Parameter estimation of the homodyned K distribution based on signal to noise ratio

被引：8

作者：

Martin-Fernandez, Marcos ^{[1
]}

Cardenes, Ruben ^{[1
]}

Alberola-Lopez, Carlos ^{[1
]}

机构：

[1] Univ Valladolid, Image Proc Lab, Valladolid, Spain

来源：

2007 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1-6 | 2007年

关键词：

D O I：

10.1109/ULTSYM.2007.51

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The Homodyned K (H-K) distribution is very important in Ultrasound (US) imaging because it models the speckle in a general way, even if the number of scatterers per resolution cell is low and if a coherent component exists. Due to the analytical complexity of this distribution, only a few works based on the H-K have been reported and other simpler distributions have been used instead. Here we provide evidence that, once we have the signal to noise ratio (SNR) from a set of parameters of the H-K distribution, we can estimate the parameters of any given sample set in an easy computational way. In addition, we present a validation study for our estimation procedure.

引用

页码：158 / 161

页数：4

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