The motivation for the work emanated from the educational use of these tools at the college and university level, but with a perspective to their professional and scientific use as well. In this paper, the authors compare the features and the overall performance of the two high-level numerical computing and modeling software environments: the freeware Scilab and commercially available industry-standard MATLAB. We show that the proposed filter alsoĮnhances the polarimetric entropy and preserves the scattering information of Quality assessment methods on simulated and real data are employed to validate Technique was compared with the Boxcar, Refined Lee and IDAN filters. Of (h-phi) divergences which originated in Information Theory. Therefore, can be used to compute a local mean. Verify the hypothesis that two samples come from the same distribution and, The location-variant linear filter are function of the p-values of tests which PolSAR data, but the technique can be extended to other models. This proposal uses the complex Wishart model to describe

Select homogeneous pixels in the filtering area through statistical testsīetween distributions. Statistical test based on stochastic divergences. Synthetic Aperture Radar (PolSAR) imagery using Nonlocal Means and a This paper presents a technique for reducing speckle in Polarimetric The assessment was made comparing the resultsĬomputed by the platforms with certified values, that is, known results,Ĭomputing the number of correct significant digits. Which includes the computation of basic univariate statistics (mean, standardĭeviation and first-lag correlation), linear regression and extremes of Provided by NIST (National Institute of Standards and Technology), a protocol Matrix determinants and eigenvalues, whose results are known. We propose a set of operations which include the computation of Verify the stability of the results with respect to small departures from the A Monte Carlo study was conducted in some of the datasets in order to

Tests using standard data sets and using the functions provided by each Operating systems (Windows, Ubuntu and Mac OS). Modelling: MatLab, Octave and Scilab, running on i386 architecture and three In this article we test the accuracy of three platforms used in computational

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