial Aneurysms T2 - Proceedings of the 43rd Annual Meeting of the American Society of Neuroradiology Y1 - 2005 ER - TY - JOUR A1 - Karmonik, C. A1 - Strother, C. M. A1 - Chen, X. A1 - Deinzer, Frank A1 - Klucznick, R. A1 - Mawad, M. E. T1 - Stent-Assisted Coiling of Intracranial Aneurysms Aided by Virtual Parent Artery Reconstruction JF - AJNR American Journal of Neuroradiology Y1 - 2005 UR - http://www.ajnr.org/content/ajnr/26/9/2368.full.pdf VL - 26 IS - 6 SP - 2368 EP - 2370 ER - TY - CHAP A1 - Deinzer, Frank A1 - Denzler, Joachim A1 - Derichs, Christia A1 - Niemann, Heinrich ED - Narayanan, P.J. ED - Nayar, Shree K. ED - Shum, Heung-Yeung T1 - Aspects of Optimal Viewpoint Selection and Viewpoint Fusion T2 - Computer Vision – ACCV 2006 Y1 - 2006 UR - https://www.academia.edu/download/42129003/Aspects_of_Optimal_Viewpoint_Selection_a20160205-16346-xbaya7.pdf SN - 3-540-31244-7 VL - 3852 SP - 902 EP - 912 ER - TY - CHAP A1 - Deinzer, Frank A1 - Derichs, Christian A1 - Denzler, Joachim A1 - Niemann, Heinrich T1 - Integrated Viewpoint Fusion and Viewpoint Selection for Optimal Object Recognition T2 - British Machine Vision Conference 2006 Y1 - 2006 UR - https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=31338fb98333d68463ddda4846c7a3ff55a2202a SP - 287 EP - 296 ER - TY - CHAP A1 - Feldmann, Tobias A1 - Bouattour, Sahla A1 - Paulus, Dietrich A1 - Deinzer, Frank T1 - Kombination verschiedener Ähnlichkeitsmaße für die 2D/3D-Registrierung von Röntgenbildern mittels Demokratischer Integration T2 - Bildverarbeitung für die Medizin 2006, Algorithmen - Systeme - Anwendungen N2 - Für die 2D/3D-Registrierung von Bilddatensätzen eines Patienten werden verschiedene intensitätsbasierte Ähnlichkeitsmaße eingesetzt. Diese haben den Nachteil, dass sie nur auf bestimmten Bilddaten gute Ergebnisse liefern und zusätzlich heuristisch parameterisiert werden müssen. In diesem Beitrag wird ein neues Verfahren vorgestellt, dass beliebig viele Ähnlichkeitsmaße integriert und automatisch das für den jeweiligen Bilddatensatz geeignetste am höchsten gewichtet. Dazu werden die freien Parameter der Maße an das Bildmaterial automatisch adaptiert. Unsere Experimente belegen die Wirksamkeit der Methode. Y1 - 2006 SN - 978-3-540-32136-1 SN - 978-3-540-32137-8 U6 - https://doi.org/10.1007/3-540-32137-3_46 SP - 226 EP - 230 PB - Springer CY - Berlin, Heidelberg ER - TY - JOUR A1 - Bernhardt, Philipp A1 - Lendl, Markus A1 - Deinzer, Frank T1 - New Technologies to Reduce Pediatric Radiation Doses JF - Pediatric Radiology Y1 - 2006 U6 - https://doi.org/10.1007/s00247-006-0212-4 VL - 36 IS - Supplement 1 SP - 212 EP - 215 ER - TY - JOUR A1 - Kubias, Alexander A1 - Deinzer, Frank A1 - Feldmann, Tobias A1 - Paulus, Dietrich A1 - Schreiber, Bernd A1 - Brunner, Thomas T1 - 2D/3D Image Registration on the GPU JF - Pattern Recognition and Image Analysis Y1 - 2008 U6 - https://doi.org/10.1134/S1054661808030048 VL - 18 IS - 3 SP - 381 EP - 389 ER - TY - CHAP A1 - Fieselmann, Andreas A1 - Lautenschläger, Stefan A1 - Deinzer, Frank A1 - John, Matthias A1 - Poppe, Björn T1 - Automated 3D Segmentation of the Esophagus For Planning of Atrial Ablation Therapy T2 - 39. Wissenschaftliche Jahrestagung der DGMP in Oldenburg Y1 - 2008 ER - TY - CHAP A1 - Fieselmann, Andreas A1 - Lautenschläger, Stefan A1 - Deinzer, Frank A1 - Poppe, Björn T1 - Automatic Detection of Air Holes Inside the Esophagus in CT Images T2 - Bildverarbeitung für die Medizin 2008, Algorithmen - Systeme - Anwendungen Y1 - 2008 UR - http://ftp.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-347/p397.pdf SP - 397 EP - 401 ER - TY - JOUR A1 - Fieselmann, Andreas A1 - Lautenschläger, Stefan A1 - Deinzer, Frank A1 - John, Matthias A1 - Poppe, Björn T1 - Esophagus Segmentation by Spatially-Constrained Shape Interpolation JF - Bildverarbeitung für die Medizin 2008, Algorithmen - Systeme - Anwendungen Y1 - 2008 UR - http://ftp.