基于ERDAS的林业局3维虚拟现实系统的研究和实现——以黑龙江省清河林业局地形为例

Research and Implementation on the Three-dimensional Virtual Reality System Based on ERDAS——Take Qinghe Forestry Bureau in Heilongjiang Province as an Example

建立一个基于3维虚拟现实系统,动态交互的环境来显示、分析、处理多种地理数据,具有非常重要的意义。本研究以清河林业局为例,收集该区域的DEM数据、遥感数据,对DEM数据进行镶嵌,对遥感数据进行几何精校正和图像的增强处理,最终构建出清河林业局的3维虚拟现实系统。

It is very important to establish the three - dimensional spatial information based on the Virtual Reality System, which could display dynamic interactive environments ,analyze and deal with a variety of geographic data. In this paper,taking Qinghe forestry bureau as an example, the data of study region DEM and RS was collected, on this base and with the mosaic of DEM ,the image of study was geometric corrected and enhanced. At last, the Three - dimensional Virtual Reality System of Qinghe forestry bureau was built.