基于物方几何约束的多视匹配算法研究

摘要

影像匹配是航空影像数据自动空三处理的关键技术之一。为充分利用三线阵影像信息及纹理信息，文中针对ADS40影像采用一种利用像方和物方信息进行约束的多视匹配方法，此算法能同时处理3张及3张以上的影像，大大加快匹配效率，为自动空三提供有效的连接点及为提取DSM提供高精度密集匹配点。%Image matching is one of the key technologies of automatic aerial triangulation in processing aerial image data .To make full use of the image information and texture information of three‐line array images , this paper introduces a multi‐image method constrained by information of image and object space .T hree or more images can be simultaneously by this algorithm w hich improves the efficiency obviously so that a series of dense high‐accurate matching points can be provided for DSM extraction .