| 基于角点检测的遥感图像几何质量评价方法 |
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| 引用本文： | 王明富,杨世洪,吴钦章.基于角点检测的遥感图像几何质量评价方法[J].测绘学报,2011,40(2):175-179. |
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| 作者姓名： | 王明富 杨世洪 吴钦章 |
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| 作者单位： | 中国科学院光电技术研究所 |
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| 摘 要： | 为分析图像压缩过程对遥感图像几何质量的影响,提出一种新的基于图像角点检测的图像几何质量评价方法.首先介绍经典Harris角点检测算法,然后针对Harris算法定位精度不高的缺点改进Harris算法:对角点响应函数进行曲面拟合后求拟合曲面极值点,以此作为图像亚像素级角点坐标,最后将改进的Harris算法应用到遥感图像几何...
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| 关 键 词： | 图像压缩 Harris角点检测 几何畸变数 角点漏检率 |
| 收稿时间： | 2009-11-26 |
| 修稿时间： | 2010-05-27 |
A Geometric Quality Assessment Algorithm of Remote Sensing Image Based on Corner Detection |
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| WANG Mingfu,YANG Shihong,WU Qinzhang.A Geometric Quality Assessment Algorithm of Remote Sensing Image Based on Corner Detection[J].Acta Geodaetica et Cartographica Sinica,2011,40(2):175-179. |
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| Authors: | WANG Mingfu YANG Shihong WU Qinzhang |
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| Institution: | WANG Mingfu1,2,YANG Shihong1,WU Qinzhang1 1.Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China,2.Graduate University,Beijing 100049 |
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| Abstract: | To study geometric quality influence of remote sensing image brought by image compressing system,a new image geometric quality assessment algorithm based on image corner is proposed.First,classic Harris corner detecting algorithm is introduced,then it is improved to solve its disadvantage of imprecise point location: fitting the surface of corner response function and evaluating peak location of the fitted surface to check the sub-pixel corner location.Finally,this algorithm is applied to geometric quality ... |
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| Keywords: | image compression Harris corner detection geometric aberration corner missing rate |
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