自适应距离和模糊拓扑优化的模糊聚类SAR影像变化检测

doi:10.11947/j.AGCS.2018.20160607

测绘学报 ›› 2018, Vol. 47 ›› Issue (5): 611-619.doi: 10.11947/j.AGCS.2018.20160607

自适应距离和模糊拓扑优化的模糊聚类SAR影像变化检测

王建明¹, 史文中², 邵攀^1,2

1. 武汉大学遥感信息工程学院, 湖北武汉 430079;
2. 香港理工大学土地测量及地理资讯学系, 香港九龙

收稿日期:2016-11-28 修回日期:2018-03-11 出版日期:2018-05-20 发布日期:2018-06-01
通讯作者: 邵攀 E-mail:panshao@whu.edu.cn
作者简介:王建明(1979-),男,博士生,研究方向为遥感影像分类及变化检测。E-mail:wjm603@126.com
基金资助:
国家自然科学基金重点项目（41331175）；香港理工大学基金项目（1_ZVF2；1-ZVE8）

Change-detection Method for SAR Image Using Adaptive Distance and Fuzzy Topology Optimization-based Fuzzy Clustering

WANG Jianming¹, SHI Wenzhong², SHAO Pan^1,2

1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;
2. Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong, China

Received:2016-11-28 Revised:2018-03-11 Online:2018-05-20 Published:2018-06-01
Supported by:
The National Natural Science Foundation of China (No.41331175);The Hong Kong Polytechnic University (Nos.1_ZVF2;1-ZVE8)

摘要/Abstract

摘要： 针对模糊聚类算法的不足，结合差分影像的特点，提出一种基于自适应距离（adaptive distance）和模糊拓扑（fuzzy topology）理论的SAR影像变化检测技术框架（FATCD）。FATCD首先基于自适应距离公式提出一种自适应的样本到聚类中心的距离计算方法，优化了聚类过程中像元隶属度的计算公式，提高了模糊隶属度函数的准确程度；而后利用模糊拓扑理论改进传统去模糊化方式最大隶属度原则，从而增强了去模糊化过程。借助这两点，FATCD提高了模糊聚类变化检测的性能。两组真实SAR影像数据的试验结果表明本文方法可行、有效。

关键词: SAR影像变化检测, 模糊拓扑, 自适应距离, 模糊聚类算法, FATCD

Abstract: In this paper, a framework of change detection based on adaptive distance and fuzzy topology (FATCD) is proposed for synthetic aperture radar (SAR) imagery. FATCD integrates the characteristics of differenced image and can overcome the limitations of fuzzy C-means (FCM) type algorithms. The framework includes two key steps. First, a new adaptive method is employed to calculate the distances from samples to cluster centers using an adaptive distance function. As a result, the formula of pixel membership evaluation is modified, and the accuracy of the obtained fuzzy membership degree is improved. Then, fuzzy topology is integrated into the maximum membership rule to improve the traditional defuzzification method. In virtue of the above two points, FATCD can enhance the change detection performance of FCM-type algorithms. Experimental results on two different SAR images confirm the effectiveness of the proposed technique.

Key words: SAR image change detection, fuzzy topology, adaptive distance, fuzzy clustering algorithm, FATCD

中图分类号:

P237

王建明, 史文中, 邵攀. 自适应距离和模糊拓扑优化的模糊聚类SAR影像变化检测[J]. 测绘学报, 2018, 47(5): 611-619.

WANG Jianming, SHI Wenzhong, SHAO Pan. Change-detection Method for SAR Image Using Adaptive Distance and Fuzzy Topology Optimization-based Fuzzy Clustering[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(5): 611-619.

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自适应距离和模糊拓扑优化的模糊聚类SAR影像变化检测

Change-detection Method for SAR Image Using Adaptive Distance and Fuzzy Topology Optimization-based Fuzzy Clustering

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