TY - CHAP A1 - Pouli, Tania A1 - Reinhard, Erik A1 - Cunningham, Douglas William ED - Laplante, Phillip A. T1 - Fourier Analysis T2 - Encyclopedia of Image Processing Y1 - 2018 SN - 978-1-4822-4490-8 SP - 194 EP - 215 PB - CRC Press CY - Boca Raton ER - TY - GEN A1 - Stich, Timo A1 - Linz, Christian A1 - Wallraven, Christian A1 - Cunningham, Douglas William A1 - Magnor, Marcus T1 - Perception-motivated interpolation of image sequences T2 - ACM Transactions and Applied Perception Y1 - 2011 SN - 1544-3965 VL - 8 IS - 2 SP - 1 EP - 25 ER - TY - CHAP A1 - Pouli, Tania A1 - Reinhard, Erik A1 - Cunningham, Douglas William ED - Laplante, Phillip A. T1 - Markov Random Fields T2 - Encyclopedia of Image Processing Y1 - 2018 SN - 978-1-4822-4490-8 SP - 411 EP - 420 PB - CRC Press CY - Boca Rotan ER - TY - GEN A1 - Cunningham, Douglas William A1 - Wallraven, Christian T1 - Dynamic information for the recognition of conversational expressions Y1 - 2009 ER - TY - GEN A1 - Fang, Hui A1 - Tam, Gary K. L. A1 - Borgo, Rita A1 - Aubrey, Andrew A1 - Grant, Philip W. A1 - Rosin, Paul L. A1 - Wallraven, Christian A1 - Cunningham, Douglas William A1 - Marshall, David A1 - Chen, Min T1 - Visualizing Natural Image Statistics T2 - IEEE Transactions on Visualization and Computer Graphics Y1 - 2013 SN - 1941-0506 VL - 19 IS - 7 SP - 1228 EP - 1241 ER - TY - GEN A1 - Castillo, Susana A1 - Legde, Katharina A1 - Cunningham, Douglas William T1 - The Semantic Space for Motion-Captured Facial Expressions T2 - Computer Animation and Virtual Worlds Y1 - 2018 U6 - https://doi.org/10.1002/cav.1823 SN - 1546-427X VL - 29 IS - 3-4 ER - TY - GEN A1 - Castillo, Susana A1 - Cunningham, Douglas William A1 - Winger, Christian A1 - Breuß, Michael T1 - Morphological Amoeba-based Patches for Exemplar-Based Inpainting T2 - Journal of WSCG Y1 - 2018 SN - 1213-6972 VL - 26 IS - 2 SP - 112 EP - 121 ER - TY - GEN A1 - Castillo, Susana A1 - Legde, Katharina A1 - Cunningham, Douglas William T1 - The semantic space for motion-captured facial expressions T2 - Computer Animation and Virtual Worlds Y1 - 2018 SN - 1546-427X VL - 29 IS - 3-4 ER - TY - GEN A1 - Kaulard, Kathrin A1 - Cunningham, Douglas William A1 - Bülthoff, Heinrich H. A1 - Wallraven, Christian T1 - The MPI facial expressions database - A validated database of emotional and conversational facial expressions T2 - PLoS one Y1 - 2012 SN - 1932-6203 VL - 7 IS - 3 SP - 1 EP - 18 ER - TY - GEN A1 - Preim, Bernhard A1 - Baer, Alexandra A1 - Cunningham, Douglas William A1 - Isenberg, Tobias A1 - Ropinski, Timo T1 - A survey of perceptually motivated 3d visualization of medical image data T2 - Computer Graphics Forum Y1 - 2016 SN - 1467-8659 SN - 0167-7055 VL - 35 IS - 3 SP - 501 EP - 525 ER - TY - JOUR A1 - Cunningham, Douglas William T1 - Visual prediction as indicated by perceptual adaptation to temporal delays and discrete stimulation JF - Behavioral and Brain Sciences Y1 - 2008 SN - 1469-1825 VL - 31 IS - 2 SP - 203 EP - 204 ER - TY - GEN A1 - Castillo, Susana A1 - Hahn, Philipp A1 - Legde, Katharina A1 - Cunningham, Douglas William T1 - Personality Analysis of Embodied Conversational Agents Y1 - 2018 UR - http://www.cere-emotionconferences.org/wp-content/uploads/2016/01/CERE-Full-Program_ABSTRACTS_April3.pdf N1 - Poster presented on the CERE'18:7th Consortium of European Research on Emotion Conference in Glasgow, Scotland, Poster 38 ER - TY - BOOK A1 - Cunningham, Douglas William A1 - Wallraven, Christian T1 - Experimental Design: From user studies to psychophysics Y1 - 2011 SN - 978-1-568-81468-1 SN - 1-568-81468-2 PB - CRC Press CY - Boca Raton, FL ER - TY - GEN A1 - Jäger, Matthias C. A1 - Eberhardt, Jörg A1 - Cunningham, Douglas William T1 - Experimental Analysis of Commercial Optical Methods for Foot Measurement T2 - Sensors N2 - Due to the increasing trend of online shopping, shoes are more and more often bought without being tried on. This leads to a strong increase in returns, which results in a high financial as well as ecological burden. To prevent this, feet can be measured either in the store or at home by various systems to determine the exact dimensions of the foot and derive an optimal shoe size. In this paper, we want to present an overview of the methods currently available on the market for the measurement of feet. The most important commercial systems are classified according to the underlying basic technology. Subsequently, the most promising methods were implemented and tested. The results of the different methods were finally compared to find out the strengths and weaknesses of each technology. After determining the measurement accuracy of the length and width for each measurement method and also comparing the general shape of the 3D reconstruction with the GT, it can be said that the measurement using a ToF sensor is currently the most robust, the easiest and, among other methods, the most accurate method. KW - foot measurement KW - time of flight KW - structured light KW - image processing KW - shape completion Y1 - 2022 U6 - https://doi.org/10.3390/s22145438 SN - 1424-8220 VL - 22 IS - 14 ER - TY - GEN A1 - Fotsing, Cedrique A1 - Hahn, Philipp A1 - Cunningham, Douglas William A1 - Bobda, Christophe T1 - Volumetric wall detection in unorganized indoor point clouds using continuous segments in 2D grids T2 - Automation in Construction N2 - The quality of 3D models of existing buildings reconstructed from point clouds is strongly related to the segmentation process used to detect structural elements. A new wall detection method in the indoor point clouds of buildings is presented in this study. The point clouds are segmented into horizontal layers, and a concept of continuous segments in a 2D grid representation is used to extract the footprints of the wall structures, and 2D blocks are projected into 3D space to obtain the wall segments in the initial 3D point cloud. The results obtained from the execution of the proposed method demonstrate that wall blocks in indoor point clouds are detected independently of their shape. Executing the proposed method on a set of 9 in-door point clouds revealed better performance in terms of result quality and execution time compared to RANSAC. The robustness of the method can be improved by adding a classification step to eliminate non-consistent blocks. KW - Point cloud KW - Segmentation KW - Wall detection Y1 - 2022 U6 - https://doi.org/10.1016/j.autcon.2022.104462 SN - 0926-5805 IS - 141 ER - TY - GEN A1 - Baer, Alexandra A1 - Gasteiger, Rocco A1 - Cunningham, Douglas William A1 - Preim, Bernhard T1 - Perceptual evaluation of ghosted view techniques for the exploration of vascular structures and embedded flow T2 - Computer Graphics Forum Y1 - 2011 SN - 1467-8659 VL - 30 IS - 3 SP - 811 EP - 820 ER - TY - GEN A1 - Legde, Katharina A1 - Castillo, Susana A1 - Cunningham, Douglas William T1 - Multimodal affect: