测绘科学技术学报2016，Vol.33Issue(2)：180-184,5.DOI:10.3969/j.issn.1673-6338.2016.02.013
联合变化强度和相关系数最小错分概率变化检测阈值优化
Change Detection Threshold Optimization of Combining Change Intensity with Correlation Coefficient Based on the Minimum Error Probability
摘要
Abstract
Since there is a problem in excessive dependence on prior knowledge of traditional change detection ap-proach of remote sensing image based on the minimum error probability this paper adopts a change detection threshold optimization method of combining change intensity with correlation coefficient based on the minimum er-ror probability. First of all the initial range of image segmentation threshold by histogram of change intensity image and correlation coefficient was determined on the premise of numerical analysis of the two characteristics. Then within the scope of the threshold the minimum error probability was calculated. In other words the minimum error probability was obtained by the iterative threshold and the corresponding threshold of it was the optimal threshold value. Finally the two images were executed overlay analysis to gain change results. The experiment results show that change detection precision of the method is the same as the traditional method and it s a reliable and unsuper-vised change detection with no need for parameter estimation.关键词
最小错分概率/变化强度/相关系数/参数估计/最佳阈值Key words
the minimum error probability/change intensity/correlation coefficient/parameter estimation/the optimal threshold分类
天文与地球科学引用本文复制引用
狄亚南,江刚武,张一,赵明衍,韩雪松,李明譞..联合变化强度和相关系数最小错分概率变化检测阈值优化[J].测绘科学技术学报,2016,33(2):180-184,5.基金项目
国家自然科学基金项目(41471387)。 （41471387）
