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：2004
卷号：XXXV Part B3
页码：446-450
出版社：Copernicus Publications
摘要：Active contour models are used extensively in image processing applications, including edge detection, shape modelling, segmenta- tion and in general to detect object boundaries. They are curves defined in the image domain that can move under the influence of in- ternal forces within the curve itself and external forces derived from the image data. Many versions and improvements have been proposed since then, in an effort to improve on several aspects of the original finite difference implementation. We present preliminary results of a wavelet based active contour model for detecting linear features in satellite images The method combines multi-scale decomposition and edge detection in a fast-converging iterative scheme. As an application, coastline retrieval from a SAR image is illustrated
