Effects and limitations of motion compensation in synthetic aperture techniques

Synthetic aperture (SA) schemes provide effective means to improve SNR and resolution of ultrasound images. Since SA schemes are subjective to motion artifacts due to their long data acquisition time, however, there have been efforts to compensate for the motion artifacts. In this paper, we investig...

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Bibliographic Details
Main Authors: Jong-Seob Jeong, Jae-Sub Hwang, Moo-Ho Bae, Tai-Kyong Song
Format: Conference Proceeding
Language:English
Subjects:
Bidirectional control
Data acquisition
Delay effects
Focusing
Image resolution
Motion compensation
Poles and towers
Signal resolution
Signal to noise ratio
Ultrasonic imaging
Online Access:Request full text
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Summary:Synthetic aperture (SA) schemes provide effective means to improve SNR and resolution of ultrasound images. Since SA schemes are subjective to motion artifacts due to their long data acquisition time, however, there have been efforts to compensate for the motion artifacts. In this paper, we investigate the effects of a commonly used motion compensation method when it is applied to a SA scheme, called bidirectional pixel-based focusing (BiPBF). From the results, we verified that axial motion is a dominant factor in causing the motion artifacts and the axial motion can be compensated successfully at the sacrifice of sidelobe levels.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2000.921662