以SRTM-DEM为控制的光学卫星遥感立体影像正射纠正
针对全球测图缺少统一的控制基准的问题,提出了利用SRTM-DEM作为控制基准,对光学卫星遥感影像进行正射纠正的方法。首先,对光学卫星影像构建的立体影像对进行自由网平差并制作DEM;然后,以SRTM-DEM作为控制,将DEM作为单元模型,进行独立模型法DEM区域网平差,获得单元模型的定向参数;最后,改正立体影像的成像几何模型参数,进行正射纠正。选取湖北咸宁和江西某地两个测区的资源三号数据进行试验,试验结果表明,资源三号正视全色影像的平面定向精度由12.93像素提高到6.85像素。...
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| Published in | 测绘学报 Vol. 45; no. 3; pp. 326 - 331 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国地质大学资源学院,湖北 武汉,430074%武汉大学测绘遥感信息工程国家重点实验室,湖北 武汉 430079
2016
国家测绘地理信息局卫星测绘应用中心,北京 100830%武汉大学遥感信息工程学院,湖北 武汉,430079 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
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| Summary: | 针对全球测图缺少统一的控制基准的问题,提出了利用SRTM-DEM作为控制基准,对光学卫星遥感影像进行正射纠正的方法。首先,对光学卫星影像构建的立体影像对进行自由网平差并制作DEM;然后,以SRTM-DEM作为控制,将DEM作为单元模型,进行独立模型法DEM区域网平差,获得单元模型的定向参数;最后,改正立体影像的成像几何模型参数,进行正射纠正。选取湖北咸宁和江西某地两个测区的资源三号数据进行试验,试验结果表明,资源三号正视全色影像的平面定向精度由12.93像素提高到6.85像素。 |
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| Bibliography: | ZHANG Hao ,ZHANG Guo ,JIANG Yonghua ,WANG Taoyang（1. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China; 2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China; 3. Satellite Surveying and Mapping Application Center, State Bureau of Surveying, Mapping and Geoinforrnation, Beijing ]00830, China; 4. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China） 11-2089/P global mapping; stereo images pair; independent model; DEM block adjustment; image orientation accuracy In response to the problem of lacking of control base in the project of global mapping,a method to ortho-rectify satellite remote sensing images is proposed,which uses SRTM-DEM as control base.First,stereo images pairs which compose of optical images are adjusted by block adjustment of free networks and DEMs are extracted.Then SRTM-DEM is used as control base,the single DEM is the cell model and DEM block adjustm |
| ISSN: | 1001-1595 |