动态监测变化信息提取  

Extracting change information in dynamic monitoring

作　　者：冯德俊[1] 申京诗[2] 李永树[1] 蒲体信 

机构地区：[1]西南交通大学测量工程系,四川成都610031 [2]四川省国土勘测规划研究院,四川成都610000

出　　处：《测绘工程》2004年第1期17-20,共4页Engineering of Surveying and Mapping

摘　　要：在土地利用遥感动态监测变化信息提取过程中,利用自动发现方法得到的变化图斑灰度值是分布在一定范围内的,为了能高效地提取出区域变化信息,利用Photoshop图像处理技术,将变化图斑及其背景二值化,并利用本文提出的似四邻域边界矢量化算法进行自动矢量化处理。然后,对比其它方法处理得到的变化信息对提取的矢量边界进行编辑处理,提高数据室内处理精度。Because change plots' tone, which is detected automatically by dynamic monitoring of Land use, distributes in a definite range, in order to extract change information efficiently, change plot and its surroundings are bi-valued using technology of image processing of Photoshop, and vector boundary of change plot is drawn automaticaly by vector arithmetic of similar four directions in this paper. Last, the vector boundary is edited by comparing with diversiform change plot detected automatically, so we can improve processing precision indoor.

关 键 词：动态监测 土地利用 遥感 矢量边界 PHOTOSHOP图像处理 

分 类 号：P235[天文地球—摄影测量与遥感] F301.24[天文地球—测绘科学与技术]