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Title :Stable Parameter Estimation of Compound Wishart Distribution for Polarimetric SAR Data Modeling
Authors :Cui, Yi
Yamada, Hiroyoshi
Yamaguchi, Yoshio
Publisher :The Institute of Electronics, Information and Communication Engineers
Issue Date :Oct-2013
Journal Title :International Symposium on Antennas and Propagation
Volume :2013
Issue :TA-1(D)-3
Abstract :This paper investigates the parameter estimation of compound Wishart distribution for statistical modeling of polarimetric synthetic aperture radar data. We show that the recently proposed method of matrix log-cumulant may lead to non-invertible equations and cause unstable performances. In order to overcome such difficulty, we proposed a Bayesian-based method to re-estimate the log-cumulants. Simulation experiment demonstrates that the proposed algorithm provides both improved and stabler results. Finally, we present an application of the new method for texture analysis of the Germany F-SAR polarimetric data.
Type Local :会議発表論文
Language :eng
Format :application/pdf
URI :http://hdl.handle.net/10191/30816
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/30816/1/ISAP2013_TA-1(D)-3.pdf
Relation :http://ap-s.ei.tuat.ac.jp/isapx/2013/pdf/305_3_0.pdf
Rights :Copyright(C)2013 IEICE
Appears in Collections:04 電子情報通信学会

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/30816