Title :
Statistical method based on simultaneous diagonalisation for POLSAR images analysis
Author_Institution :
Signal & Image Process. Lab., U.S.T.H.B., Algiers, Algeria
Abstract :
In [1], we have proposed a PCA-ICA neural network model for POLSAR image analysis. We propose here a new method that is full based on an algebraic statistical formulation and that is well justified from the mathematical point of view. Its advantage is that it is easy in its implementation that requires certain subroutines of the inverse matrix and the eigenvalues/eigenvectors decomposition. While the PCA-ICA neural network model is very sensible to both the probabilistic model of the data [2], [3] and the power of the noise that corrupts the input data [1]. In addition, it requires more computation times in its learning process. Thus, the goal of this paper is to arise the power of each method and by this way we try to open new issues in the concern of working out new methods that accumulate the advantages of each method while avoiding their disadvantages.
Keywords :
eigenvalues and eigenfunctions; geophysical image processing; geophysical techniques; matrix algebra; neural nets; principal component analysis; probability; radar imaging; synthetic aperture radar; PCA-ICA neural network model; algebraic statistical formulation; computation times; eigenvalue decomposition; eigenvector decomposition; input data; inverse matrix; learning process; noise power; polsar image analysis; probabilistic model; simultaneous diagonalisation; statistical method; Abstracts; Equations; Facsimile; Integrated circuits; Matrix decomposition; Noise;
Conference_Titel :
Signal Processing Conference, 2006 14th European
Conference_Location :
Florence