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Testing reflectance models against radiance data
conference contribution
posted on 2004-09-20, 00:00 authored by Hossein Ragheb, Antonio Robles-KellyAntonio Robles-Kelly, Edwin R HancockWe describe an empirical investigation of departures from Lambert's law for rough and shiny surfaces. We commence by using a recently reported method to recover estimates of the surface radiance function for objects illuminated in the viewer direction. This method is nonparametric, and offers the advantage that it is simple to use since it does not require detailed camera calibration. We compare the radiance data with a number of phenomenological and physics-based reflectance models. The models studied include those of Oren-Nayar, Wolff and different variants of the Beckmann model. The main conclusion of the study is that among these models the best fit to the empirical data is found to be the Wolff model for smooth objects and the modified Beckmann model for rough objects.
History
Event
3DPVT 2004 3D Data Processing, Visualization, and Transmission. International Symposium (2nd : 2004 : Thessaloniki, Greece)Pagination
880 - 887Publisher
IEEE Computer SocietyLocation
Thessaloniki, GreecePlace of publication
Los Alamitos, Calif.Publisher DOI
Start date
2004-09-06End date
2004-09-09ISBN-10
0-7695-2223-8Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2004, IEEEEditor/Contributor(s)
Yiannis Aloimonos, Gabriel TaubinTitle of proceedings
3DPVT 2004 : Proceedings of the 2nd International Symposium on 3D Data Processing, Visualization and TransmissionUsage metrics
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