Coniferous Canopy BRF Simulation Based on 3-D Realistic Scene
WANG Xin-yun1,2, GUO Zhi-feng2, QIN Wen-han3, SUN Guo-qing1,4
1. Key Lab for Restoration and Reconstruction of Degraded Ecosystem in North-Western China of Ministry 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
Coniferous Canopy BRF Simulation Based on 3-D Realistic Scene
WANG Xin-yun1,2, GUO Zhi-feng2, QIN Wen-han3, SUN Guo-qing1,4
1. Key Lab for Restoration and Reconstruction of Degraded Ecosystem in North-Western China of Ministry 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
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.
关键词：BRF;RGM model;L-systems
Abstract：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.
