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Comparing samples from the G distribution using a geodesic distance

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posted on 12.06.2020 by Alejandro Frery, J Gambini
© 2019, Sociedad de Estadística e Investigación Operativa. The G distribution is widely used for monopolarized SAR image modeling because it can characterize regions with different degrees of texture accurately. It is indexed by three parameters: the number of looks (which can be estimated for the whole image), a scale parameter and a texture parameter. This paper presents a new proposal for comparing samples from the G distribution using a geodesic distance (GD) as a measure of dissimilarity between models. The objective is quantifying the difference between pairs of samples from SAR data using both local parameters (scale and texture) of the G distribution. We propose three tests based on the GD which combine the tests presented in Naranjo-Torres et al. (IEEE J Sel Top Appl Earth Obs Remote Sens 10(3):987–997, 2017), and we estimate their probability distributions using permutation methods.

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Preferred citation

Frery, A.C. & Gambini, J. (2020). Comparing samples from the G distribution using a geodesic distance. Test, 29(2), 359-378. https://doi.org/10.1007/s11749-019-00658-2

Journal title

Test

Volume

29

Issue

2

Publication date

01/06/2020

Pagination

359-378

Publisher

Springer Science and Business Media LLC

Publication status

Published

Online publication date

29/04/2019

ISSN

1133-0686

eISSN

1863-8260

Language

en

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