基于遥感解译的地质灾害判别与分类方法研究

Discrimination and classification of geological hazards based on remote sensing interpretation

卫星遥感技术具有探测面积大和获取信息全等优势。本文针对该技术在地质灾害调查应用中的现状与特点,提出一种基于证据权法的地质灾害评估方法。该方法以区域性解译标志点为依据,对遥感影像进行自动分类处理,对地质灾害进行判别与分类,形成研究区域的地质灾害危险性分级图。经试验验证,该方法能够有效提取各类地质灾害点,并能够预测可能发生地质灾害的风险点,技术可靠,实施效率较高,在地质灾害的调查与评估方面具有一定的推广价值。

Satellite remote sensing technology can cover large detection area and comprehensively acquire information.A geological disaster assessment method based on the weight of evidence method is proposed in this paper for the application status and characteristics of the technology in geological disaster investigation.The method is based on the regional interpretation mark points,it can automatically classify and process the remote sensing images,discriminate and classify the geological disasters,and generate the geological disaster risk classification map of the study area.It is illustrated by the experiments that the method proposed in this paper can be used to effectively extract all kinds of geological disaster points and predict the risk points of possible geological disasters.It is reliable and high efficiency,so can be used widely in the investigation and evaluation of geological disasters.