Title :
Advanced amplitude attenuation and frequency shift correction in B-mode ultrasonic tomography
Author :
Kilian, Pavel ; Bijnens, Bart ; Jan, Jiri
Author_Institution :
Dept. of Biomed. Eng., Tech. Univ. Brno, Czech Republic
fDate :
31 Oct-3 Nov 1996
Abstract :
An algorithm for correction of both the amplitude attenuation and frequency-shift in B-mode ultrasonic imaging is presented. The algorithm is based on a dynamic one-dimensional finite-impulse-response (FIR) filter. A direct formula for coefficients of the system was derived supposing that the attenuation is linearly dependent on the frequency. Also the approach incorporating the lateral inhomogeneity is described
Keywords :
FIR filters; biomedical ultrasonics; computerised tomography; image restoration; medical image processing; ultrasonic absorption; B-mode ultrasonic imaging; B-mode ultrasonic tomography; advanced amplitude attenuation; dynamic one-dimensional finite-impulse-response filter; frequency shift correction; lateral inhomogeneity; medical diagnostic imaging; system coefficients formula; Attenuation; Backscatter; Biological system modeling; Biological tissues; Dispersion; Distributed control; Equations; RF signals; Radio frequency; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652030