Perceptually evaluating an affective talking head T2 - ACM Transactions on Applied Perception : (TAP) Y1 - 2015 U6 - https://doi.org/10.1145/2811265 SN - 1544-3965 VL - 12 IS - 4 SP - 17-1 EP - 17-17 ER - TY - GEN A1 - Pouli, Tania A1 - Cunningham, Douglas William A1 - Reinhard, Erik T1 - A survey of image statistics relevant to computer graphics T2 - Computer Graphics Forum Y1 - 2011 SN - 1467-8659 VL - 30 IS - 6 SP - 1761 EP - 1788 ER - TY - CHAP A1 - Breuß, Michael A1 - Mansouri Yarahmadi, Ashkan A1 - Cunningham, Douglas William ED - Welk, Martin ED - Urschler, Martin ED - Roth, Peter M. T1 - The Convex-Concave Ambiguity in Perspective Shape from Shading T2 - Proceedings of the OAGM Workshop 2018 Medical Image Analysis, May 15 - 16, 2018, Hall/Tyrol, Austria N2 - Shape from Shading (SFS) is a classic problem in computer vision. In recent years many perspective SFS models have been studied that yield useful SFS approaches when a photographed object is close to the camera. However, while the ambiguities inherent to the classical, orthographic SFS models are well-understood, there has been no discussion of possible ambiguities in perspective SFS models. In this paper we deal with the latter issue. Therefore we adopt a typical perspective SFS setting. We show how to transform the corresponding image irradiance equation into the format of the classical orthographic setting by employing spherical coordinates. In the latter setting we construct a convex-concave ambiguity for perspective SFS. It is to our knowledge the first time in the literature that this type of ambiguity is constructed and verified for a perspective SFS model. KW - Shape from Shading Y1 - 2018 SN - 978-3-85125-603-1 U6 - https://doi.org/10.3217/978-3-85125-603-1-13 SP - 57 EP - 63 PB - Verlag der TU Graz CY - Graz ER - TY - CHAP A1 - Hahn, Philipp A1 - Castillo, Susana A1 - Cunningham, Douglas William T1 - Look Me in the Lines: The Impact of Stylization on the Recognition of Expressions and Perceived Personality T2 - IVA '18, Proceedings of the 18th International Conference on Intelligent Virtual Agents, Sydney, NSW, Australia, November 05-08, 2018 Y1 - 2018 SN - 978-1-4503-6013-5 U6 - https://doi.org/10.1145/3267851.3267881 SP - 339 EP - 340 PB - ACM CY - New York, NY ER - TY - CHAP A1 - Castillo, Susana A1 - Hahn, Philipp A1 - Legde, Katharina A1 - Cunningham, Douglas William T1 - Personality Analysis of Embodied Conversational Agents T2 - IVA '18 Proceedings of the 18th International Conference on Intelligent Virtual Agents, Sydney, NSW, Australia, November 05-08, 2018 Y1 - 2018 SN - 978-1-4503-6013-5 U6 - https://doi.org/10.1145/3267851.3267853 SP - 227 EP - 232 PB - ACM CY - New York, NY ER - TY - CHAP A1 - Cunningham, Douglas William A1 - Ashkerov, Mikhail T1 - Using a spatiotemporal plane to recover a moving object’s shape using Spatiotemporal Boundary Formation T2 - WSCG 2018, Plzen, Czech Republic, May 28–June 1, 2018, Poster proceedings Y1 - 2018 SN - 978-80-86943-42-8 U6 - https://doi.org/10.24132/CSRN.2018.2803.9 SP - 61 EP - 66 PB - University of West Bohemia CY - Pilsen ER - TY - CHAP A1 - Legde, Katharina A1 - Castillo, Susana A1 - Cunningham, Douglas William T1 - AgeRegression: Rejuvenating 3D-Facial Scans T2 - WSCG 2018, Plzen, Czech Republic, May 28–June 1, 2018, Short Papers Proceedings Y1 - 2018 SN - 978-80-86943-41-1 U6 - https://doi.org/10.24132/CSRN.2018.2802.24 SP - 190 EP - 199 PB - University of West