SIFT和相关系数在嫦娥一号月球影像匹配中的应用  

Application of SIFT and Correlation Coefficient in Chang'E-1 Lunar Image Matching

作　　者：贾博[1] 姜挺[1] 郭丽 龚辉[1] 曹帅玺 

机构地区：[1]信息工程大学测绘学院,河南郑州450052 [2]61363部队,陕西西安710054 [3]68011部队,甘肃兰州730020

出　　处：《测绘科学技术学报》2009年第5期363-366,共4页Journal of Geomatics Science and Technology

摘　　要：SIFT算法具有较强的匹配能力,能够处理两幅影像之间在发生平移、尺度、旋转、光照、视角等变化的情况下的匹配问题。利用SIFT算法进行影像匹配,根据匹配点计算两幅影像之间的仿射参数,将左影像上的格网映射到右影像作为初始点,然后使用相关系数测度在右影像上初始点邻域范围搜索匹配点。实验结果表明,该方法能够得到很好的匹配效果。The algorithm of SIFT has strong matching ability, and can deal with the matching problems with changes of translation, scale, rotation, illumination, and view between images, image matching was processed by using SIFT algorithm, affine parameters between images base of matching points were calculated, the grid on the left image was mapped into right image regard as initial points, then matching points in the neighbor range of initial points were searched by using correlation coefficient measure. Experiments demonstrate that it is feasible to use this algorithm in lunar image matching.

关 键 词：影像匹配 SIFT算法 最小二乘法 相关系数 三线阵CCD嫦娥一号 

分 类 号：P237[天文地球—摄影测量与遥感]