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 B4
页码：1529-1532
出版社：Copernicus Publications
摘要：Geology hazards are one of the main nature hazards in China, especially in southwest China. Now the remote sensing technology is considered the most powerful method for forecasting, monitoring, analyzing and assessment these geology hazards. In this paper, geology hazard information including lineament features and landslide body are extracted from multipolarization SAR data around Kunming city, Yunnan province, China. To reduce the influence of SAR speckle and enhance the linear character, a new filter method based on edge detection result is used in this work. The Normalized Difference Polarization Index (NDPI) is also used to analyse the surface characters include vegetation cover, soil (rock) type and roughness. Synthesizing NDPI, digital elevation data and in site monitoring results, the possible distributing map of landslide are created for the study area. The information from this map is basic accordant with that from historic records