Bohemia CY - Pilsen ER - TY - CHAP A1 - Koulieris, George Alex A1 - Drettakis, George A1 - Cunningham, Douglas William A1 - Mania, Katerina T1 - Gaze prediction using machine learning for dynamic stereo manipulation in games T2 - 2016 IEEE Virtual Reality (VR, 19-23 March 2016, Greenville, SC, USA Y1 - 2016 SN - 978-1-5090-0836-0 U6 - https://doi.org/10.1109/VR.2016.7504694 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Guthe, Stefan A1 - Schardt, P. A1 - Goesele, M. A1 - Cunningham, Douglas William T1 - Ghosting and popping detection for imagebased rendering T2 - 3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON), Hamburg, Germany Y1 - 2016 SN - 978-1-5090-3313-3 U6 - https://doi.org/10.1109/3DTV.2016.7548891 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Fotsing, Cedrique A1 - Tchuitcheu, Willy Carlos A1 - Besong, Lemopi Isidore A1 - Cunningham, Douglas William A1 - Bobda, Christophe ED - Mei, Guofeng T1 - A specialized pipeline for efficient and reliable 3D semantic model reconstruction of buildings from indoor point clouds T2 - Journal of Imaging N2 - Recent advances in laser scanning systems have enabled the acquisition of 3D point cloud representations of scenes, revolutionizing the fields of Architecture, Engineering, and Construction (AEC). This paper presents a novel pipeline for the automatic generation of 3D semantic models of multi-level buildings from indoor point clouds. The architectural components are extracted hierarchically. After segmenting the point clouds into potential building floors, a wall detection process is performed on each floor segment. Then, room, ground, and ceiling extraction are conducted using the walls 2D constellation obtained from the projection of the walls onto the ground plan. The identification of the openings in the walls is performed using a deep learning-based classifier that separates doors and windows from non-consistent holes. Based on the geometric and semantic information from previously detected elements, the final model is generated in IFC format. The effectiveness and reliability of the proposed pipeline are demonstrated through extensive experiments and visual inspections. The results reveal high precision and recall values in the extraction of architectural elements, ensuring the fidelity of the generated models. In addition, the pipeline’s efficiency and accuracy offer valuable contributions to future advancements in point cloud processing. KW - point cloud KW - segmentation KW - building information modeling KW - 3D semantic model KW - IFC Y1 - 2024 U6 - https://doi.org/10.3390/jimaging10100261 SN - 2313-433X VL - 10 IS - 10 PB - MDPI ER - TY - JOUR A1 - Wallraven, Christian A1 - Fischer, J. A1 - Cunningham, Douglas William A1 - Bartz, Dirk A1 - Bülthoff, Heinrich H. T1 - The Evaluation of Real-World and Computer-Generated Stylized Facial Expressions Y1 - 2007 ER - TY - JOUR A1 - Schwaninger, Adrian A1 - Wallraven, Christian A1 - Cunningham, Douglas William A1 - Chiller-Glaus, Sarah D. T1 - Processing of identity and emotion in faces: a psychophysical, physiological and computational perspective JF - Progress in Brain Research Y1 - 2006 SN - 1875-7855 VL - 156 SP - 321 EP - 343 ER - TY - JOUR A1 - Riecke, B. E. A1 - Cunningham, Douglas William A1 - Bülthoff, Heinrich H. T1 - Spatial Updating in Virtual Reality: The Sufficiency of Visual Information Y1 - 2007 ER - TY - CHAP A1 - Breuß, Michael A1 - Cunningham, Douglas