期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B5/1
页码：472-479
出版社：Copernicus Publications
摘要：The main task in photogrammetry is the reconstruction of three-dimensional objects - size, shape, position or geometric distance - from analog or digital images. In a first step the camera position and the orientation parameters are calculated from known objects within the image. The widespread procedure for solving the problem of image orientation and object reconstruction uses control points or free-form features. In the present paper object reconstruction and object orientation via contours are discussed. Points on the contour are used if a limited number of control points are accessible and measurements of additional control points lead to prohibitive efforts. For object reconstruction digital photogrammetry can be used, because lines detected automatically have to be identified with contours. In the first part of the paper the necessary mathematical and photogrammetric methods for the solution of the tasks are developed. The second part deals with the strong dependency between the goodness of the approximation for the points on the contour and the convergence
