Abstract 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.
Multiplexed Illumination for Measuring BRDF Using an Ellipsoidal Mirror and a Projector
Computer Vision – ACCV 2007 ; 4 ; 246-257
Lecture Notes in Computer Science ; 4844 , 4
2007-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
Target Object , Mechanical Drive , Lighting Direction , Hadamard Matrix , Shutter Speed Computer Science , Image Processing and Computer Vision , Computer Imaging, Vision, Pattern Recognition and Graphics , Pattern Recognition , Artificial Intelligence (incl. Robotics) , Biometrics , Algorithm Analysis and Problem Complexity
Ellipsoidal mirror reflectometer.
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