Multiplexed Illumination for Measuring BRDF Using an Ellipsoidal Mirror and a Projector

Measuring a bidirectional reflectance distribution function (BRDF) requires long time because a target object must be illuminated from all incident angles and the reflected light must be measured from all reflected angles. A high-speed method is presented to measure BRDFs using an ellipsoidal mirror and a projector. The method can change incident angles without a mechanical drive. Moreover, it is shown that the dynamic range of the measured BRDF can be significantly increased by multiplexed illumination based on the Hadamard matrix.

• Type: Conference
• Year: 2007
• Where: ACCV
• Authors: Yasuhiro Mukaigawa, Kohei Sumino, Yasushi Yagi
• Keywords: ACCV 2007, Bidirectional Reflectance Distribution, Computer Vision, Ellipsoidal Mirror, Incident Angles