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-347/p247.pdf SP - 247 EP - 251 ER - TY - JOUR A1 - Platzer, Esther A1 - Deinzer, Frank A1 - Paulus, Dietrich A1 - Denzler, Joachim T1 - 3D Blood Flow Visualization from 2D Angiograms JF - Bildverarbeitung für die Medizin 2008, Algorithmen - Systeme - Anwendungen Y1 - 2008 SP - 288 EP - 292 ER - TY - CHAP A1 - Kubias, Alexander A1 - Deinzer, Frank A1 - Feldmann, Tobias A1 - Paulus, Dietrich A1 - Schreiber, Bernd A1 - Brunner, Thomas T1 - 2D/3D Image Registration on the GPU T2 - Proceedings of the 7th Open German/Russian Workshop on Pattern Recognition and Image Understanding Y1 - 2007 ER - TY - CHAP A1 - Kubias, Alexander A1 - Deinzer, Frank A1 - Feldmann, Tobias A1 - Paulus, Dietrich T1 - Extended Global Optimization Strategy for Rigid 2D/3D Image Registration T2 - Computer Analysis of Images and Patterns, 12th International Conference, CAIP 2007 Y1 - 2007 VL - 4673 SP - 759 EP - 767 ER - TY - CHAP A1 - Kubias, Alexander A1 - Deinzer, Frank A1 - Kreiser, Matthias A1 - Paulus, Dietrich T1 - Efficient Computation of Histograms on the GPU T2 - 23rd Spring Conference on Computer Graphics Y1 - 2007 UR - https://dl.acm.org/doi/pdf/10.1145/2614348.2614377 ER - TY - JOUR A1 - Werner, Max A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Deinzer, Frank T1 - Unified Probabilistic and Similarity-Based Position Estimation from Radio Observations JF - Sensors N2 - We propose a modeling approach for position estimation based on the observed radio propagation in an environment. The approach is purely similarity-based and therefore free of explicit physical assumptions. What distinguishes it from classical related methods are probabilistic position estimates. Instead of just providing a point estimate for a given signal sequence, our model returns the distribution of possible positions as continuous probability density function, which allows for appropriate integration into recursive state estimation systems. The estimation procedure starts by using a kernel to compare incoming data with reference recordings from known positions. Based on the obtained similarities, weights are assigned to the reference positions. An arbitrarily chosen density estimation method is then applied given this assignment. Thus, a continuous representation of the distribution of possible positions in the environment is provided. We apply the solution in a Particle Filter (PF) system for smartphone-based indoor localization. The approach is tested both with radio signal strength (RSS) measurements (Wi-Fi and Bluetooth Low Energy RSSI) and round-trip time (RTT) measurements, given by Wi-Fi Fine Timing Measurement. Compared to distance-based models, which are dedicated to the specific physical properties of each measurement type, our similarity-based model achieved overall higher accuracy at tracking pedestrians under realistic conditions. Since it does not explicitly consider the physics of radio propagation, the proposed model has also been shown to work flexibly with either RSS or RTT observations. Y1 - 2025 U6 - https://doi.org/https://doi.org/10.3390/s25134092 SN - 1424-8220 VL - 25 IS - 13 PB - MDPI AG ER - TY - CHAP A1 - Werner, Max A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Meißner, Pascal A1 - Deinzer, Frank T1 - Interpolation of Position Estimates for Radio Fingerprinting using Gaussian Process Regression T2 - 2025 International Conference on Indoor Positioning and Indoor Navigation (IPIN) Y1 - 2025 U6 - https://doi.org/10.1109/IPIN66788.2025.11213294 SP - 1 EP - 6 PB - IEEE ER - TY - CHAP A1 - Köping, Lukas A1 - Mühsam, Thomas A1 - Ofenberg, Christian A1 - Czech, Bernhard A1 - Bernard, Michael A1 - Schmer, Jens A1 - Deinzer, Frank T1 - Indoor Naviagtion Using Step and Turn Detection Together With Floor Map Information T2 - Proceedings of the 1st International Workshop on Uncertainty in Ambient Intelligence Y1 - 2013 ER - TY - CHAP A1 - Huffstadt, Karsten A1 - Fetzer, Toni A1 - Petry, Christian