Contact

Dr. Christian Wallraven

Address: Max-Planck-Ring 8
72076 Tübingen
Room number: 112
E-Mail: christian.wallraven

 

Picture of Wallraven, Christian, Dr.

Christian Wallraven

Position: Guest Scientist  Unit: Bülthoff

As of March 2010, I am a Professor at the Department of Brain and Cognitive Engineering at Korea University. Visit my Cognitive Systems Lab homepage for more information!
Research statement

In my work, I am interested in bringing computer vision, computer graphics and psychophysics together in order to investigate fundamental perceptual and cognitive processes. This fusion of methods and approaches from these three research areas has the potential to greatly advance our understanding of the processes in the human brain.
In my research, I apply this approach to the investigation and modeling of face processing, multi-sensory object representation, object categorization, as well as to modeling of aesthetic perception.
  • Highly controllable, yet realistic computer-generated stimuli offer novel possibilities for advanced psychophysical experiments. The results from those experiments can be used to derive perceptual "shortcuts" to more efficient rendering approaches.
  • Algorithms from computer vision and machine learning can be used to model human performance. Conversely, the results from perceptual experiments can inform computer scientists about how the human brain solves "vision".
  • Generating virtual worlds with computer graphics also helps computer vision researchers, as "ground truth" is available for testing of recognition algorithms, for example. Such algorithms can on the other hand be used to generate and model highly complex scenes more quickly.

Conferences and Grants
- Local coordinator for the EU-sponsored project "POETICON", which aims to synthesize sensorimotor representations and natural language in everyday human interaction
- Co-organizer for the Fourth Symposium on Applied Perception in Graphics and Visualization (APGV07)
- Co-organizer for the second Biologically Motivated Computer Vision Workshop (BMCV2002)
- Local coordinator for the EU-sponsored project "Cognitive Vision Systems", which investigated methods and techniques to build active vision systems for recognition and categorization of objects and events

Selected publications
(For all publications, follow this link)

  • Dahl, C. D., C. Wallraven, H. H. Bülthoff and N. K. Logothetis: Humans and macaques employ similar face processing strategies. Current Biology 19(6), 509-513 (03 2009)
  • Wallraven, C., R. Fleming, D. W. Cunningham, J. Rigau, M. Feixas and M. Sbert: Categorizing art: comparing humans and computers. Computers and Graphics 33(4), 484-495 (08 2009)
  • Nusseck, M., D. W. Cunningham, C. Wallraven and H. H. Bülthoff: The contribution of different facial regions to the recognition of conversational expressions. Journal of Vision 8(8:1), 1-23 (06 2008)
  • Wallraven, C., M. Breidt, D. W. Cunningham and H. H. Bülthoff: Evaluating the Perceptual Realism of Animated Facial Expressions. ACM Transactions on Applied Perception 4(4:4), 1-20 (01 2008)
  • Cooke, T., F. Jäkel, C. Wallraven and H. H. Bülthoff: Multimodal Similarity and Categorization of Novel, Three-Dimensional Objects. Neuropsychologia 45(3), 484-495 (02 2007)
  • Wallraven, C., A. Schwaninger and H. H. Bülthoff: Learning from Humans: Computational Modeling of Face Recognition. Network: Computation in Neural Systems 16(4), 401-418 (12 2005)

Current projects
- A computational recognition system grounded in perceptual research. The system exploits the temporal information inherent in natural visual input for object learning and recognition and includes the first framework for interfacing local feature approaches with Support Vector Machines.
- Cross-species comparison of processing of faces (with C. Dahl)
- Perception of face expressions using computer animations and real videos (with D. Cunningham, and K. Kaulard)
- How do we perceive art? (with R. Fleming and R. Pepperell)
- Multimodal categorization of novel objects (with N. Gaissert)
- Visuohaptic processing of faces (with L. Dopjans)
- Computational modeling of scene gist (with C. Herdtweck)
- Recognition and categorization of objects from 3D data (with B. Browatzki and B. Graf and J. Kubacki from Fraunhofer IPA)
- Development of recording setups and processing pipelines for video sequences, 3D and 4D scanning (with M. Breidt, C. Curio, M. Kleiner)

