Estimating Surface Normals from Spherical Stokes Reflectance Fields
ECCV Workshop on Color and Photometry in Computer Vision (CPCV) 2012
SIGGRAPH 2012 Talk/Poster
Giuseppe Claudio Guarnera    Pieter Peers*    Paul Debevec    Abhijeet Ghosh   
USC Institute for Creative Technologies    The College of WIlliam & Mary*

Estimating surface normals from Stokes parameters of specularly reflected incident spherical illumination. Surface normals inferred from circularly polarized illumination(c-d), and unpolarized illumination (e-f), compared to surface normals obtained from spherical gradient illumination (b).

We introduce a novel technique for estimating surface normals from the four Stokes polarization parameters of specularly reflected light under a single spherical incident lighting condition that is either unpolarized or circularly polarized. We illustrate the practicality of our technique by estimating surface normals under uncontrolled outdoor illumination from just four observations from a fixed viewpoint.


CPCV 2012 Paper
CPCV2012.pdf, (5.35MB)

SIGGRAPH 2012 Poster
SIGGRAPH2012_Poster.pdf, (14MB)

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