William A1 - Welk, Martin ED - Cunningham, Douglas William ED - Hofstedt, Petra ED - Meer, Klaus ED - Schmitt, Ingo T1 - Scale spaces for cognitive systems: a position paper T2 - Informatik 2015, Tagung vom 28. September – 2. Oktober 2015 in Cottbus KW - Scale spaces KW - partial differential equations KW - cognitive systems KW - perception Y1 - 2015 UR - http://subs.emis.de/LNI/Proceedings/Proceedings246/1253.pdf SN - 978-3-88579-640-4 SP - 1253 EP - 1255 PB - Gesellschaft für Informatik CY - Bonn ER - TY - CHAP A1 - Aubrey, Andrew A1 - Cunningham, Douglas William A1 - Marshall, David A1 - Rosin, Paul L. A1 - Wallraven, Christian T1 - The face speaks: contextual and temporal sensitivity to backchannel responses T2 - Computer Vision - ACCV 2012 Workshops, Daejeon, Korea, November 5-6, 2012, part II Y1 - 2012 SN - 978-3-642-37483-8 SP - 248 EP - 259 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Cunningham, Douglas William A1 - Nusseck, H.-G. A1 - Teufel, H. A1 - Wallraven, Christian A1 - Bülthoff, Heinrich H. T1 - A psychophysical examination of Swinging Rooms, Cylindrical Virtual Reality setups, and characteristic trajectories T2 - Proceedings, Virtual Reality Conference, 25 - 29 March 2006, Alexandria, VA Y1 - 2006 SN - 1-4244-0224-7 SN - 1-424-40223-9 SP - 111 EP - 118 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Cunningham, Douglas William ED - Cunningham, Douglas William ED - Hofstedt, Petra ED - Meer, Klaus ED - Schmitt, Ingo T1 - Perceptual Graphics: The symbiosis between and formal similarity of perceptual psychology and computer graphics T2 - Informatik 2015, Tagung vom 28. September – 2. Oktober 2015 in Cottbus Y1 - 2015 SN - 978-3-88579-640-4 SP - S. 1259 PB - Gesellschaft für Informatik CY - Bonn ER - TY - CHAP A1 - Wallraven, Christian A1 - Fischer, J. A1 - Cunningham, Douglas William A1 - Bartz, Dirk A1 - Bülthoff, Heinrich H. T1 - The Evaluation of Stylized Facial Expressions T2 - Proceedings, Symposium on Applied Perception in Graphics and Visualization, APGV 2006, Boston, Massachusetts, July 28 - 29, 2006 Y1 - 2006 SN - 1-59593-429-4 SP - 85 EP - 92 PB - ACM Press CY - New York, NY ER - TY - CHAP A1 - Schorradt, Martin T. A1 - Legde, Katharina A1 - Castillo, Susana A1 - Cunningham, Douglas William T1 - Integration and evaluation of emotion in an articulatory speech synthesis system T2 - SAP '15, Proceedings of the ACM SIGGRAPH Symposium on Applied Perception Y1 - 2015 SN - 978-1-4503-3812-7 SP - S. 137 PB - ACM CY - New York, NY ER - TY - CHAP A1 - Pouli, Tania A1 - Cunningham, Douglas William A1 - Reinhard, Erik T1 - Natural Image Statistics: Foundations and Applications T2 - Eurographics Tutorial Y1 - 2013 UR - http://diglib.eg.org/EG/DL/conf/EG2013/tutorials/PDF/t8.pdf PB - Eurographics Association ER - TY - CHAP A1 - Pouli, Tania A1 - Cunningham, Douglas William A1 - Reinhard, Erik T1 - Image Statistics and their Applications in Computer Graphics T2 - Eurographics State-of-the-Art-Reports Y1 - 2010 UR - http://diglib.eg.org/EG/DL/conf/EG2010/Stars SP - 83 EP - 112 PB - Eurographics Association ER - TY - CHAP A1 - Reinhard, Erik A1 - Pouli, Tania A1 - Cunningham, Douglas William T1 - Image statistics: from data collection to applications in graphics T2 - ACM SIGGRAPH 2010, Courses 6 Y1 - 2010 SN - 978-1-4503-0395-8 PB - ACM CY - New York, NY ER - TY - CHAP A1 - Brown, Paul A1 - Cunningham, Douglas William A1 - Interrante, Victoria A1 - McCormack, Jon T1 - Computational Aesthetics 2008: Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging T2 - Computational aesthetics 2008, Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging, Lisbon, Portugal, 18-20 June, 2008 Y1 - 2008 SN - 978-3-905674-08-8 PB - Eurographics Assoc. CY - Aire-la-Ville ER - TY - CHAP A1 - Stich, Timo A1 - Linz, Christian A1 - Wallraven, Christian A1 - Cunningham, Douglas William A1 - Magnor, Marcus T1 - Perception-motivated Interpolation of Image Sequences T2 - Proceedings APGV 2008, Symposium on Applied Perception in Graphics and Visualization Los Angeles, California, August 9-10, 2008 Y1 - 2008 SN - 978-1-595-93981-4 SP - 97 EP - 106 PB - The Association for Computing Machinery CY - New York, NY ER - TY - CHAP A1 - Fischer, J. A1 - Cunningham, Douglas William A1 - Bartz, Dirk A1 - Wallraven, Christian A1 - Bülthoff, Heinrich H. A1 - Strasser, W. T1 - Measuring the Discernibility of Virtual Objects in Conventional and Stylized Augmented Reality Y1 - 2006 ER - TY - CHAP A1 - Griesser, R. T. A1 - Cunningham, Douglas William A1 - Wallraven, Christian A1 - Bülthoff, Heinrich H. T1 - Psychophysical investigation of facial expressions using computer animated faces T2 - Proceedings, Symposium on Applied Perception in Graphics and Visualization, APGV 2007, Tübingen, Germany, July 25 - 27, 2007 Y1 - 2007 SP - 11 EP - 18 PB - ACM Press CY - New York, NY ER - TY - CHAP A1 - Salah, Z. A1 - Cunningham, Douglas William A1 - Bartz, Dirk ED - Kain, Saskia T1 - Perzeptuell motivierte illustrative Darstellungsstile für komplexe Modelle T2 - Grenzenlos frei?! : Workshop-Proceedings der Tagung Mensch & Computer 2009 Y1 - 2009 SN - 978-3-8325-2181-3 SP - 311 EP - 316 PB - Logos-Verl. CY - Berlin ER - TY - CHAP A1 - Wallraven, Christian A1 - Cunningham, Douglas William A1 - Rigau, J. A1 - Feixas, M. A1 - Sbert, M. T1 - Aesthetic appraisal of art - from eye movements to computers T2 - Computational Aesthetics 2009, Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging Y1 - 2009 SN - 978-3-905674-17-0 SP - 137 EP - 144 ER - TY - CHAP A1 - Pouli, Tania A1 - Cunningham, Douglas William A1 - Reinhard, Erik T1 - Statistical regularities in low and high dynamic range images T2 - Proceedings of the 7th Symposium on Applied Perception in Graphics and Visualization, Los Angeles, 2010 Y1 - 2010 SP - 9 EP - 16 PB - ACM Digital Library CY - New York, NY ER - TY - CHAP A1 - Bartz, Dirk A1 - Cunningham, Douglas William A1 - Fischer, Jan A1 - Wallraven, Christian T1 - The Role of Perception for Computer Graphics T2 - Eurographics 2008, State-of-the-Art-Reports, Crete, Greece, 2008 Y1 - 2008 SP - 65 EP - 86 ER - TY - CHAP A1 - Cunningham, Douglas William A1 - Wallraven, Christian T1 - The interaction between motion and form in expression recognition T2 - APGV '09, Proceedings of the 6th Symposium on Applied Perception in Graphics and Visualization Y1 - 2009 SP - 41 EP - 44 PB - ACM Digital Library CY - New York, NY ER - TY - JOUR A1 - Wallraven, Christian A1 - Breidt, M. A1 - Cunningham, Douglas William A1 - Bülthoff, Heinrich H. T1 - Evaluating the perceptual realism of animated facial expressions Y1 - 2008 ER - TY - JOUR A1 - Nusseck, M. A1 - Cunningham, Douglas William A1 - Wallraven, Christian A1 - Bülthoff, Heinrich H. T1 - The contribution of different facial regions to the recognition of conversational expressions JF - Journal of vision Y1 - 2008 SN - 1534-7362 VL - 8 IS - 8 SP - 1 EP - 23 ER -