Cornell University Program of Computer Graphics
Image-based brdf measurement.Stephen R. Marschner, Eric P. F. Lafortune, Stephen H. Westin, , Kenneth E. Torrance, and Donald P. Greenberg.
Technical report PCG-99-1, Program of Computer Graphics, Cornell University, Jan 1999.
We present a new image-based process for measuring surface reflectance rapidly, completely, and accurately. Requiring only a digital camera, a light source, and a convex curved test sample, our method can measure the BRDF with high resolution and accuracy over a very large domain of illumination and reflection directions. We have verified our measurements both by tests of internal consistency and by comparison against measurements made using a gonioreflectometer.
This paper is available as a PDF file MLW+99.pdf (2.3M).