Ron Dror, Ted Adelson, Marc Talusan, Rebecca Loh The appearance of a material depends heavily on its illumination. In the real world, illumination may be varied and complex. The following photographs demonstrate this point and provide a small test database for algorithms which identify surface reflectance under unknown, real-world illumination. Our goals are (1) to allow computer vision systems to recognize materials effectively, (2) to capture surface reflectance properties from photographs for use in computer graphics models, and (3) to build shape and motion estimation algorithms which work for surfaces of unknown reflectance.
Each row shows the following spheres, in order: black matte, black shiny, blue, chrome, gold, gray shiny, white matte, white reflective (shiny), white pearly, red (of course, you can't see the colors in these gray-scale images).
Illumination: Office scene
Illumination: Kendall Food Court
Illumination: Adelson Lab
Illumination: NE20 4th floor lobby
Illumination: Street scene
Illumination: By a window
Illumination: Under a desklamp
