Investigation on the Torrance-Sparrow specular BRDF model

Author

Meister, Gerhard ; Wiemker, Rafael ; Monno, René ; Spitzer, Hartwig ; Strahler, Alan

Author_Institution

II. Inst. fur Experimentalphys., Hamburg Univ., Germany

Volume

4

fYear

1998

fDate

6-10 Jul 1998

Firstpage

2095

Abstract

To describe the directional reflectance characteristics of a specularly reflecting rough surface, Torrance and Sparrow (1967) developed a bidirectional reflectance distribution function (BRDF) model based on geometrical optics. In this study their model is confirmed by a ray-tracing-like simulation, using the same assumptions as in the analytical derivation. The authors also present a simple empirical function that captures the basic features of the analytical model quite well and has been used successfully in BRDF inversion problems including surfaces like roof cover materials and grass canopy

Keywords

ray tracing; reflectivity; remote sensing; Torrance-Sparrow specular BRDF model; analytical model; bidirectional reflectance distribution function; directional reflectance characteristics; empirical function; geometrical optics; grass canopy; inversion problems; ray-tracing-like simulation; remote sensing; roof cover materials; specularly reflecting rough surface; Analytical models; Geometrical optics; Light scattering; Optical scattering; Postal services; Reflectivity; Remote sensing; Rough surfaces; Solid modeling; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International

Conference_Location

Seattle, WA

Print_ISBN

0-7803-4403-0

Type

conf

DOI

10.1109/IGARSS.1998.703752

Filename

703752