An LED-only BRDF measurement device

Author

Ben-Ezra, Moshe ; Wang, Jiaping ; Wilburn, Bennett ; Li, Xiaoyang ; Ma, Le

Author_Institution

Microsoft Res. Asia, Beijing

fYear

2008

fDate

23-28 June 2008

Firstpage

1

Lastpage

8

Abstract

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, significantly simpler, and more compact than existing BRDF measurement designs.

Keywords

light emitting diodes; optical variables measurement; LED-only BRDF measurement device; bidirectional reflectance distribution function; bidirectional transmittance distribution function; light detectors; light emitters; light emitting diodes; multi-spectral BRDF; Asia; Cameras; Distribution functions; Dynamic range; Light emitting diodes; Lighting; Mirrors; Optical surface waves; Surface waves; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Vision and Pattern Recognition, 2008. CVPR 2008. IEEE Conference on

Conference_Location

Anchorage, AK

ISSN

1063-6919

Print_ISBN

978-1-4244-2242-5

Electronic_ISBN

1063-6919

Type

conf

DOI

10.1109/CVPR.2008.4587766

Filename

4587766