Coniferous Canopy BRF Simulation Based on 3-D Realistic Scene  

作　　者：WANG Xin-yun GUO Zhi-feng QIN Wen-han SUN Guo-qing 

机构地区：[1]Key Lab for Restoration and Reconstruction of Degraded Ecosystem in North-Western China ofMinistry of Education, Ningxia University, Yinchuan 750021, China [2]Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China [3]SSAI/NASA GSFC, Greenbelt, MD 20771, USA [4]Department of Geography, University of Maryland, MD 20742, USA

出　　处：《光谱学与光谱分析》2011年第9期2495-2498,共4页Spectroscopy and Spectral Analysis

基　　金：the Chinese National Natural Science Foundation Project(40701124);the Chinese Hi-tech Research and Development Program Project(2006AA12Z114)

摘　　要：It is difficulties for the computer simulation method to study radiation regime at large-scale.Simplified coniferous model was investigated in the present study.It makes the computer simulation methods such as L-systems and radiosity-graphics combined method(RGM) more powerful in remote sensing of heterogeneous coniferous forests over a large-scale region.L-systems is applied to render 3-D coniferous forest scenarios,and RGM model was used to calculate BRF(bidirectional reflectance factor) in visible and near-infrared regions.Results in this study show that in most cases both agreed well.Meanwhile at a tree and forest level,the results are also good.It is difficulties for the computer simulation method to study radiation regime at large-scale. Simpli- fied coniferous model was investigated in the present study. It makes the computer simulation methods such as L-systems and radiosity-graphics combined method （RGM） more powerful in remote sensing of heterogeneous coniferous forests over a large-scale region. L-systems is applied to render 3-D coniferous forest scenarios, and RGM model was used to calculate BRF （bidirectional reflectance factor） in visible and near-infrared regions. Results in this study show that in most cases both agreed well. Meanwhile at a tree and forest level, the re- suits are also good.

关 键 词：BRF RGM model L-SYSTEMS 

分 类 号：TP701[自动化与计算机技术—检测技术与自动化装置]