文章基本信息

标题：Parameter estimation for a marked point process within a framework of multidimensional shape extraction from remote sensing images
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作者：Saima Ben Hadj ; Florent Chatelain ; Xavier Descombes 等
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：2010
卷号：XXXVIII - Part 3A
页码：1-6
出版社：Copernicus Publications
摘要：Previously, an estimation method based on the Stochastic Expectation-Maximization algorithm was studied and proved its relevance for estimating the parameters of a marked point process model in order to achieve unsupervised feature extraction from remote sensing images. This method was only applied to a simple model of a marked point process of circles. In this paper, we extend the proposed estimation method to multidimensional shapes such as ellipses and rectangles. Different types of objects have been extracted: .amingos, tree crowns, boats, and building footprints. Furthermore, some prior constraints corresponding to the alignment of boats as well as the alignment of buildings are introduced
关键词：shape extraction; marked point process; RJMCMC; simulated annealing; SEM