A1 - Deinzer, Frank T1 - 3D Interaction Design: Increasing the stimulus-response correspondence by using stereoscopic vision T2 - Proceedings of the 11th IEEE International Conference on Automatic Face and Gesture Recognition Conference and Workshops N2 - This paper presents a hand-based interaction approach for grabbing and manipulating virtual objects within immersive virtual environments. Considering the stimulus-response of humans, interacting with objects is easier if depth information is provided by stereoscopic vision. However, most people are used to work in monoscopic virtual environments. Therefore, we propose a case study, to analyze if an interaction approach using stereoscopic vision, compared to a conventional monoscopic vision, results in a higher user acceptance and stimulus-response correspondence. Our interaction approach is based on a robust and fast running 3D hand- and head-tracking provided by Microsoft's Kinect. We present a simple non-collision-based method for grabbing and manipulating objects within a 3D virtual environment. By tracking the head, the user is able to move within the environment and interact depending on his current position. The use of stereoscopic vision allows a natural and instinctive hand interaction with the augmented object. Finally, the experimental results and studies show how the use of stereoscopic vision improves the mental mapping and thus the user acceptance and stimulus-response correspondence in consideration of using the here presented interaction approach. Y1 - 2015 U6 - https://doi.org/10.1109/FG.2015.7163120 VL - 1 SP - 1 EP - 6 ER - TY - CHAP A1 - Fetzer, T. A1 - Ebner, F. A1 - Köping, L. A1 - Grzegorzek, M. A1 - Deinzer, Frank T1 - Recovering From Sample Impoverishment in Context of Indoor Localisation T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2017) Y1 - 2017 UR - https://ieeexplore.ieee.org/iel7/8106926/8115856/08115863.pdf SP - 1 EP - 8 ER - TY - CHAP A1 - Köping, Lukas A1 - Grzegorzek, Marcin A1 - Deinzer, Frank A1 - Bobek, Szymon A1 - Slazynski, Mateusz A1 - Nalepa, Grzegorz T1 - Improving indoor localization by user feedback T2 - 18th International Conference on Information Fusion (Fusion) Y1 - 2015 UR - https://ieeexplore.ieee.org/iel7/7229502/7266535/07266675.pdf SP - 1053 EP - 1060 ER - TY - CHAP A1 - Ebner, F. A1 - Fetzer, T. A1 - Deinzer, Frank A1 - Grzegorzek, M. T1 - On Prior Navigation Knowledge in Multi Sensor Indoor Localisation T2 - International Conference on Information Fusion (FUSION 2016) Y1 - 2016 UR - https://www.researchgate.net/profile/Toni-Fetzer/publication/306118756_On_Prior_Navigation_Knowledge_in_Multi_Sensor_Indoor_Localisation/links/57da7d8508aeea195932334f/On-Prior-Navigation-Knowledge-in-Multi-Sensor-Indoor-Localisation.pdf ER - TY - CHAP A1 - Fetzer, T. A1 - Ebner, F. A1 - Köping, L. A1 - Grzegorzek, M. A1 - Deinzer, Frank T1 - On Monte Carlo Smoothing in Multi Sensor Indoor Localisation T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2016) Y1 - 2016 UR - https://ieeexplore.ieee.org/iel7/7738315/7743575/07743670.pdf ER - TY - JOUR A1 - Ebner, Markus A1 - Fetzer, Toni A1 - Bullmann, Markus A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Recognition of Typical Locomotion Activities Based on the Sensor Data of a Smartphone in Pocket or Hand JF - Sensors Y1 - 2020 U6 - https://doi.org/10.3390/s20226559 SN - 1424-8220 VL - 20 IS - 22 ER - TY - CHAP A1 - Fetzer, Toni A1 - Deinzer, Frank A1 - Koping, Lukas A1 - Grzegorzek, Marcin T1 - Statistical indoor localization using fusion of depth-images and step detection T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2014) Y1 - 2014 U6 - https://doi.org/10.1109/IPIN.2014.7275509 SP - 407 EP - 415 ER - TY - JOUR A1 - Deinzer, Frank A1 - Fetzer, Toni T1 - Die Mischung macht’s: Mit KI und Augmented Reality die Welt immersiv erkunden JF - Transfer – Das Steinbeis-Magazin Y1 - 2021 VL - 2021 IS - 3 SP - 39 EP - 41 ER - TY - JOUR