Columbia-Utrecht Reflectance and Texture Database
Researchers at Columbia University
and Utrecht University have
collaborated in an extensive
investigation of the
visual appearance of real-world surfaces.
This joint effort, sponsored in part
by REALISE of the European Commission,
the National
Science Foundation and by DARPA/ONR under
the MURI Grant No. N00014-95-1-0601
has resulted in 3 databases:
- BRDF (bidirectional reflectance distribution function) database
with
reflectance measurements for over 60 different
samples, each observed with over 200 different combinations
of viewing and illumination directions.
- BRDF parameter database
with fitting parameters
from two recent BRDF models: the
Oren-Nayar
model and the
Koenderink et al.
representation.
These BRDF parameters
can be directly used for both image analysis and image
synthesis.
- BTF (bidirectional texture function) database
with image textures from over 60 different
samples, each observed with over 200 different combinations
of viewing and illumination directions.
Each of these databases is made
publicly available for research
purposes.
For details
about the measurements, and fitting procedures
a technical report
and summary paper are provided.
Also see the following journal paper:
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