灰度门限法在遥感图像信息提取中应用  

The Application of Gray Thresholdin Remote Sensing Image Information Extraction

作　　者：徐兮[1] 潘建平[1] 冯晓[1] 

机构地区：[1]重庆交通大学土木学院测绘系,重庆400074

出　　处：《城市勘测》2008年第2期60-62,共3页Urban Geotechnical Investigation & Surveying

基　　金：国家教委"春晖计划"资助,项目号:Z2005-1-55004

摘　　要：在遥感图像中,目标区域与背景区域的灰度值客观上存在不同,那么根据灰度区别进行地物信息提取成为图像处理最行之有效的方法之一。为了正确提取目标信息,首先设置一个灰度临界值——灰度门限,灰度高于该限判别为目标信息,灰度低于该限归纳为背景信息,然后移除虽然灰度大于门限值但显然不属于目标的噪杂信息,最后保留下的信息即为所求。本文的价值,在于极富操作性地完成了上述构想的实现。In Remote sensing ilnage, the gray between target regions and background regions is objectively difficult. Well, it is the best effective method in to extract according to Gray difference. In order to extract the correct target infor- mation, we should set up a of gray--gray threshold, at first, if the gray is higher than the limit,it is identified as target information, if the gray below the limit, it is summarized for background information, then remove the information which is obviously not goal, but gray higher is than Threshold. Finally, the remaining information is our request. The value of this paper is that making the comes true.

关 键 词：灰度 提取 门限 信息 图像 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置]