Conferences and Grants
- Local coordinator for the EU-sponsored project "POETICON", which aims to synthesize sensorimotor representations and natural language in everyday human interaction
- Co-organizer for the Fourth Symposium on Applied Perception in Graphics and Visualization (APGV07)
- Co-organizer for the second Biologically Motivated Computer Vision Workshop (BMCV2002)
- Local coordinator for the EU-sponsored project "Cognitive Vision Systems", which investigated methods and techniques to build active vision systems for recognition and categorization of objects and events

1993 Abitur at Friedrich-List-Gymnasium in Reutlingen
1993-1999 studied Physics at the Eberhard-Karls-Universität in Tübingen
Oct 1997 - Mar 1998 DAAD - Stipend for studies at the University of Edinburgh
July 1998 - July 1999 Diploma thesis at Max Planck Institut for Biological Cybernetics on Stereo Reconstruction of Faces using Class-Based Knowledge
July 1999 Diploma of Physics (with distinction)
Sept 1999 - Oct 2006 PhD thesis at Max Planck Institut for Biological Cybernetics onA computational recognition system grounded in perceptual research
November 2002 co-organizer for the second workshop on Biologically Motivated Computer Vision
May 2001-June 2004 local co-ordinator for EU-funded COGVIS research grant
July 2007 co-organizer for the Fourth Symposium on Applied Perception in Graphics and Visualization
Sep 2009-Dec 2009 visiting researcher at Korea University
since Mar 2010 Professor at Korea University, head of http://cogsys.korea.ac.kr Cognitive Systems Lab

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Conference papers (48):

