三峡库区遥感三维立体仿真系统及其应用

基于长江中上游(江津—宜昌段)地质调查项目完成的遥感影像、DEM、地质专题数据,构建了三维仿真系统。本系统通过对库区高精度三维地形地貌仿真和三维环境下的遥感影像、专题数据的一体化管理,实现了三维环境下的地质灾害人机交互遥感解译,以及在三维环境下的GIS空间分析和专业分析功能。通过两期三维场景对比、加载不同时期的影像数据、实时联动显示,直观清晰地开展研究区地质灾害、地形地貌、库岸线变化分析对比。系统大幅度提高了地质灾害遥感解译精度和工作效率,具有一定实际应用价值。

Development and Application of a 3D Simulation System Based on Remotely Sensed Information Within Three Gorges Reservoir Area

the 3D simulation system consists of remote sensing image,DEM and geological data acquired from geological investigation between the middle and upper reaches of Yangzi River（Jiangjin-Yichang） was developed.By applying this system,the 3D terrain can be accurately simulated.Both the remote sensed data and various thematic data could be integrated to manage in the 3D environment.GIS spatial analysis functions and man-to-computer interactive interpretation on geo-hazards can be conducted.By comparing two scenes of 3D images,uploading image data at different time and conducting real-time display,the comparative analysis of geo-hazards,terrains and shoreline changes in study areas are clearly and directly conducted.The system substantially improves the accuracy and efficiency of remote sensing interpretation for geo-hazards,which has great potential for practical application.