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：2007
卷号：XXXVI-3/W49B
页码：31-34
出版社：Copernicus Publications
摘要：Aerial photographs have been evaluated manually by the operators for the extraction of the vector data to produce photogrammetric maps. In the recent years the developments, in the photogrammetry, provides to perform these extraction processes automatically. In this study, a new semi-automatic feature extraction approach, based on the segmentation of the images using color-differences of the pixels and the propogation of fronts by the Level Set algorithms, is developed. An object-oriented application software is also developed to test the capabilities of the developed method. Some semi-automatic feature extraction applications are made by the help of the developed software using 1:4000 and 1:35000 scale black/white aerial photographs for determining the capabilities of this method. The results of the tests show that this method can be used for the extraction of some features from aerial photographs for GIS and the production of the photogrammetric maps
关键词：Photogrammetry; automatic feature extraction; semi-automatic digitizing; image segmentation; level set algorithms; ; conversion from raster to vector
