Advanced Methods and Models for Describing Coating Appearance.
Advanced Methods and Models for Describing Coating
McKnight, M. E.; Martin, J. W.
Organic Coatings - Waterborne; High Solids; Powder
Coatings, 23rd International Conference. Proceedings
23. July 7-11, 1997, Athens, Greece, 307-319 pp, 1997.
coatings; appearance; BRDF; computer rendering; gloss;
microstructure; optical properties
The National Institute of Standards and Technology has
recently initiated a study to advance appearance
metrology. A systems approach which applies
technological advances in oprical metrology,
mathematical modeling, and computer rendering to the
development of new methods of appearance
characterization and to more accurate methods of
modeling the appearance of coatings and coated objects
will be used. Corresponding experimental and modeling
research activities will be conducted in four areas:
coating composition, microstructure of coating films,
reflectance properties, and appearance descriptions.
The parameterized mathematical models and computer
rendering, when coupled with advanced measurements, will
support the capability of researchers and engineers to
assess the contirbution of coating constituents to
appearance and help design coatings with appropriate
initial appearance and durability properties. This
paper presents an overview of the planned research.