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CVPR
2009
IEEE

A Projective Framework for Radiometric Image Analysis

11 years 9 months ago
A Projective Framework for Radiometric Image Analysis
Different materials reflect light in different ways, and reflectance interacts with shape, lighting, and viewpoint to determine an object’s image. Common materials exhibit diverse reflectance effects, and this is a significant source of difficulty for radiometric image analysis. One strategy for dealing with this diversity is to build computational tools that exploit reflectance symmetries, such as reciprocity and isotropy, that are exhibited by broad classes of materials. In this paper, we advocate the real projective plane as a tool for representing and exploiting these symmetries. In this approach, each point in the plane represents a surface normal that is visible from a fixed viewpoint, and reflectance symmetries are analyzed in terms of the geometric structures that they induce. We provide an overview of these structures and explore applications to both calibrated and uncalibrated photometric stereo.
Ping Tan (National University of Singapore), Todd
Added 05 May 2009
Updated 10 Dec 2009
Type Conference
Year 2009
Where CVPR
Authors Ping Tan (National University of Singapore), Todd Zickler (Harvard University)
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