1. Image-based bidirectional reflectance distribution function measurement
- Author
-
Marschner, Stephen R., Westin, Stephen H., Lafortune, Eric P. F., and Torrance, Kenneth E.
- Subjects
Reflectance -- Measurement ,Optics -- Research ,Astronomy ,Physics - Abstract
We present a new image-based process for measuring a surface's bidirectional reflectance rapidly, completely, and accurately. Requiring only two cameras, a light source, and a test sample of known shape, our method generates densely spaced samples covering a large domain of illumination and reflection directions. We verified our measurements both by tests of internal consistency and by comparison against measurements made with a gonioreflectometer. The resulting data show accuracy rivaling that of custom-built dedicated instruments. [C] 2000 Optical Society of America OCIS codes: 290.5820, 120.5820, 160.4760, 290.5880, 110.2960.
- Published
- 2000