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 变化检测技术是遥感应用领域的一个重要研究方向。本文首先对常见的变化检测方法进行了概括性介绍与优缺点评述,并分析了当前变化检测方法中存在的普遍问题;并在此基础上,展望了一种基于影像分割的变化检测方法:在仅对其中一个时相影像进行分割的基础上,建立了两时相影像间的对应图斑单元与变化判别规则,实现图斑单元间的直接比较来提取变化信息。并分析了基于分割的变化检测方法与像素级变化检测方法相比具有的优势。 更多还原

【Abstract】 Change detection is one of the important topics in remote sensing application field.In this paper,the main methods applied in change detection were firstly introduced and evaluated.The problems existing in the currents techniques were analyzed,and then a novel image segmentation based change detection approach was proposed.In this method,one of the two images is firstly segmented into homogeneous regions,and then the second image is divided into regions using the same polygons generated in the f... 更多还原