Title :
Study on robustness of BRDF model parameter estimation
Author :
Susaki, Junichi ; Hara, Keitarou ; Park, JongGeol ; Yasuda, Yoshizumi ; Kajiwara, Koji ; Honda, Yoshiaki
Author_Institution :
Tokyo Univ. of Inf. Sci., Chiba, Japan
Abstract :
The effect of Bidirectional Reflectance Distribution Function (BRDF) is one of the most important factors to calibrate reflectance obtained from remotely sensed data. Because the measured BRDF data involve noise caused by various factors, BRDF model parameter estimation tends to become unstable. We examined parameter estimation robustness by using BRDF data measured at paddy fields in Japan, and experimental result of the estimation is described in this paper.
Keywords :
agriculture; geophysical techniques; light scattering; terrain mapping; vegetation mapping; 350 to 800 nm; BRDF; Japan; Oryza sativa; agriculture; bidirectional reflectance distribution function; crops; geophysical measurement technique; land surface; light scattering; model parameter estimation; paddy fields; reflectance; remote sensing; rice; robust model; robustness; terrain mapping; vegetation mapping; view angle; Bidirectional control; Distribution functions; Kernel; Least squares methods; MODIS; Parameter estimation; Reflectivity; Remote sensing; Robustness; Satellites;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1027253
