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| 面向对象的地质灾害信息提取——以汶川地震为例 | |
| 引用本文： | 彭立,杨武年,黎小东,邵怀勇,张敏,曾涛.面向对象的地质灾害信息提取——以汶川地震为例[J].西南师范大学学报(自然科学版),2011,36(2). |
| 作者姓名： | 彭立 杨武年 黎小东 邵怀勇 张敏 曾涛 |
| 作者单位： | 1. 成都理工大学管理科学学院,成都,610059 2. 成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都,610059 3. 成都理工大学遥感与GIS研究所,成都,610059 |
| 基金项目： | 地质灾害防治与地质环境保护国家重点实验室开放研究基金资助项目 |
| 摘 要： | 讨论了面向对象的高空间分辨率遥感影像地质灾害体信息提取方法.该方法首先利用像元的色调和形状特征判别所要生成的影像对象的异质性,采取自下而上区域合并的方法将影像划分为互不相交的影像对象,然后根据这些对象的影像特征,如光谱、纹理、形状和上下文等,进行分类,提取出地质灾害体.结果表明,该方法能有效地提取地质灾害信息,为震灾调查和快速预评估提供决策支持数据. |
| 关 键 词： | 地质灾害 面向对象 高精度航片 遥感 |
Information Extraction of Geological Hazards in an Object-Oriented Approach a Case Study in Wenchuan Earthquake |
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| PENG Li,YANG Wu-nian,LI Xiao-dong,SHAO Huai-yong,ZHANG Min,ZENG Tao.Information Extraction of Geological Hazards in an Object-Oriented Approach a Case Study in Wenchuan Earthquake[J].Journal of Southwest China Normal University(Natural Science),2011,36(2). | |
| Authors: | PENG Li YANG Wu-nian LI Xiao-dong SHAO Huai-yong ZHANG Min ZENG Tao |
| Institution: | PENG Li,YANG Wu-nian,LI Xiao-dong,SHAO Huai-yong,ZHANG Min,ZENG Tao College of Management Science,Chengdu University of Technology,Chengdu 610059,China,State Key Laboratory of Geohazard Prevention & Geoenvironment Protection,Institute of RS & GIS |
| Abstract: | Wenchuan Earthquake triggered a burst of variable and complicated geological hazards whose geometrical and texture features were recorded in high resolution remotely sensed imagery.This paper presents an object-oriented method to extract the geological hazard information.The degree of heterogeneity among expected image objects was determined upon the tone and the shape factors of per pixel.It was used to segment the input image into unintersected pieces of image objects in a down-up region merging approach.... |
| Keywords: | geological hazard object-oriented high resolution imagery remote sensing |
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