Lee & Hayes, PLLC
Photodiode-based bi-directional reflectance distribution function (BRDF) measurement
Photodiode-based bi-directional reflectance distribution function (BRDF) measurement is described. Multiple photodiodes are distributed approximately symmetrically at a fixed distance from a surface to be measured. One or more of the photodiodes are directed to emit light, while readings are gathered from the other photodiodes that are not emitting light. The readings are processed based on previously measured calibration data to generate BRDF values.
Microsoft Corporation
G
G01N
inventional
Moshe Xiaoyang Yasuyuki Bennett S
Ben-Ezra Li Matsushita Wilburn