实景三维高山地地区DSM自动匹配效果对比分析

Comparative analysis of DSM automatic matching effect in real 3D high mountain area

为探索研究在高山地地区选择使用数字表面模型(DSM)基础数据的最优方案,推进实景三维中国建设项目(简称“实景三维项目”)顺利进行提供参考依据。本文利用高分七号卫星影像,针对项目DSM自动匹配所常用的吉威公司影像处理系统(CIPS)和天宝影像处理软件(INPHO)两款主要软件,对高山地地区整体匹配效果及高山地中的冰雪、阴影弱纹理区域的匹配效果进行试验。通过对比分析,发现INPHO匹配的整体效果和在冰雪区域的表现更适合本项目实际生产,而在阴影区域二者均有一定的粗差,需要人工交互编辑处理。

In order to explor and study the optimal scheme of using digital surface model(DSM)basic data in high mountainous areas and provides a reference basis for promoting the smooth progress of the real three-dimensional(3D)China construction project(referred to as"real 3D Project").Based on the Gaofen-7 satellite Image,the overall matching effect of the high mountain area and the matching effect of the snow and ice in the high mountain area and the shadow weak texture area were tested that used Cluster image processing system(CIPS)and Trimble Inpho(INPHO),two major software commonly for automatic matching of project DSM.Through comparative analysis,it was found that the overall effect of INPHO matching and the performance in the snow and ice region were more suitable for the actual production of the project,while in the shadow area,both of them had certain coarse errors that needed manual interactive editing.