Gaissert N and Wallraven C (June-2011) Integrating Visual and Haptic Shape Information to Form a Multimodal Perceptual Space, IEEE World Haptics Conference (WHC 2011), IEEE, Piscataway, NJ, USA, 451-456.
Wallraven C, Schultze M, Mohler B, Vatakis A and Pastra K (March-2011) The POETICON enacted scenario corpus: A tool for human and computational experiments on action understanding, Ninth IEEE International Conference on Automatic Face & Gesture Recognition and Workshops (FG 2011), IEEE, Piscataway, NJ, USA, 484-491.
Herdtweck C and Wallraven C (July-2010) Horizon estimation: perceptual and computational experiments, 7th Symposium on Applied Perception in Graphics and Visualization (APGV 2010), ACM, New York, NY, USA, 49-56.
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Pastra K, Wallraven C, Schultze M, Vatakis A and Kaulard K (May-2010) The POETICON Corpus: Capturing Language Use and Sensorimotor Experience in Everyday Interaction, Seventh International Conference on Language Resources and Evaluation (LREC 2010), ELRA, Paris, France, 3031-3036.
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Gaissert N and Wallraven C (April-2010) Perceptual representations of parametrically-defined and natural objects comparing vision and haptics, IEEE Haptics Symposium 2010, IEEE, Piscataway, NJ, USA, 35-42.
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Gaissert N, Ulrichs K and Wallraven C (March-2010) Visual and Haptic Perceptual Spaces From Parametrically-Defined to Natural Objects, AAAI 2010 Spring Symposium on Cognitive Shape Processing, AAAI Press, Menlo Park, CA, USA, 2-7.
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Cunningham DW and Wallraven C (September-2009) The interaction between motion and form in expression recognition, 6th Symposium on Applied Perception in Graphics and Visualization (APGV 2009), ACM Press, New York, NY, USA, 41-44.
Wallraven C, Cunningham DW, Rigau J, Feixas M and Sbert M (May-2009) Aesthetic appraisal of art: from eye movements to computers In: Computational Aesthetics 2009, , Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging, Eurographics, Aire-La-Ville, Switzerland, 137-144.
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Spehr M, Wallraven C and Fleming RW (May-2009) Image statistics for clustering paintings according to their visual appearance In: Computational Aesthetics 2009, , Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging, Eurographics, Aire-La-Ville, Switzerland, 57-64.
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Stich T, Linz C, Wallraven C, Cunningham DW and Magnor M (August-2008) Perception-motivated interpolation of image sequences, 5th Symposium on Applied Perception in Graphics and Visualization (APGV 2008), ACM Press, New York, NY, USA, 97-106.
Gaissert N, Wallraven C and Bülthoff HH (June-2008) Analyzing perceptual representations of complex, parametrically-defined shapes using MDS In: Haptics: Perception, Devices and Scenarios, , 6th International Conference EuroHaptics 2008, Springer, Berlin, Germany, 265-274, Series: Lecture Notes in Computer Science ; 5024.
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Wallraven C, Cunningham DW and Fleming R (June-2008) Perceptual and Computational Categories in Art, Computational Aesthetics 2008: Eurographics Workshop on Computational Aesthetics (CAe 2008), Eurographics Association, Aire-la-Ville, Switzerland, 131-138.
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Bartz D, Cunningham DW, Fischer J and Wallraven C (April-2008) The Role of Perception for Computer Graphics In: Eurographics 2008, , 29th Annual Conference of the European Association for Computer Graphics (EG 2008), Blackwell, Oxford, United Kingdom, 65-86.
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Campos JL, Nusseck H-G, Wallraven C, Mohler BJ and Bülthoff HH (November-2007) Visualization and (Mis)Perceptions in Virtual Reality, 10. Workshop Sichtsysteme: Visualisierung in der Simulationstechnik, Shaker, Aachen, Germany, Tagungsband 10. Workshop Sichtsysteme, 10-14.
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Griesser RT, Cunningham DW, Wallraven C and Bülthoff HH (July-2007) Psychophysical investigation of facial expressions using computer animated faces, 4th Symposium on Applied Perception in Graphics and Visualization (APGV 2007), ACM Press, New York, NY, USA, 11-18.
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Wallraven C, Kaulard K, Kürner C, Pepperell R and Bülthoff HH (July-2007) Psychophysics for perception of (in)determinate art, 4th Symposium on Applied Perception in Graphics and Visualization (APGV 2007), ACM Press, New York, NY, USA, 115-122.
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Schwaninger A, Schumacher S, Wallraven C and Bülthoff HH (July-2007) Using 3D computer graphics for perception: The role of local and global information in face processing, 4th Symposium on Applied Perception in Graphics and Visualization (APGV 2007), ACM Press, New York, NY, USA, 19-26.
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Wallraven C, Kaulard K, Kürner C, Pepperell R and Bülthoff HH (June-2007) In the Eye of the Beholder: Perception of Indeterminate Art In: Computational Aesthetics 2007, , Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging (CAe '07), Eurographics Association, Aire-la-Ville, Switzerland, 121-128.
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Cunningham DW, Wallraven C, Fleming RW and Strasser W (June-2007) Perceptual reparameterization of material properties In: Computational Aesthetics 2007, , Eurographics Workshop on Computational Aesthetics in Graphics, Visualization and Imaging (CAe '07), Eurographics Association, Aire-la-Ville, Switzerland, 89-96.
Wallraven C and Bülthoff HH (2007) Object Recognition in Humans and Machines In: Object Recognition, Attention, and Action, , International Workshop on Object Recognition, Attention, and Action 2004, Springer, Berlin, Germany, 89-104.
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Vogel J, Schwaninger A, Wallraven C and Bülthoff HH (July-2006) Categorization of natural scenes: local vs. global information, 3rd Symposium on Applied Perception in Graphics and Visualization (APGV 2006), ACM Press, New York, NY, USA, 33-40.
