• 责任者：Li Zhengguo (Xi’an Institute of Geology and Minerals Resources ; Xi’an 710054 ; China) ; Zhang Maosheng
• 刊名：Hydrogeology and Engineering Geology
• 出版年：2011
• 卷期：38(1)
• 关键词：遥感 ; remote sensing
• 页码：p.128-132
• 图表：5 illus., 10 refs.
• 分类号：1600
• issnNo：ISSN1000-3665
• isbnNo：CN11-2202/P

It is an important aspect of studying hazard-affected body of geological hazards. Extracting surface feature automatically based on high-resolution remote sensing image will be an important way to distinguish hazard-affected body of geological hazards. On the basis of a method of object-oriented, the hazard-affected body object is formed in the high resolution remote sensing image which is segmented. The complete edge of hazard-affected body object is extracted from the hazard-affected body image which is processed by extracting gradient, binarization, removing spurs, and so on. The results indicate that the hazard-affected body edge is with reasonable completeness and accuracy. The method is of universal application and superior to the traditional methods.