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|a 10.1109/TIP.2011.2170702
|2 doi
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|a eng
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| 100 |
1 |
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|a Gong, Maoguo
|e verfasserin
|4 aut
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| 245 |
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|a Change detection in synthetic aperture radar images based on image fusion and fuzzy clustering
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 18.07.2012
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|a Date Revised 22.03.2012
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This paper presents an unsupervised distribution-free change detection approach for synthetic aperture radar (SAR) images based on an image fusion strategy and a novel fuzzy clustering algorithm. The image fusion technique is introduced to generate a difference image by using complementary information from a mean-ratio image and a log-ratio image. In order to restrain the background information and enhance the information of changed regions in the fused difference image, wavelet fusion rules based on an average operator and minimum local area energy are chosen to fuse the wavelet coefficients for a low-frequency band and a high-frequency band, respectively. A reformulated fuzzy local-information C-means clustering algorithm is proposed for classifying changed and unchanged regions in the fused difference image. It incorporates the information about spatial context in a novel fuzzy way for the purpose of enhancing the changed information and of reducing the effect of speckle noise. Experiments on real SAR images show that the image fusion strategy integrates the advantages of the log-ratio operator and the mean-ratio operator and gains a better performance. The change detection results obtained by the improved fuzzy clustering algorithm exhibited lower error than its preexistences
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|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Zhou, Zhiqiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Jingjing
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 21(2012), 4 vom: 10. Apr., Seite 2141-51
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|x 1941-0042
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|g year:2012
|g number:4
|g day:10
|g month:04
|g pages:2141-51
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|u http://dx.doi.org/10.1109/TIP.2011.2170702
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