一种排除D-S证据冲突的遥感影像变化检测方法  

A Method for Change Detection of Remote Sensing Image Based on Eliminating D-S Conflict

作　　者：刘艳 王立富 LIU Yan;WANG Lifu(Geophysical Prospecting Team of East China Metallurgical Geological Prospecting Bureau, Wuhu Anhui 241000, China;Heilongjiang Agricultural Reclamation Survey and Research Institute, Haerbin Heilongjiang 150090, China)

机构地区：[1]华东冶金地质勘查局物探队,安徽芜湖241000 [2]黑龙江农垦勘测设计研究院,黑龙江哈尔滨150090

出　　处：《北京测绘》2018年第5期610-615,共6页Beijing Surveying and Mapping

摘　　要：目前的遥感影像的变化检测倾向于多特征融合方法,然而以多特征进行D-S(Dempster-Shafer)证据合成时可能存在证据冲突,直接影响特征组合的合理性。基于证据冲突改进算法,本文提出了一种排除多特征证据冲突的遥感影像变化检测方法,该法通过对影像的边缘、纹理、梯度、形态建筑物指数特征进行信息提取,并在搜索窗和匹配窗中计算先后两时相影像结构相似度,利用改进D-S方法对其进行证据融合,排除不可信证据,提取影像变化信息。实验发现,本文提出的方法可有效排除冲突证据,提高特征组合合理性,具有较高的变化检测精度,不失为一种遥感影像变化检测新方法。The current change detection of remote sensing imagery is inclined to the multi feature fusion method.However,there may be conflict of evidence in the synthesis of D-S evidence,which directly affects the rationality of feature combination.Based on the improved evidence conflict algorithm,the RS imagery change detection that removed the multi feature evidence confliction was proposed.By extracting features based on image edge,texture,gradient and MBI,the structural similarity was calculated in two phase images in search windows and matching windows,the evidence fusion was done by using the improved D-S method with the exclusion of unreliable evidence,thus the changing information was extracted.The experimental results show that the method proposed in this paper could effectively eliminate the conflict evidence and improve the rationality of feature combination.

关 键 词：证据冲突 影像匹配 结构相似度 多特征提取 边缘检测 

分 类 号：P237[天文地球—摄影测量与遥感]