Four-component Decomposition of POLSAR Image Based on Coherency Matrix

Conference: EUSAR 2006 - 6th European Conference on Synthetic Aperture Radar
05/16/2006 - 05/18/2006 at Dresden, Germany

Proceedings: EUSAR 2006

Pages: 4Language: englishTyp: PDF

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Yamaguchi, Yoshio; Yajima, Yuki; Yamada, Hiroyoshi (Niigata University, Japan)

A four-component scattering power decomposition scheme is developed for polarimetric SAR image analysis based on the coherency matrix. The four-component consists of surface scattering, double bounce scattering, volume scattering, and helix scattering power. The coherency matrix is used to deal with non-reflection symmetric scattering case. The decomposition results agree with those of the covariance approach. The advantage of the cohrency matrix approach is explicit expressions of 4 scattering powers in terms of scattering matrix elements, which serve the interpretation of POLSAR data quantitatively.