| SAR主从影像的几何配准 |
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| 引用本文： | 廖强强,张立亭,刘洋.SAR主从影像的几何配准[J].测绘与空间地理信息,2016(4):28-31. |
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| 作者姓名： | 廖强强 张立亭 刘洋 |
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| 作者单位： | 1. 东华理工大学测绘工程学院，江西南昌330013; 江西省数字国土重点实验室，江西南昌330013;2. 东华理工大学测绘工程学院，江西南昌330013; 江西省数字国土重点实验室，江西南昌330013; 流域生态与地理环境监测国家测绘地理信息局重点实验室，江西南昌330013;3. 东华理工大学测绘工程学院,江西南昌,330013 |
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| 基金项目： | 江西省自然科学基金项目(20132BAB201049)资助 |
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| 摘 要： | 对于SAR主影像(master)和从影像(slave)的几何配准,文中采用三次基本多项式与斜距-多普勒定位模型,解算出主影像中心像素点在从影像中的同名点,最后得出主从影像中心像素点的初级配准偏移量。本文以上海地区ERS-1影像数据为例,在Matlab环境下,对SAR主从影像的几何配准偏移量进行解算。实验结果表明,采用文中初级配准方法,初级配准相对精度可达到0.1%~0.9%。
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| 关 键 词： | SAR影像 轨道拟合 R-D模型 几何配准 |
The Geometric Registration of SAR Master-slave Image |
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| LIAO Qiang-qiang;ZHANG Li-ting;LIU Yang.The Geometric Registration of SAR Master-slave Image[J].Geomatics & Spatial Information Technology,2016(4):28-31. |
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| Authors: | LIAO Qiang-qiang;ZHANG Li-ting;LIU Yang |
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| Institution: | LIAO Qiang-qiang;ZHANG Li-ting;LIU Yang;Faculty of Geomatics,East China Institute of Technology;Jiangxi Province Key Lab for Digital Land;Key Laboratory of Watershed Ecology and Geographical Environment Monitoring Nation Administration of Surveying,Mapping and Geoinformation; |
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| Abstract: | Using the cubic polynomial and Slant Range -Doppler positioning model , this paper approached a method of registration of SAR master-slave images.With which, the match point of the main image center pixel points will be calculated out , and the initial registration offset of the master -slave image can be achieved accordingly .An application of the ERS-1 image data of Shanghai area is taken as an example .The geometric registration offset of SAR master -slave images is computed out in MATLAB .The result shows that by adopting this method of registration , the relative accuracy of initial registration can reach up to 0.1%~0.9%. |
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| Keywords: | SAR images orbit fit R-D model geometrical registration |
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