Title :
An alternative method to compute the component fractions in the geometrical optical model: visual computing method
Author :
Su, Hong-Bo ; Zhang, Ren-Hua ; Tang, Xin-Zhai ; Sun, Xiao-Min ; Zhu, Zhi-Lin ; Li, Zhao-Liang
Author_Institution :
Inst. of Geogr. Sci. & Natural Resources Res., Chinese Acad. of Sci., Beijing, China
fDate :
3/1/2003 12:00:00 AM
Abstract :
A method called visual computing was used to solve angular four-components´ proportions and directional vegetation cover fraction for discrete canopies and continuous row-planted plants. It proved effective to predict the angular characteristics on pixel scale. The method could be an alternative way to a classical solution of geometrical optical models. A visual computing method would be effective especially when the canopies´ spatial distribution and shapes were irregular and could not be described statistically.
Keywords :
geometrical optics; vegetation mapping; angular characteristics; angular four-component proportions; continuous row-planted plants; directional vegetation cover fraction; discrete canopies; geometrical optical model; irregular canopy shapes; quantitative remote sensing; spatial distribution; visual computing method; Geometrical optics; Land surface; Optical computing; Optical devices; Optical sensors; Remote sensing; Shape; Solid modeling; Sun; Vegetation;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2003.810207