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Automatic change detection from SAR images based on fuzzy entropy principle
Pan Chunhong; Prinet Veronique; Yang Qing; Ma Songde
2007
发表期刊CHINESE JOURNAL OF ELECTRONICS
卷号16期号:1页码:76-81
文章类型Article
摘要In this paper, we propose a general framework for automatic change detection of flooded areas in bi-temporal Synthetic aperture radar (SAR) imagery. Based on the fuzzy entropy principle, a single thresholding method is proposed. The difference image which is generated by subtracting, one SAR image from the other one, pixel by pixel, can be divided into two classes: changed and unchanged. Due to noise, this single threshold decision procedure applied in the difference image is prone to two kinds of errors: false positives and false negatives. To cope with this problem, the threshold method is performed again on the two separate classes. As a result, the difference image can be divided into changed, unchanged, and unlabelled classes. The unlabelled class contains most of the ambiguous pixels that are responsible for false positive and false negative errors. In order to identify the true category of the pixels in this class, we adopt a voting procedure to compute the saliency of each unlabelled candidate pixel by analyzing the region configuration in the local neighborhood. Finally, according to the radiometric characteristics of water bodies in SAR images, some verification measures are carried out to identify water changes.
关键词Change Detection Fuzzy Entropy Voting Homogeneous Regions Verification
WOS标题词Science & Technology ; Technology
关键词[WOS]UNSUPERVISED CHANGE DETECTION
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Electrical & Electronic
WOS记录号WOS:000243961700017
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9389
专题09年以前成果
作者单位Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
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GB/T 7714
Pan Chunhong,Prinet Veronique,Yang Qing,et al. Automatic change detection from SAR images based on fuzzy entropy principle[J]. CHINESE JOURNAL OF ELECTRONICS,2007,16(1):76-81.
APA Pan Chunhong,Prinet Veronique,Yang Qing,&Ma Songde.(2007).Automatic change detection from SAR images based on fuzzy entropy principle.CHINESE JOURNAL OF ELECTRONICS,16(1),76-81.
MLA Pan Chunhong,et al."Automatic change detection from SAR images based on fuzzy entropy principle".CHINESE JOURNAL OF ELECTRONICS 16.1(2007):76-81.
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