TY - GEN A1 - Wallraven, Christian A1 - Fleming, R. W. A1 - Cunningham, Douglas W. A1 - Rigau, J. A1 - Feixas, M. A1 - Sbert, M. T1 - Categorizing art: comparing humans and computers Y1 - 2009 ER - TY - CHAP A1 - Wallraven, Christian A1 - Fischer, J. A1 - Cunningham, Douglas W. 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 - JOUR A1 - Wallraven, Christian A1 - Fischer, J. A1 - Cunningham, Douglas W. A1 - Bartz, Dirk A1 - Bülthoff, Heinrich H. T1 - The Evaluation of Real-World and Computer-Generated Stylized Facial Expressions Y1 - 2007 ER - TY - CHAP A1 - Wallraven, Christian A1 - Cunningham, Douglas W. 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 - Wallraven, Christian A1 - Cunningham, Douglas W. A1 - Fleming, R. W. T1 - Perceptual and computational categories in art 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 SP - 131 EP - 138 PB - Eurographics Assoc. CY - Aire-la-Ville ER - TY - JOUR A1 - Wallraven, Christian A1 - Breidt, M. A1 - Cunningham, Douglas W. A1 - Bülthoff, Heinrich H. T1 - Evaluating the perceptual realism of animated facial expressions Y1 - 2008 ER - TY - CHAP A1 - Varró, Dániel A1 - Asztalos, Márk A1 - Bisztray, Dénes A1 - Boronat, Artur A1 - Dang, Duc-Hanh A1 - Geiß, Rubino A1 - Greenyer, Joel A1 - Gorp, Pieter van A1 - Kniemeyer, Ole A1 - Narayanan, Anantha A1 - Rencis, Edgars A1 - Weinell, Erhard T1 - Graph transformation tool contest on the transformation of UML models to CSP Y1 - 2008 ER - TY - CHAP A1 - Taentzer, Gabriele A1 - Biermann, Enrico A1 - Bisztray, Dénes A1 - Bohnet, Bernd A1 - Boneva, Iovka A1 - Boronat, Artur A1 - Geiger, Leif A1 - Geiß, Rubino A1 - Horvath, Ákos A1 - Kniemeyer, Ole A1 - Mens, Tom A1 - Ness, Benjamin A1 - Plump, Detlef A1 - Vajk, Tamás T1 - Generation of Sierpinski triangles: A case study for graph transformation tools Y1 - 2008 ER - TY - CHAP A1 - Stich, Timo A1 - Linz, Christian A1 - Wallraven, Christian A1 - Cunningham, Douglas W. 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 - GEN A1 - Stich, Timo A1 - Linz, Christian A1 - Wallraven, Christian A1 - Cunningham, Douglas W. 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 - GEN A1 - Sterzik, Anna A1 - Lichtenberg, Nils A1 - Krone, Michael A1 - Cunningham, Douglas W. A1 - Lawonn, Kai ED - Raidou, Renata G. ED - Sommer, Björn ED - Kuhlen, Torsten W. ED - Krone, Michael ED - Schultz, Thomas ED - Wu, Hsiang-Yun T1 - Perceptual Evaluation of Common Line Variables for Displaying Uncertainty on Molecular Surfaces T2 - Eurographics Workshop on Visual Computing for Biology and Medicine N2 - Data are often subject to some degree of uncertainty, whether aleatory or epistemic. This applies both to experimental data acquired with sensors as well as to simulation data. Displaying these data and their uncertainty faithfully is crucial for gaining knowledge. Specifically, the effective communication of the uncertainty can influence the interpretation of the data and the users' trust in the visualization. However, uncertainty-aware visualization has gotten little attention in molecular visualization. When using the established molecular representations, the physicochemical attributes of the molecular data usually already occupy the common visual channels like shape, size, and color. Consequently, to encode uncertainty information, we need to open up another channel by using feature lines. Even though various line variables have been proposed for uncertainty visualizations, they have so far been primarily used for two-dimensional data and there has been little perceptual evaluation. Therefore, we conducted a perceptual study to determine the suitability of the line variables sketchiness, dashing, grayscale, and width for distinguishing several uncertainty values on molecular surfaces. KW - Human centered computing KW - Empirical studies in visualization KW - Scientific visualization KW - Computing methodologies KW - Non-photorealistic rendering KW - Applied computing KW - Imaging KW - CCS Concepts Y1 - 2022 UR - https://diglib.eg.org/handle/10.2312/vcbm20221186 SN - 978-3-03868-177-9 U6 - https://doi.org/10.2312/vcbm.20221186 SN - 2070-5786 SP - 41 EP - 51 PB - The Eurographics Association ER - TY - CHAP A1 - Smolenová, Katarina A1 - Hemmerling, Reinhard T1 - Growing virtual plants for virtual worlds T2 - Proceedings of the Spring Conference on Computer Graphics SCCG 2008, Budmerice (SK), Comenius University Bratislava, April 21-23, 2008 Y1 - 2008 SN - 978-1-60558-957-2 SP - 67 EP - 74 PB - ACM Press CY - New York, NY ER - TY - JOUR A1 - Schwaninger, Adrian A1 - Wallraven, Christian A1 - Cunningham, Douglas W. 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 - CHAP A1 - Schorradt, Martin T. A1 - Legde, Katharina A1 - Castillo, Susana A1 - Cunningham, Douglas W. 