Spectral Gradient: A Material Descriptor Invariant to Geometry and Incident Illumination.

Fri, 01 Jan 1999 00:00:00 +0100

Elli Angelopoulou, Sang Wook Lee, Ruzena Bajcsy:
Spectral Gradient: A Material Descriptor Invariant to Geometry and Incident Illumination. ICCV 1999: 861-867