Elli Angelopoulou, Sang Wook Lee, Ruzena Bajcsy. Spectral Gradient: A Material Descriptor Invariant to Geometry and Incident Illumination. In ICCV. pages 861-867, 1999. [doi]
@inproceedings{AngelopoulouLB99,
title = {Spectral Gradient: A Material Descriptor Invariant to Geometry and Incident Illumination},
author = {Elli Angelopoulou and Sang Wook Lee and Ruzena Bajcsy},
year = {1999},
url = {http://computer.org/proceedings/iccv/0164/vol 202/01640861abs.htm},
researchr = {https://researchr.org/publication/AngelopoulouLB99},
cites = {0},
citedby = {0},
pages = {861-867},
booktitle = {ICCV},
}