Oscar H. Bustos

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The GA0 distribution is assumed as the universal model for multilook amplitude SAR imagery data under the Multiplicative Model. This distribution has two unknown parameters related to the roughness and the scale of the signal, that can be used in image analysis and processing. It can be seen that Maximum Likelihood and moment estimators for its parameters(More)
— This paper presents two new MAP (Maximum a Posteriori) filters for speckle noise reduction and a Monte Carlo procedure for the assessment of their performance. In order to quantitatively evaluate the results obtained using these new filters, with respect to classical ones, a Monte Carlo extension of Lee's protocol is proposed. This extension of the(More)
RESUMEN En este trabajo se considera el problema de estimar la rugosidad de blancos sensados con radar de apertura sintética – SAR, bajo la hipótesis del Modelo Multiplicativo para datos en formato de amplitud, una o múltiples vistas y muestras de tamaño moderado. Se supone que los datos obedecen una distribución muy flexible, recientemente propuesta para(More)
This paper presents a general result for the simulation of correlated heterogeneous targets, which are present in images corrupted by speckle noise. This technique is based on the use of a correlation mask and Gaussian random variables , in order to obtain spatially dependent Gamma deviates. These Gamma random variables, in turn, allow the obtainment of(More)
This work presents the results of assessing the accuracy of statistical routines as implemented in the IDL platform, versions 5.6 and 6.0 for Windows XP and Linux. This is " a complete computing environment for the interactive analysis and visu-alization of data. IDL integrates a powerful, array-oriented language with numerous mathematical analysis and(More)
This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents(More)
The G 0 A distribution is assumed as the universal model for multilook amplitude SAR imagery data under the multiplicative model. This distribution has two unknown parameters related to the roughness and the scale of the signal, that can be used in image analysis and processing. It can be seen that maximum likelihood and moment estimators for its parameters(More)