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arXiv · 2210.05833

Parameter estimation of the homodyned K distribution based on neural networks and trainable fractional-order moments

Michal Byra·Ziemowit Klimonda·Piotr Jarosik
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Abstract

Homodyned K (HK) distribution has been widely used to describe the scattering phenomena arising in various research fields, such as ultrasound imaging or optics. In this work, we propose a machine learning based approach to the estimation of the HK distribution parameters. We develop neural networks that can estimate the HK distribution parameters based on the signal-to-noise ratio, skewness and kurtosis calculated using fractional-order moments. Compared to the previous approaches, we consider the orders of the moments as trainable variables that can be optimized along with the network weights using the back-propagation algorithm. Networks are trained based on samples generated from the HK distribution. Obtained results demonstrate that the proposed method can be used to accurately estimate the HK distribution parameters.

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Michal Byra, Ziemowit Klimonda, Piotr Jarosik. 2022-12-16. Parameter estimation of the homodyned K distribution based on neural networks and trainable fractional-order moments. https://arxiv.org/abs/2210.05833

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