近景摄影测量在目标监测中的应用  

The application of close range photogrammetry technique in target monitoring

作　　者：于景华 张帮基 于琳琳 YU Jinghua;ZHANG Bangji;YU Linlin(Guangzhou Sanhai Marine Engineering Surveying&Designing Company Limited,Guangzhou Guangdong 510300,China;South China Sea Marine Survey and Technology Center,Guangzhou Guangdong 510300,China;Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resources,Guangzhou Guangdong 510300,China;Highway Administration of Shenqiu County,Shenqiu Henan 466300,China)

机构地区：[1]广州三海海洋工程勘察设计有限公司,广东广州510300 [2]国家海洋局南海调查技术中心,广东广州510300 [3]自然资源部海洋环境探测技术与应用重点实验室,广东广州510300 [4]沈丘县公路管理局,河南沈丘466300

出　　处：《北京测绘》2023年第3期336-340,共5页Beijing Surveying and Mapping

基　　金：广东省自然资源厅2021年省级促进经济高质量发展专项(GDNRC[2021]36)。

摘　　要：本文主要介绍近景摄影测量技术中一种基于单应性矩阵进行的核线影像重采样过程,以及利用半全局匹配(SGM)算法进行核线影像匹配,在得到高精度的、密集的同名点后,通过前方交会的方法获取目标三维点云数据,然后对两期监测数据及全站仪测量数据进行对比分析,进而实现目标位移的监测研究,通过结果可知近景摄影测量能够满足目标监测的要求。希望本实验方法为今后的生产任务贡献一份微薄的力量。This paper mainly introduced the process of epipolar image resampling based on homography matrix in close range photogrammetry technique.The semi-global matching(SGM)technique was also applied to perform epipolar image matching to get high-precision and dense corresponding points.With these corresponding points,the target three-dimensional(3D)point cloud data could be obtained through forward intersection method.And then by the analysis of the monitoring data and the measured date acquired by total station,researchers could monitor and study the target displacement.The following conclusion was drawn from the results that close range photogrammetry technique could meet the needs of target monitoring.It was hoped that the experimental method in this paper could contribute to the productive tasks in the future.

关 键 词：近景摄影测量 核线重采样 半全局匹配 目标监测 

分 类 号：P237[天文地球—摄影测量与遥感]