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A novel method for relative correction of a radiometric distortion image based on SIFT feature matching
Pages: 507-514
Year: Issue:  6
Journal: CAAI Transactions on Intelligent Systems

Abstract: 针对常规相对辐射校正方法对未配准的主从图像对校正效果欠佳的问题,在分析了辐射畸变图像的成因与特点以及相对校正的优势之后,提出了一种基于SIFT特征匹配的相对辐射校正算法.从SIFT特征的不变性出发,分别提取主从图像对的SIFT特征并进行匹配,对匹配点的灰度值进行最小二乘回归分析,得到线性变换系数,最后通过线性变换得到校正结果.实验结果表明,此方法能够有效地减小未配准主从图像对之间的辐射差异,并在复...
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