A MULTI-LEVEL RADIATION TRANSFER SOLUTION FOR 3D LANDSCAPE

被引：0

作者：

Huang, Huaguo ^{[1
]}

机构：

[1] Beijing Forestry Univ, Minist Educ, Key Lab Silviculture & Conservat, Beijing 100083, Peoples R China

来源：

2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年

关键词：

multi-level radiosity; HRAD; fragmentation landscape; topographical relief; MODEL; CANOPY; SIMULATION; IMAGES; FOREST;

D O I：

10.1109/IGARSS.2011.6048942

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A multi-level radiation transfer method was proposed to simulate directional reflectance and images for 3D landscapes. This study emphasizes a unified framework to generate multi-level structures from leaf to landscape. Radiosity is adapted to improve calculation efficiency. The program was preliminarily evaluated and further applied to analyze how directional reflectance varies with fragmentation and terrain relief. Results indicate that grass-dominated landscapes are more likely to be affected on directional reflectance feature by fragmented forest patches. Also, topographical relief can strongly enhance the hotspot effect and directional variations in the solar principal plane.

引用

页码：261 / 264

页数：4

共 11 条

[1] Nonlinear mixture model of mixed pixels in remote sensing satellite images based on Monte Carlo simulation [J].