Ultrasound speckle analysis based on the K distribution

Li Weng; John M. Reid; P. Mohana Shankar; Kawan Soetanto

doi:10.1121/1.400818

Ultrasound speckle analysis based on the K distribution

Li Weng, John M. Reid, P. Mohana Shankar, Kawan Soetanto

Research output: Contribution to journal › Article › peer-review

91 Citations (Scopus)

Abstract

The departure of speckle magnitude from Rayleigh statistics was applied to examine insonated phantoms with both low and high concentrations of scatterers. A mathematical model, the K distribution of Jakeman, was used to characterize non-Rayleigh statistics. This model contains a parameter, a, which characterizes the clustering of the scattering sites in a medium. It is shown from phantom experiments that alpha is linearly proportional to the log-scaled scatterer concentration in a range from about 1 to 30 scatterers per sample volume.

Original language	English
Pages (from-to)	2992-2995
Number of pages	4
Journal	Journal of the Acoustical Society of America
Volume	89
Issue number	6
DOIs	https://doi.org/10.1121/1.400818
Publication status	Published - 1991 Jun
Externally published	Yes

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.400818

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AB - The departure of speckle magnitude from Rayleigh statistics was applied to examine insonated phantoms with both low and high concentrations of scatterers. A mathematical model, the K distribution of Jakeman, was used to characterize non-Rayleigh statistics. This model contains a parameter, a, which characterizes the clustering of the scattering sites in a medium. It is shown from phantom experiments that alpha is linearly proportional to the log-scaled scatterer concentration in a range from about 1 to 30 scatterers per sample volume.

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Ultrasound speckle analysis based on the K distribution

Abstract

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