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 - GEN A1 - Schorradt, Martin T. A1 - Cunningham, Douglas W. ED - Lau, Manfred ED - Robb, Andrew ED - Barnett-Cowan, Michael ED - Serrano, Ana ED - Malpica, Sandra T1 - Erosion as a novel Approach for removing Semantics and Comparison of different State-of-Art-Methods T2 - SAP '22: ACM Symposium on Applied Perception 2022 N2 - Through language, people convey not only pure semantics, but also information about themselves, such as age, gender, state of mind or health. The supralingual features that carry this information have been a subject of research for a long time. Various procedures have been proposed to remove unneeded semantics from speech recordings, in order to study supralingual information in natural speech. In this paper, we propose a new method for removing sematics, based on erosion, a morphological operator. We compare its effectiveness to different state-of-the-art methods. As established methods we consider two low pass filters with cut off frequencies of 450Hz and 1150Hz and Brownian noise. As a newer method we investigate a filter for spectro-temporal frequencies. To evaluate each method, appropriately processed recordings were presented to a group of participants in a perceptual experiment. The intelligibility was measured by means of the Levenshtein distance. Our results show that erosion itself performs similarly to the established methods, while a combination of erosion and low-pass filter outperforms all other methods. Y1 - 2022 SN - 978-1-4503-9455-0 U6 - https://doi.org/10.1145/3548814.3551458 SP - 1 EP - 6 PB - Association for Computing Machinery New York NY United States ER - TY - GEN A1 - Schorradt, Martin T. A1 - Cunningham, Douglas W. ED - Tumuluri, Raj ED - Sebe, Nicu ED - Pingali, Gopal ED - Jayagopi, Dinesh Babu ED - Dhall, Abhinav ED - Singh, Richa ED - Anthony, Lisa ED - Salah, Albert Ali T1 - Age Regression for Human Voices T2 - ICMI '22: INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION Bengaluru India November 7 - 11, 2022 N2 - The human voice is one of our most important tools for communicating with other people. Besides pure semantic meaning it also conveys syntactical information such as emphasis as well as personal information such as emotional state, gender, and age. While the physical changes that occur to a person’s voice are well studied, there is surprisingly little work on the perception of those changes. To hold the range of subtleties present in a given utterance constant and thus focus on the changes caused by age, this paper takes adult recordings (three males, and three females) and artificially resynthesizes them (using values from measurements of real children’s voices) to create a childlike versions of the utterance at different target ages. In particular, we focus on a systematic, factorial combination pitch shifting and formant shifting. To get an insight about the influence of these factors on the estimated age, we performed a perceptual experiment. Since the resynthesis method we used can produce a wide range of voices, not all of which are physically consistent, we also asked the participants to rate how natural the voices sounded. Furthermore, since former studies suggest that people are not able to distinguish between males and females of young ages, participants were also asked to rate how male or female the voices sounded. Overall, we found that although the synthesis method produced physically plausible signals (compared average values for real children), the degree of signal manipulation was correlated with perceived unnaturalness. We also found that pitch shift had only a small affect on perceived age, that formant shift had a strong affect on perceived age, and that these effects depended on the original gender of the recording. As expected, people had difficulty guessing the gender of younger sounding voices. KW - Age Synthesis KW - Age Regression KW - Speech Synthesis KW - Speech Processing Y1 - 2022 SN - 978-1-4503-9390-4 U6 - https://doi.org/10.1145/3536221.3556599 SP - 570 EP - 578 PB - Association for Computing Machinery New York NY United States ER - TY - GEN A1 - Schorradt, Martin T. A1 - Castillo, Susana A1 - Cunningham, Douglas W. T1 - The Semantic Space for Emotional Speech and the Influence of Different Methods for Prosody Isolation on Its Perception T2 - SAP '18: Proceedings of the 15th ACM Symposium on Applied Perception Y1 - 2018 SN - 978-1-4503-5894-1 U6 - https://doi.org/10.1145/3225153.3225156 SP - 1 EP - 8 PB - Association for Computing Machinery CY - New York, NY, United States ER - TY - CHAP A1 - Salah, Z. A1 - Cunningham, Douglas W. 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 - JOUR A1 - Riecke, B. E. A1 - Cunningham, Douglas W. A1 - Bülthoff, Heinrich H. T1 - Spatial Updating in Virtual Reality: The Sufficiency of Visual Information Y1 - 2007 ER - TY - CHAP A1 - Rensink, Arend A1 - Dotor, Alexander A1 - Ermel, Claudia A1 - Jurack, Stefan A1 - Kniemeyer, Ole A1 - Lara, Juan de A1 - Maier, Sonja A1 - Staijen, Tom A1 - Zündorf, Albert T1 - Ludo: A case study for graph transformation tools Y1 - 2008 ER -