A1 - Prappacher, Nico A1 - Bullmann, Markus A1 - Bohn, Gunther A1 - Deinzer, Frank A1 - Linke, Andreas T1 - Defect Detection on Rolling Element Surface Scans Using Neural Image Segmentation JF - Applied Sciences Y1 - 2020 U6 - https://doi.org/10.3390/app10093290 SN - 2076-3417 VL - 10 IS - 9 ER - TY - JOUR A1 - Deinzer, Frank A1 - Derichs, Christian A1 - Denzler, Joachim A1 - Niemann, Heinrich T1 - A Framework for Actively Selecting Viewpoints in Object Recognition JF - International Journal of Pattern Recognition and Artificial Intelligence Y1 - 2009 U6 - https://doi.org/10.1142/S0218001409007351 VL - 23 IS - 4 SP - 765 EP - 799 ER - TY - CHAP A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Ebner, Markus A1 - Kastner, Steffen A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Data Driven Sensor Model for Wi-Fi Fine Timing Measurement T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2022) Y1 - 2022 UR - https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9918111 ER - TY - CHAP A1 - Ebner, Markus A1 - Fetzer, Toni A1 - Bullmann, Markus A1 - Kastner, Steffen A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - PIPF: Proposal-Interpolating Particle Filter T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN 2022) Y1 - 2022 UR - https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9918102 ER - TY - JOUR A1 - Kastner, Steffen A1 - Ebner, Markus A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Magnetic Signature Sensor Model for Accurate Short-Distance Localization JF - 2022 IEEE Sensors Y1 - 2022 U6 - https://doi.org/10.1109/SENSORS52175.2022.9967176 SP - 1 EP - 4 ER - TY - JOUR A1 - Fetzer, Toni A1 - Maier, Julian A1 - Ebner, Markus A1 - Bullmann, Markus A1 - Deinzer, Frank T1 - Digitales Spaghetti-Diagramm zur Laufweganalyse JF - wt Werkstattstechnik online Y1 - 2022 VL - 112 IS - 10/2022 SP - 727 EP - 731 ER - TY - CHAP A1 - Fetzer, Toni A1 - Bullmann, Markus A1 - Kastner, Steffen A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Advancing Smartphone-based Indoor Positioning through Particle Distribution Optimization T2 - 2024 27th International Conference on Information Fusion (FUSION) Y1 - 2024 U6 - https://doi.org/https://doi.org/10.23919/FUSION59988.2024.10706408 SP - 1 EP - 8 PB - IEEE ER - TY - CHAP A1 - Kastner, Steffen A1 - Bullmann, Markus A1 - Ebner, Markus A1 - Fetzer, Toni A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Refinement of Sparsely Tagged Ground Truth Paths Using PDR and Particle Filter Smoothing T2 - 2024 14th International Conference on Indoor Positioning and Indoor Navigation (IPIN) Y1 - 2024 U6 - https://doi.org/https://doi.org/10.1109/IPIN62893.2024.10786186 SP - 1 EP - 6 PB - IEEE ER - TY - CHAP A1 - Kastner, Steffen A1 - Ebner, Markus A1 - Bullmann, Markus A1 - Fetzer, Toni A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - SIMUL: Synchronized IMU Dataset of Walking People at Six Body Locations T2 - 2023 13th International Conference on Indoor Positioning and Indoor Navigation (IPIN) Y1 - 2023 U6 - https://doi.org/https://doi.org/10.1109/IPIN57070.2023.10332491 SP - 1 EP - 7 PB - IEEE ER - TY - CHAP A1 - Fetzer, Toni A1 - Bullmann, Markus A1 - Ebner, Markus A1 - Kastner, Steffen A1 - Deinzer, Frank A1 - Grzegorzek, Marcin T1 - Interacting Multiple Model Particle Filter for Indoor Positioning Applications T2 - Proceedings of the 2023 International Technical Meeting of The Institute of Navigation Y1 - 2023 UR - https://www.researchgate.net/profile/Toni-Fetzer/publication/368485764_Interacting_Multiple_Model_Particle_Filter_for_Indoor_Positioning_Applications/links/63fa3e960d98a97717b975ae/Interacting-Multiple-Model-Particle-Filter-for-Indoor-Positioning-Applications.pdf ER - TY - JOUR A1 - Gielinger, Sebastian A1 - Bohn, Gunther A1 - Deinzer, Frank A1 - Linke, Andreas T1 - Investigation of an inline inspection method for the examination of cylinder-like specular surfaces using deflectometry JF - applied sciences