Title :
Modeling bidirectional radiance distribution functions of conifer canopies using 3-D graphics
Author :
Burnett, C.N. ; Hay, G.J. ; Niemann, K.O. ; Goodenough, D.G.
Author_Institution :
Dept. of Geogr., Victoria Univ., BC, Canada
Abstract :
Bidirectional radiance functions (BRF) are estimated for two age-different conifer canopies using field mensuration data, a geometric-optical canopy reflectance (CR) model, ray-tracing software and imaging spectrometer data. The anisotropy or I-BRF (bidirectional change with reference to change in illumination direction, view direction constant) of two age-different stands are compared. Comments on the versatility of this BRF estimation methodology are offered
Keywords :
forestry; geophysical techniques; geophysics computing; remote sensing; BRDF; BRF; bidirectional radiance distribution function; bidirectional radiance functions; canopy; conifer forest; forestry; geometric-optical canopy reflectance model; geophysical measurement technique; optical imaging; ray-tracing software; remote sensing; three dimensional graphics; tree age; vegetation mapping; Anisotropic magnetoresistance; Computer graphics; Distribution functions; Layout; Lighting; Ray tracing; Reflectivity; Roentgenium; Solid modeling; Tree graphs;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615804
