Title :
Higher order versus second order statistics in ultrasound image deconvolution
Author :
Abeyratne, Udantha R. ; Petropulu, Athina P. ; Reid, John M. ; Golas, Thomas ; Conant, Emily ; Forsberg, Flemming
Author_Institution :
GORCA Syst. Inc., Maple Shade, NJ, USA
Abstract :
We recently proposed a method for the estimation of imaging distortions associated with ultrasound images, based on the higher-order statistics (HOS) of radio frequency data. In this correspondence, we utilize the HOS-based estimated distortions to deconvolve ultrasound images of the breast. We also estimate imaging distortions based on the second-order statistics (SOS) of radio frequency ultrasound data and subsequently utilize them to deconvolve the same breast images. Both subjective and objective measures suggest that deconvolution with HOS-based distortion estimates led to significantly higher resolution gains as compared to the gains achieved when SOS-based distortion estimates were used.
Keywords :
acoustic signal processing; biomedical ultrasonics; deconvolution; higher order statistics; medical image processing; breast; distortion; higher order statistics; radio frequency data; resolution; second order statistics; ultrasound image deconvolution; Breast; Deconvolution; Distortion measurement; Frequency estimation; Gain measurement; High-resolution imaging; Higher order statistics; Radio frequency; Ultrasonic imaging; Ultrasonic variables measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on