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Automatic change detection from SAR images based on fuzzy entropy principle
Pan Chunhong; Prinet Veronique; Yang Qing; Ma Songde
Source PublicationCHINESE JOURNAL OF ELECTRONICS
2007
Volume16Issue:1Pages:76-81
SubtypeArticle
AbstractIn 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.
KeywordChange Detection Fuzzy Entropy Voting Homogeneous Regions Verification
WOS HeadingsScience & Technology ; Technology
WOS KeywordUNSUPERVISED CHANGE DETECTION
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000243961700017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9389
Collection09年以前成果
AffiliationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
Recommended Citation
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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