Comparing samples from the G 0 G0 distribution using a geodesic distance

• Alejandro C. Frery ^[1] ; Juliana Gambini ^[2]
  1. [1] Universidade Federal de Alagoas

     Universidade Federal de Alagoas

     Brasil

     
  2. [2] Depto. de Ingeniería Informática, Instituto Tecnológico de Buenos Aires, Av. Madero 399, C1106ACD, Buenos Aires, Argentina
• Localización: Test: An Official Journal of the Spanish Society of Statistics and Operations Research, ISSN-e 1863-8260, ISSN 1133-0686, Vol. 29, Nº. 2, 2020, págs. 359-378
• Idioma: inglés
• DOI: 10.1007/s11749-019-00658-2
• Texto completo no disponible (Saber más ...)
• Resumen

  • The G0G0 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 G0G0distribution 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 G0G0distribution. 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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