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
收藏
页码：158 / 161
页数：4
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