Title :
Fast calculation of Adaptive-Non-Negative-Eigenvalue-Decomposition employing particle swarm Optimization
Author :
Moriyama, Takumi
Author_Institution :
Grad. Sch. of Eng., Nagasaki Univ., Nagasaki, Japan
Abstract :
This paper considers a fast calculation of adaptive-non-negative eigenvalue-decomposition (ANNED). ANNED is one of useful polarimetric decomposition techniques and provides valuable information for remote sensing from measured covariance matrix. It has a disadvantage to take long time to estimate the decomposition parameters. To overcome this problem, the generalized eigenvalue problem has been applied. However, in practical use, more speed up is needed. In this paper, a particle swarm optimization (PSO) is applied to ANNED with the generalized eigenvalue problem. Thus, more fast calculation of ANNED is achieved and it is possible that POLSAR image with many pixels is analyzed.
Keywords :
covariance matrices; eigenvalues and eigenfunctions; geophysical image processing; particle swarm optimisation; radar imaging; radar polarimetry; remote sensing by radar; synthetic aperture radar; terrain mapping; ANNED; POLSAR image; adaptive-nonnegative-eigenvalue-decomposition; covariance matrix; generalized eigenvalue problem; particle swarm optimization; polarimetric decomposition parameters; polarimetric decomposition techniques; remote sensing; Adaptation models; Covariance matrices; Eigenvalues and eigenfunctions; Particle swarm optimization; Scattering; Solid modeling; Synthetic aperture radar;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2013 Asia-Pacific Conference on