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Cooke T, Wallraven C and Bülthoff H (July-2006) Characterizing Perceptual Differences Due to Haptic Exploratory Procedures: An MDS Approach, EuroHaptics International Conference (EH 2006), Paris, France, 11-19.
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Wallraven C, Fischer J, Cunningham DW, Bartz D and Bülthoff HH (July-2006) The Evaluation of Stylized Facial Expressions, 3rd Symposium on Applied Perception in Graphics and Visualization (APGV 2006), ACM Press, New York, NY, USA, 85-92.
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Fischer J, Cunningham D, Bartz D, Wallraven C, Bülthoff HH and Strasser W (May-2006) Measuring the Discernability of Virtual Objects in Conventional and Stylized Augmented Reality, 12. Eurographics Symposium on Virtual Environments (EGVE 06), ACM Press, New York, NY, USA, 53-61.
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Cunningham DW, Nusseck H-G, Teufel H, Wallraven C and Bülthoff HH (March-2006) A psychophysical examination of Swinging Rooms, Cylindrical Virtual Reality setups, and characteristic trajectories, IEEE Virtual Reality Conference 2006, IEEE, Piscataway, NJ, USA, 111-118.
Cooke T, Steinke F, Wallraven C and Bülthoff HH (August-2005) A similarity-based approach to perceptual feature validation, 2nd Symposium on Applied Perception in Graphics and Visualization (APGV 2005), ACM Press, New York, NY, USA, 59-66.
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Wallraven C, Breidt M, Cunningham D and Bülthoff HH (August-2005) Psychophysical evaluation of animated facial expressions, 2nd Symposium on Applied Perception in Graphics and Visualization (APGV 2005), ACM Press, New York, NY, USA, 17-24.
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Cooke T, Wallraven C and Bülthoff HH (July-2005) A Comparison of Visual and Haptic Object Representations Based on Similarity, 9th International Conference on Information Visualisation (IV '05), IEEE Computer Society, Los Alamitos, CA, USA, 33-40.
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Kleiner M, Wallraven C, Breidt M, Cunningham DW and Bülthoff HH (December-2004) Multi-viewpoint video capture for facial perception research, Workshop on Modelling and Motion Capture Techniques for Virtual Environments (CAPTECH 2004), 55-60.
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Caputo B, Wallraven C and Nilsback ME (December-2004) Object Categorization via Local Kernels, 17th International Conference on Pattern Recognition (ICPR 2004), IEEE Computer Society, Los Alamitos, CA, USA, 132-135.
Cunningham DW, Kleiner M, Wallraven C and Bülthoff HH (August-2004) The components of conversational facial expressions, 1st Symposium on Applied Perception in Graphics and Visualization (APGV 2004), ACM Press, New York, NY, USA, 143-149.
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Wallraven C, Cunningham DW, Breidt M and Bülthoff HH (August-2004) View dependence of complex versus simple facial motions, 1st Symposium on Applied Perception in Graphics and Visualization (APGV 2004), ACM Press, New York, NY, USA, 181.
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Wallraven C, Schwaninger A and Bülthoff HH (June-2004) Learning from Humans: Computational Modeling of Face Recognition, Early Cognitive Vision Workshop (ECVW 2004), 1-4.
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Wallraven C, Caputo B and Graf ABA (October-2003) Recognition with Local Features: the Kernel Recipe, Ninth IEEE International Conference on Computer Vision (ICCV 2003), IEEE Computer Society, Los Alamitos, CA, USA, 257-264.
Breidt M, Wallraven C, Cunningham DW and Bülthoff HH (September-2003) Combining 3D Scans and Motion Capture for Realistic Facial Animation In: Eurographics 2003, , 24th Annual Conference of the European Association for Computer Graphics, Eurographics Association, Aire-la-Ville, Switzerland, 63-66.
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Cunningham DW, Breidt M, Kleiner M, Wallraven C and Bülthoff HH (September-2003) The inaccuracy and insincerity of real faces, 3rd IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP 2003), Acta Press, Anaheim, CA, USA, 7-12.
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Cunningham DW, Breidt M, Kleiner M, Wallraven C and Bülthoff HH (May-2003) How believable are real faces? Towards a perceptual basis for conversational animation, 16th International Conference on Computer Animation and Social Agents (CASA 2003), IEEE, Los Alamitos, CA, USA, 23-29.
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Wallraven C, Schwaninger A, Schumacher S and Bülthoff HH (November-2002) View-based recognition of faces in man and machine: Re-visiting Inter-Extra-Ortho In: Biologically Motivated Computer Vision, , Second International Workshop on Biologically Motivated Computer Vision (BMCV 2002), Springer, Berlin, Germany, 651-660, Series: Lecture Notes in Computer Science ; 2525.
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Bülthoff HH, Wallraven C and Graf A (August-2002) View-based dynamic object recognition based on human perception, 16th International Conference on Pattern Recognition (ICPR 2002), IEEE, Piscataway, NJ, USA, 768-776.
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Wallraven C and Bülthoff HH (December-2001) Automatic acquisition of exemplar-based representations for recognition from image sequences, CVPR 2001 Workshop on Models versus Exemplars in Computer Vision, 1-9.
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Wallraven C and Bülthoff HH (December-2001) View-based recognition under illumination changes using local features, CVPR 2001 Workshop on Identifying Objects Across Variations in Lighting: Psychophysics and Computation, 1-8.
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Wallraven C and Bülthoff HH (September-2001) Acquiring Robust Representations for Recognition from Image Sequences In: Pattern Recognition, , 23rd DAGM Symposium, Springer, Berlin, Germany, 216-222, Series: Lecture Notes in Computer Science ; 2191.
Wallraven C, Blanz V and Vetter T (September-1999) 3D-reconstruction of faces: Combining stereo with class-based knowledge In: Mustererkennung 1999, , 21. DAGM-Symposium (DAGM 1999), Springer, Berlin, Germany, 405-412, Series: Informatik aktuell.
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Contributions to books (5):

