Title :
Definition and invariance properties of structured surface BRDF
Author :
Snyder, William C.
Author_Institution :
Alphatech Inc., Burlington, MA, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
The bidirectional reflectance distribution function (BRDF) is used to characterize the directional properties of surface reflectance, but the most recent standardized definition fails to address some important aspects for the structured and varying surfaces encountered in remote sensing. This paper proposes an updated definition of BRDF that is applicable for such surfaces. The updated definition then motivates an examination of the resulting measurement requirements and invariance properties. The conclusion is that structured surface BRDF can be defined in a consistent manner that is an intrinsic surface property, and it does exhibit the usual invariance properties associated with BRDF, such as reciprocity
Keywords :
geophysical techniques; remote sensing; terrain mapping; vegetation mapping; BRDF; bidirectional reflectance distribution function; definition; directional properties; geophysical measurement technique; intrinsic surface property; invariance; land surface; light scattering; optical imaging; remote sensing; structured surface BRDF; surface reflectance; terrain mapping; theory; vegetation mapping; Bidirectional control; Distribution functions; Extraterrestrial measurements; Land surface; NIST; Optical surface waves; Radiometry; Reflectivity; Remote sensing; Standardization;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2002.1010890
