Title :
Compound imaging using Synthetic Aperture Sequential Beamformation
Author :
Jensen, Casper Bo ; Jensen, Jonas ; Hemmsen, Martin Christian ; Hansen, Jens Munk ; Jensen, Jørgen Arendt
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
Synthetic Aperture Sequential Beamforming (SASB) is a technique with low complexity and the ability to yield a more uniform lateral resolution with range. However, the presence of speckle artifacts in ultrasound images degrades the contrast. In conventional imaging speckle is reduced by using spatial compounding at the cost of a reduced frame rate. The objective is to apply spatial compounding to SASB and evaluate if the images have a reduced speckle appearance and thereby an improved image quality in terms of contrast compared to ordinary SASB.
Keywords :
array signal processing; speckle; ultrasonic imaging; compound imaging; imaging speckle; lateral resolution; low complexity; spatial compounding; speckle artifacts; synthetic aperture sequential beamformation; ultrasound images; Compounds; Phantoms; Signal to noise ratio; Speckle; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium (IUS), 2011 IEEE International
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1253-1
DOI :
10.1109/ULTSYM.2011.0565