An LED-only BRDF measurement device

  title={An LED-only BRDF measurement device},
  author={Moshe Ben-Ezra and Jiaping Wang and Bennett Wilburn and Xiaoyang Li and Le Ma},
  journal={2008 IEEE Conference on Computer Vision and Pattern Recognition},
Light emitting diodes (LEDs) can be used as light detectors and as light emitters. In this paper, we present a novel BRDF measurement device consisting exclusively of LEDs. Our design can acquire BRDFs over a full hemisphere, or even a full sphere (for the bidirectional transmittance distribution function BTDF), and can also measure a (partial) multi-spectral BRDF. Because we use no cameras, projectors, or even mirrors, our design does not suffer from occlusion problems. It is fast… 

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