| 高分辨率遥感影像基于仿射变换的严格几何模型 |
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| 引用本文： | 张剑清,张祖勋.高分辨率遥感影像基于仿射变换的严格几何模型[J].武汉大学学报(信息科学版),2002,27(6):555-559. |
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| 作者姓名： | 张剑清 张祖勋 |
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| 作者单位： | 武汉大学遥感信息工程学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家自然科学基金资助项目 ( 40 1710 81)，湖北省自然科学基金资助项目 ( 2 0 0 0J14 3) |
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| 摘 要： | 介绍了高分辨率遥感影像方位参数求解的严格几何模型，该模型采用了基于平行光投影的三步变换的方法，第一步是将三维空间经过相似变换缩小至影像空间，再将其以平行光投影至一个水平面上（仿射变换），最后将其变换至原始倾斜影像，同时对许多分辨率为10m,3m与1m的影像进行了试验，结果验证了新模型的正确性。
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| 关 键 词： | 遥感影像 参数计算 仿射变换 几何模型 |
| 文章编号： | 1000-050X(2002)06-0555-05 |
| 修稿时间： | 2002年8月2日 |
Strict Geometric Model Based on Affine Transformation for Remote Sensing Image with High Resolution |
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| ZHANG Jianqing,ZHANG Zuxun.Strict Geometric Model Based on Affine Transformation for Remote Sensing Image with High Resolution[J].Geomatics and Information Science of Wuhan University,2002,27(6):555-559. |
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| Authors: | ZHANG Jianqing ZHANG Zuxun |
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| Institution: | ZHANG Jianqing 1 ZHANG Zuxun 1 |
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| Abstract: | This paper proposes a strict geometric model of the calculation for the position and orientation parameters of the remote_sensing image with higher resolution.The method adopts threesteps of transformations based on parallel ray projection.The first step is reducing the three FK(W10?40ZQ]dimensional space to the image space by the similar transformation.Then,the small space is projected to the level plane,which passes the center of the image plane.Finally,the level image is transformed to the original declining image.Every step of the model is strict,and the map function of each transformation is the first order polynomials.The final calculation of the parameters is for the linear equations with good status.As a result,the problem of the relativity of image parameter calculation is solved completely.Some experiments are carried on for a lot of images with 10 m,3 m and 1 m resolution.All of the results are quite perfect.Thus,the validity of the strict geometric model has been verified. |
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| Keywords: | remote sensing image high resolution parameter calculation affine transformation strict geometric model |
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