Optimization of Polarimetric Contrast Enhancement Based on Fisher Criterion

Qiming DENG  Jiong CHEN  Jian YANG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.12   pp.3968-3971
Publication Date: 2009/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3968
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Sensing
Keyword: 
synthetic aperture radar (SAR),  polarization,  optimization of polarimetric contrast enhancement (OPCE),  Fisher criterion,  linear discriminant analysis (LDA),  

Full Text: PDF(562.6KB)>>
Buy this Article




Summary: 
The optimization of polarimetric contrast enhancement (OPCE) is a widely used method for maximizing the received power ratio of a desired target versus an undesired target (clutter). In this letter, a new model of the OPCE is proposed based on the Fisher criterion. By introducing the well known two-class problem of linear discriminant analysis (LDA), the proposed model is to enlarge the normalized distance of mean value between the target and the clutter. In addition, a cross-iterative numerical method is proposed for solving the optimization with a quadratic constraint. Experimental results with the polarimetric SAR (POLSAR) data demonstrate the effectiveness of the proposed method.