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New in 2008:
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Autotagging Facebook: Social Network Context Improves Photo Annotation to be
presented at the Internet Vision Workshop 2008. (with Zak Stone and Trevor Darrell). [Preprint]
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A Perception-based Color Space for Illumination-invariant Image Processing to be
presented at SIGGRAPH 2008. (With Hamilton Chong and Steven Gortler).
[Preprint]
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What do Color Changes Reveal about an Outdoor Scene? to be
presented at CVPR 2008. (With Kalyan Sunkavalli, Fabiano Romeiro, Wojciech Matusik and Hanspeter Pfister). [Preprint].
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Color Constancy Beyond Bags of Pixels to appear at CVPR 2008. (With Ayan Chakrabarti and Keigo Hirakawa). [Preprint]
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Dense Specular Shape from Multiple Specular Flows to appear at CVPR 2008. (With Yuriy Vasilyev, Yair Adato, and Ohad Ben-Shahar). [Preprint].
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Photometric Stereo with Non-parametric and Spatially-varying Reflectance to appear at CVPR 2008. (With Neil Alldrin and David Kriegman). [Preprint].
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Color Subspaces as Photometric Invariants accepted for publication in IJCV. (With Satya Mallick, David Kriegman and Peter Belhumeur). [Preprint].
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2007:
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Toward a Theory of Shape from Specular Flow. ICCV 2007. (With Yair Adato, Yuriy Vasilyev, and Ohad Ben-Shahar). [PDF].
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The von Kries Hypothesis and a Basis for Color
Constancy. ICCV 2007. (With Hamilton Chong
and Steven Gortler).
[PDF].
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Isotropy, Reciprocity and the GBR Ambiguity. CVPR 2007. (With Ping Tan, Satya
Mallick, David Kriegman, and Long Quan). [PDF].
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Some of this work is part of an ongoing project on appearance
capture that is being funded by an NSF CAREER award. For more
details, see the project
page.
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Photometric Invariants from Color Subspaces:
Pure (specular-free) diffuse information by simple projections in
color space. Applications include stereo, optical flow,
shape-from-shading, segmentation, etc.
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Specular/Diffuse Separation:
Separating reflection components using multi-scale erosion. Applications to dichromatic editing.
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Reflectance Sharing:
Image-based rendering from a sparse set of images.
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Helmholtz Stereopsis:
Recovering the shape of surfaces with non-specular, specular or arbitrary surface reflectance.
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