Abstract
The statistics of ultrasound echo envelope signals can be used to characterize scattering media. The Rayleigh distribution and its generalized forms, the K and Rice distributions, have been previously used to model the echo signal. A more generalized statistical model, the homodyned K distribution, combines the K and Rice distribution features to better account for the statistics of the echo signal. We show that this model can give two parameters that are useful for media characterization: k, the ratio of coherent to diffuse signals, and, β, which characterizes the clustering of scatterers in the medium.
Original language | English (US) |
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Pages (from-to) | 265-287 |
Number of pages | 23 |
Journal | Ultrasonic Imaging |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - Oct 1994 |
Keywords
- Echo envelope statistics modeling
- homodyned K distribution
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging