Abhijeet Ghosh, Tongbo Chen, Pieter Peers, Cyrus A. Wilson, and Paul Debevec,
"Estimating Specular Roughness and Anisotropy from Second Order Spherical Gradient Illumination",
Computer Graphics Forum, Volume 28, Issue 4,
pages 1161-1170,
2009,
@article{Ghosh:2009:ESR,
author = {Ghosh, Abhijeet and Chen, Tongbo and Peers, Pieter and Wilson, Cyrus A. and Debevec, Paul},
title = {Estimating Specular Roughness and Anisotropy from Second Order Spherical Gradient Illumination},
year = {2009},
pages = {1161--1170},
journal = {Computer Graphics Forum},
volume = {28},
number = {4},
doi = {http://dx.doi.org/10.1111/j.1467-8659.2009.01493.x},
}