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：2008
卷号：XXXVII Part B3b
页码：731-734
出版社：Copernicus Publications
摘要：The Snakes or active contour models of feature extraction algorithm integrates both photometric and geometric constraints. It derives the feature of interest by minimizing the total energy of Snakes with an initial location of the feature. Linear features can be directly processed with either x or y collinearity equation under the model of generalized point photogrammetry. In this paper, a new approach of extracting 3D curves based on Snakes and generalized point photogrammetry is proposed. Firstly, curve feature is extracted based on parametric B-spline approximation and Snakes on a single image. The seed points of curve feature on other images are determined by matching corresponding points. Then the corresponding curves are extracted by Snakes. Finally, the 3D curve model can be achieved by generalized point photogrammetry. Experimental results show that the proposed approach is feasible for 3D curve extraction