Bülthoff HH, Wallraven C and Giese MA: Perceptual Robotics, 2095-2114. In: Springer Handbook of Robotics: Part G, (Ed) B. Siciliano, Springer, Berlin, Germany, (2016).
Bülthoff HH, Cunningham DW and Wallraven C: Dynamic Aspects of Face Processing in Humans, 575-596. In: Handbook of Face Recognition, (Ed) S.Z. Li, Springer, London, UK, (2011).
Wallraven C and Bülthoff HH: Multimodal Categorization, 488-501. In: Object Categorization: Computer and Human Vision Perspectives, (Ed) S.J. Dickinson, Cambridge University Press, Cambridge, UK, (2009).
Bülthoff HH, Wallraven C and Giese MA: Perceptual Robotics, 1481-1498. In: Springer Handbook of Robotics: Part G, (Ed) B. Siciliano, Springer, Berlin, Germany, (May-2008).
Schwaninger A, Wallraven C, Cunningham DW and Chiller-Glaus SD: Processing of facial identity and expression: a psychophysical, physiological, and computational perspective, 321–343. In: Understanding Emotions, (Ed) S. Anders, Elsevier, Amsterdam, The Netherlands, (2006).

Technical reports (3):

Kleiner M, Wallraven C and Bülthoff HH: The MPI VideoLab: A system for high quality synchronous recording of video and audio from multiple viewpoints, 123, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, (May-2004).
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Graf M, Schwaninger A, Wallraven C and Bülthoff HH: Psychophysical results from experiments on recognition & categorisation, IST-2000-29375, Fachhochschule Nordwestschweiz, Information Society Technologies Programme, Cognitive Vision Systems, (November-2002).
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Last updated: Monday, 22.05.2017