摘要
从遥感变化检测前的准备工作和技术流程入手,对变化检测技术及应用现状作了简要介绍,综述了近些年来常用的几种遥感变化检测方法,即图像差值法、图像比值法、主成分分析法、植被指数法、分类后比较法。分析了遥感变化检测在国土资源、森林火灾、海洋、军事等方面发挥的重要作用。
This paper presents the preparatory work and work flow of remote sensing change detection. The change detection technique and its applications are also introduced. Varieties of useful methods of change detection of recently years were summarized in this paper such as image differencing, image ratio method, principal component analysis, NDVI, post-classification comparison and so on. Has analyzed the important function of change detection in the fields of national land resources、forest-fire、sea and military.
出处
《地理空间信息》
2007年第4期57-60,共4页
Geospatial Information
基金
国家自然科学基金资助项目(40401050)
江西省数字国土重点实验室基金资助项目(DLLJ200507)。
关键词
遥感
变化检测
多源数据
检测方法
remote sensing
change detection
multi-source data
detective method
作者简介
吴芳，硕士研究生，研究方向为地图制图学与地理信息系统专业，城市遥感变化检测。
