Segmentation Of Inhomogeneous Skin Tissues In High-Frequency 3d Ultrasound Images, The Advantage Of Non-Parametric Log-Likelihood Methods

We propose a multi-purpose level-set segmentation algorithm to detect the boundary of tumors and tissues in high-frequency 3D ultrasound images of the skin. Whereas most proposed algorithms assume a specific (e.g. Rayleigh) distribution of the speckle noise, we do not make such assumption and use non-parametric Parzen estimates of the distribution. We discuss the advantage of the method on synthetic and clinical images of the skin and tumors. (C) 2015 Published by Elsevier B.V.