N2 - An optical measuring method is presented, with which it is possible to measure and evaluate reflective cylindrical surfaces using a combination of deflectometry and subsequent reconstruction of the surface. The system is set up and tested on rolling elements of cylindrical roller bearings. However, it is not limited to this use case and can be applied to other cylindrical specular surfaces. The system distinguishes itself from existing test methods through the combination of high-resolution three-dimensional defect measurement with a very short recording time, and offers the possibility of introducing tolerance limits in the production of cylindrical specular surfaces. With this method, it is possible to record a defect with the dimensions of 1.3 mm by 1.8 mm within 5 s and to reconstruct the absolute depth. The resolution of the system is below 10 μm in both X- and Y-direction, and is therefore sufficiently accurate to detect typical surface defects such as scratches, dents, or deformations. To validate the measured values of the system, the results of an artificially generated 10.35 μm deep defect location were compared with those of a highly accurate mechanical stylus measurement. KW - automated optical inspection KW - roller bearing KW - line scan camera Y1 - 2023 UR - https://doi.org/10.3390/app12136449 SN - 2076-3417 VL - 12 IS - 13 ER - TY - CHAP A1 - Brückner, Marcel A1 - Deinzer, Frank A1 - Denzler, Joachim ED - Yang, Guang-Zhong ED - Hawkes, David ED - Rueckert, Daniel ED - Noble, Alison ED - Taylor, Chris T1 - Temporal Estimation of the 3d Guide-Wire Position Using 2d X-ray Images T2 - Medical Image Computing and Computer-Assisted Intervention – MICCAI 2009 Y1 - 2009 UR - https://www.academia.edu/download/42129005/Temporal_estimation_of_the_3d_guide-wire20160205-19144-1xamzsr.pdf SN - 978-3-642-04267-6 VL - 5761 SP - 386 EP - 393 ER - TY - CHAP A1 - Wacker, Matthias A1 - Deinzer, Frank ED - Yang, Guang-Zhong ED - Hawkes, David ED - Rueckert, Daniel ED - Noble, Alison ED - Taylor, Chris T1 - Automatic Robust Medical Image Registration Using a New Democratic Vector Optimization Approach with Multiple Measures T2 - Medical Image Computing and Computer-Assisted Intervention – MICCAI 2009 Y1 - 2009 SN - 978-3-642-04267-6 VL - 5761 SP - 590 EP - 597 ER - TY - CHAP A1 - Köping, Lukas A1 - Mühsam, Thomas A1 - Ofenberg, Christian A1 - Czech, Bernhard A1 - Bernard, Michael A1 - Schmer, Jens A1 - Deinzer, Frank T1 - Indoor Navigation Using Particle Filter and Sensor Fusion T2 - Proceedings of the European Navigation Conference 2012 Y1 - 2012 ER - TY - CHAP A1 - Köping, L. A1 - Grzegorzek, M. A1 - Deinzer, Frank T1 - Probabilistic Step and Turn Detection in Indoor Localisation T2 - 10th IET Data Fusion Target Tracking Conference (DF TT 2014): Algorithms and Applications Y1 - 2014 UR - https://www.researchgate.net/profile/Marcin-Grzegorzek/publication/264040695_Probabilistic_Step_and_Turn_Detection_in_Indoor_Localisation/links/0046353c9a4b9b1d53000000/Probabilistic-Step-and-Turn-Detection-in-Indoor-Localisation.pdf SP - 1 EP - 7 ER - TY - JOUR A1 - Serón, Francisco A1 - de Carvalho, Carlos Vaz A1 - Saul, Melanie A1 - Deinzer, Frank A1 - Guerrero, Roberto A1 - Parra, Juan Carlos A1 - Costa, Cristiano A1 - Rigo, Sandro T1 - Realidades Virtuales/Aumentadas para el Desarrollo Social: Experiencias Entre Europa y Latinoamerica Y1 - 2014 SN - 978-950-757-046-9 ER - TY - JOUR A1 - Köping, Lukas A1 - Mühsam, Thomas A1 - Ofenberg, Christian A1 - Czech, Bernhard A1 - Bernard, Michael A1 - Schmer, Jens A1 - Deinzer, Frank T1 - Indoor Navigation Using Particle Filter and Sensor Fusion JF - Annual of Navigation Y1 - 2012 UR - https://bibliotekanauki.pl/articles/320422.pdf VL - 19 IS - 2 SP - 31 EP - 40 ER - TY - JOUR A1 - Köping, Lukas A1 - Deinzer, Frank T1 - Realidades Virtuales/Aumentadas para el Desarrollo Social: Experiencias Entre Europa y Latinoamerica Y1 - 2014 SN - 978-950-757-046-9 ER -