Realistic log-compressed law for ultrasound image recovery

A realistic log-compressed law for ultrasound images based on a real device is proposed. The model takes into account the linear behavior of the logarithmic amplifier for small signal gain which transforms image values in a different way as the classical models do. Additionally, for recovery purpose...

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Bibliographic Details
Main Authors: Vegas-Sanchez-Ferrero, G., Martin-Martinez, D., Casaseca-de-la-Higuera, P., Cordero-Grande, L., Aja-Fernandez, S., Martin-Fernandez, M., Palencia, C.
Format: Conference Proceeding
Language:English
Subjects:
Conferences
Estimation
Image coding
Interpolation
Probabilistic logic
Speckle
Speckle probability density
Ultrasonic imaging
ultrasound log-compression
ultrasound speckle
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Description
Summary:A realistic log-compressed law for ultrasound images based on a real device is proposed. The model takes into account the linear behavior of the logarithmic amplifier for small signal gain which transforms image values in a different way as the classical models do. Additionally, for recovery purposes, a method for the estimation of the compression parameters is also proposed when a realistic log-compressed law is considered. Results with synthetic images show that the proposed method achieved a consistent Rayleigh parameter estimate with a very low error. Experiments with real images show that the inversion method is consistent through the whole acquisition process when parameters of the logarithmic amplifier are assumed constant.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2011.6115877