INVESTIGADORES
LUCINI Maria magdalena
congresos y reuniones científicas
Título:
M-estimators of the roughness and scale for SAR images modelled by the GA0-distribution
Autor/es:
LUCINI, MARÍA MAGDALENA; BUSTOS, OSCAR H; FRERY, AC
Reunión:
Conferencia; International Conference on Contemporary Data Analysis, Theory and Methods; 2001
Resumen:
In this paper the GA0 distribution is assumed as the universal model for multilook amplitude SAR imagery data under theMultiplicative Model. It can be seen that Maximum Likelihood and Moment estimators for its parameters can be influenced by small percentages of ?outliers?; hence, it is of outmost importance to find Robust Estimators for these parameters. One of the best known classes of robust techniques is that of M-estimators, which are an extension of the Maximum Likelihood estimation method. In this work we compute the M-estimators for the parameters of the GA0 distribution and compare them with the aforementioned classical estima- tors, with a Monte Carlo experience.