基于高景一号影像DSM自动匹配效果研究与对比

Research and Comparison of DSM Automatic Matching Result Based on SuperView-1 Satellite Imagery

高景一号为高分辨率、高精度数字表面模型(DSM)的自动提取提供了重要数据来源。本研究利用高景一号数据,采用常用的3种国产测绘生产软件自动匹配DSM,并对其匹配效果进行对比分析。实验结果表明,采用CloudTubeSat软件和CIPS软件整体的匹配结果较好,光滑噪声点较少。其中,采用CloudTubeSat软件在山地中匹配效果较好,采用CIPS软件在平地、地貌琐碎区匹配效果较好。3种软件对困难地区的匹配效果较差,均存在粗差、地貌丢失等现象。因此,在后续研究或生产中,可针对不同场景和地形地貌特点,选择合适的匹配方法和软件。

SuperView-1 is an important data source for automatic extraction of high-resolution and high-precision digital surface model(DSM).In this study,Comparison of DSM automatic matching result based on SuperView-1 with three kinds of domestic surveying and mapping production software,and compare and analyze the matching effect.The experimental results show that the matching results of CloudTubeSat and CIPS software are better and there are fewer smooth noise points.Among them,CloudTubeSat software has a better matching effect in mountainous areas,and CIPS software has a better matching effect in flat areas and trivial areas.The matching effect of the three softwares in difficult areas is poor,and there are gross errors,lost landforms and other phenomena.Therefore,in the follow-up research or production,suitable matching methods and software can be selected according to different scenes and landform characteristics.