================== CALL FOR PAPER =================== PACV 2007: IEEE Computer Society Workshop on Photometric Analysis For Computer Vision (in conjunction with ICCV 2007, Rio de Janeiro, Brasil) http://pacv2007.inrialpes.fr/ ====================================================== Scope: The way an image looks like depends on many factors, including geometry, illumination and reflectance properties of the objects. For the transparent or translucent objects, or for the objects composed by multiple coatings, the factors are even more numerous (refraction, subsurface scattering,...). The laws combining these components are very diverse and complex. This complexity makes computer vision tasks even more difficult and practically causes the failure of methods based on too simple models. A typical example could be the troubles caused by the specularities in the stereovision problem; proposed methods usually assume that the scene in perfectly diffuse. Feature tracking/matching is another example since the photometric appearance of the objects can change when they/the camera move/es. From the theoretical as well as from the computational point of view, a better understanding and handling of these factors and of their combinations should allow to be robust to the photometric effects. In fact this allows us to go beyond: it allows not only to overcome the inconveniences problems they involve but it can also be an information/constraints source which can be practically exploited in computer vision tasks. We can think for example about the shading and shadow information. More synthetically, the topics of interest include, but are not limited to, the following: * Theoretical Analysis: - image invariants, - characterization of ambiguities (e.g. viewpoint-lighting ambiguity, characterization of the solutions of a problem). - number of images required for solving computer vision tasks. * Insensitivity to the appearance changes: - image invariants. - taking into account appearance changes in models (e.g. in 3D reconstruction, feature matching/tracking, segmentation). * Separation/reconstruction: - recovering reflectance properties and lighting conditions for realistic changes of point of view - improvement of images: removing highlights, religthing, modification of the albedo (application: advertisement)... * Exploitation: - exploitation of shading and shadows (e.g. in Shape from Shading, in stereovision when point correspondance is difficult or impossible) - exploitation of the appearance changes (e.g. in photometric stereo) The spectrum of considered applications covers shape estimation, radiance/lighting estimation, feature extraction, feature matching/tracking, object tracking/recognition, segmentation, recovery of complete and high quality models,... See http://pacv2007.inrialpes.fr/Scope.html for more details. ====================================================== * The workshop proceedings will be published by the IEEE Computer Society. * Selected Papers from the Workshop will appear in a special issue of the International Journal of Computer Vision * Two Prizes are going to be awarded to the best papers of the workshop: - A Best Paper Award: $1,500.00 (all the papers submitted are candidat) - A Best Student Paper Award: $1,000.00 (only papers of which the first author is a PhD candidate can apply to this award) * Deadline for paper submission: August 3rd, 2007 ====================================================== List of Important Dates: Intention of submission July 30th, 2007 Deadline for paper submission => there will be no deadline extension ! ** August 3rd, 2007 - 11:00 AM UTC/GMT +1h ** Notification of acceptance September 14th 2007 Camera-ready copies due to September 30th, 2007 Conference dates October 14th-21th, 2007 Journal submission January, 2008. ====================================================== Organizing Committee: Peter Belhumeur, Program Chair, Columbia University, USA Katsushi Ikeuchi, Program Chair, University of Tokyo, Japan Emmanuel Prados, Organizer & General Co-Chair, INRIA, France Stefano Soatto, General Chair, UCLA, USA Peter Sturm, Organizer & Program Chair, INRIA, France Program Committee: Edward H. Adelson Ronen Basri Daniel Cremers Mark S. Drew Graham Finlayson David Forsyth William T. Freeman Theo Gevers Edwin R. Hancock Anders Heyden David W. Jacobs Jan J. Koenderink Ryszard S. Kozera David J. Kriegman Kyros Kutulakos Mike Langer Sang Wook Lee Hendrik Lensch Steve Lin Shree K. Nayar Marc Pollefeys Jean Ponce Yoichi Sato Steven Seitz Jan Erik Solem Todd Zickler ====================================================== Keywords: - Photometry, illumination and reflectance, non Lambertian reflection, specularities, ambient lighting, interreflection, vignetting, - Transparent objects, semi-transparency, refraction, subsurface scattering, - Colour constancy, chromaticity, multicolored illuminations, - Ambiguities, image invariants, - Model-based vision... ====================================================== For more information please the workshop's web site: http://pacv2007.inrialpes.fr/ ====================================================== Peter Belhumeur, Katsushi Ikeuchi, Emmanuel Prados, Stefano Soatto, Peter Sturm. General co-chairs and Organizers =====================================================================