A TEST STATISTIC BASED ON WISHART DISTRIBUTION FOR UNSUPERVISED CHANGE DETECTION IN MULTILOOK POLARIMETRIC RADAR DATA

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GHANBARI M.; AKBARI V.; ABKAR A.A.; SAHEBI M.R.

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Journal: JOURNAL OF RADAR Year:2015 | Volume:2 | Issue:4 (SERIAL NO. 6) Page(s): 39-49

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Title

A TEST STATISTIC BASED ON WISHART DISTRIBUTION FOR UNSUPERVISED CHANGE DETECTION IN MULTILOOK POLARIMETRIC RADAR DATA

Author(s)

GHANBARI M. | AKBARI V. | ABKAR A.A. | SAHEBI M.R. | Issue Writer Certificate

Keywords

UNSUPERVISED CHANGE DETECTIONQ2

POLARIMETRIC SYNTHETIC APERTURE RADAR (POLSAR)Q2

TEST STATISTICSQ2

Abstract

In this paper, an unsupervised method for change detection in the multi temporal multipolarization synthetic aperture radar (SAR) imagery is proposed. A matrix distance measure, named symmetric revised Wishart is used as a test statistic in order to assess the similarity of two multi temporal multilook polarimetric SAR data and a variance-based thresholding algorithm is applied to the test statistic image to obtain the final optimum change map. Experimental results, which confirm the accuracy of the proposed method for simulated polarimetric SAR data and RADARSAT-2 space borne imaging radar C-band images, are presented. The findings indicate that 20.3% higher detection accuracy is obtained using the multilook full polarimetric covariance data than the diagonal elements case of covariance matrices.

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APA: Copy

GHANBARI, M., AKBARI, V., ABKAR, A.A., & SAHEBI, M.R.. (2015). A TEST STATISTIC BASED ON WISHART DISTRIBUTION FOR UNSUPERVISED CHANGE DETECTION IN MULTILOOK POLARIMETRIC RADAR DATA. JOURNAL OF RADAR, 2(4 (SERIAL NO. 6)), 39-49. SID. https://sid.ir/paper/244221/en

Vancouver: Copy

GHANBARI M., AKBARI V., ABKAR A.A., SAHEBI M.R.. A TEST STATISTIC BASED ON WISHART DISTRIBUTION FOR UNSUPERVISED CHANGE DETECTION IN MULTILOOK POLARIMETRIC RADAR DATA. JOURNAL OF RADAR[Internet]. 2015;2(4 (SERIAL NO. 6)):39-49. Available from: https://sid.ir/paper/244221/en

IEEE: Copy

M. GHANBARI, V. AKBARI, A.A. ABKAR, and M.R. SAHEBI, “A TEST STATISTIC BASED ON WISHART DISTRIBUTION FOR UNSUPERVISED CHANGE DETECTION IN MULTILOOK POLARIMETRIC RADAR DATA,” JOURNAL OF RADAR, vol. 2, no. 4 (SERIAL NO. 6), pp. 39–49, 2015, [Online]. Available: https://sid.ir/paper/244221/en

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