根据中心像元与周围像元之间的邻近像元效应,提出了一种基于灰关联分析的多景遥感影像无缝拼接方法。该方法以影像重叠医域中心像元邻域作为参考序列与比较序列,利用斜率关联度计算两者之间的灰关联度,找到一条影像色调和纹理差异较小的拼接线,并对其两侧作加权灰度平滑处理,以消除拼接图像之间因色调差异造成的接缝效应。实验结果表明,该方法算法简单,易于实现,影像拼接质量较好。
This paper put forward a novel method using grey relational analysis for seamless mosaicking remote sensing ima- ges. First, the method regarded pixel neighboring sequence in overlapping area as referential sequence and compared sequence because of the relation of center point and neighboring points, then computed grey relational degree of referential sequence and compared sequence using slope relational degree, finally detected an optimal seam line which was less differences in color and texture between the images, and made gray-level smooth with the help of weighting on both sides of the seam line in order to eliminate the mosaicking seam caused by tone difference between the adjacent images to be mosaicked . The experimental re- sult indicates that the new method is very effective, simple, easy to realize and can gain more satisfying mosaicking images.