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Proceedings Paper

Super-resolution of ultrasound images by displacement, averaging, and interlacing
Author(s): Sonia H. Contreras Ortiz; James Macione; Tsuicheng Chiu; Martin D. Fox
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Paper Abstract

Ultrasound is a widely used medical imaging methodology because it is safe and relatively inexpensive. However, the quality of the images is affected by the point spread function of the system and coherent wave interference or speckle. The present research studies the averaging of images that have been displaced laterally and displays them using an interlaced grid. The main goals are to reduce speckle and improve contrast and resolution. The point spread function of the ultrasound scanner was estimated using a thin nylon thread within a water bath. Then, a set of eight images of a breast phantom (having lateral displacements smaller than the width of the point spread function) were averaged and interlaced. The results show a total improvement of 4% in signal to noise ratio and 7% in contrast to noise ratio.

Paper Details

Date Published: 13 March 2009
PDF: 8 pages
Proc. SPIE 7265, Medical Imaging 2009: Ultrasonic Imaging and Signal Processing, 726519 (13 March 2009); doi: 10.1117/12.812883
Show Author Affiliations
Sonia H. Contreras Ortiz, Univ. of Connecticut (United States)
James Macione, Univ. of Connecticut (United States)
Tsuicheng Chiu, Univ. of Connecticut (United States)
Martin D. Fox, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 7265:
Medical Imaging 2009: Ultrasonic Imaging and Signal Processing
Stephen A. McAleavey; Jan D'hooge, Editor(s)

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