Theory and Algorithms of Dsm Generation from Multi-line-array Images Matching

A new multiple images matching theory model is proposed in this paper to generate DSM from aerial three line array digital images. Through this model, multiple images (more than 2) can be matched simultaneously and the epipolar line constraint can be used indirectly. Theoretically, the occlusion and multiple solution problems, which are unavoidable in traditionally image matching process, can be greatly solved by this model. Based on the robust multi-image matching algorithms, intelligent DSM generation procedure is constructed, and some key techniques during the DSM generation process are investigated. Experiments prove that the DSM generation methods proposed in this paper can effectively generate reliable DSM form multi-line-array digital images.. At the end of this paper, problems remaining to be studied are presented. * Corresponding author. This is useful to know for communication with the appropriate person in cases with more than one author.