P5C-3 Field Simulation Parameters Design for Realistic Statistical Parameters of Radio - Frequency Ultrasound Images

Abstract

In this paper we present a study for designing realistic ultrasound image simulations from a statistical point of view. Indeed it is extremely important to be able to compute realistic simulated images for validating segmentation or classification methods based on the statistics of ultrasound images. The statistics of the radio frequency (RF) signals is modeled by a distribution called K-RF distribution. The scatterers modeling the medium are uniformly spatially distributed and have scattering coefficients modeled by a K-distribution. The concentration of scatterers and the statistics of their amplitude determine the statistics of the RF signals. We show how scale and shape parameters of the K-RF distribution modeling the RF signal are influenced by concentration, scale and shape parameters of the K distribution modeling the scatterers echogenecity. This study is carried out with the field II simulation program.