TY - JOUR
T1 - Realistic log-compressed law for ultrasound image recovery
AU - Vegas-Sánchez-Ferrero, Gonzalo
AU - Martín-Martínez, Diego
AU - Casaseca-de-la-Higuera, Pablo
AU - Cordero-Grande, Lucilio
AU - Aja-Fernández, Santiago
AU - Martín-Fernández, Marcos
AU - Palencia, César
PY - 2011/9/14
Y1 - 2011/9/14
N2 - 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.
AB - 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.
KW - speckle probability density
KW - ultrasound log-compression
KW - ultrasound speckle
M3 - Conference paper
VL - 18
SP - 2029
EP - 2032
JO - International Conference on Image Processing (ICIP)
JF - International Conference on Image Processing (ICIP)
ER -