
Proceedings Paper
Improving the quality of photoacoustic images using the short-lag spatial coherence imaging techniqueFormat | Member Price | Non-Member Price |
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Paper Abstract
Clutter noise is an important challenge in photocoustic (PA) and ultrasound (US) imaging as they degrade the image
quality. In this paper, the short-lag spatial coherence (SLSC) imaging technique is used to reduce clutter and side lobes
in PA images. In this technique, images are obtained through the spatial coherence of PA signals at small spatial
distances across the transducer aperture. The performance of this technique in improving image quality and detecting
point targets is compared with a conventional delay-and-sum (DAS) beamforming technique. A superior contrast,
contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) are observed when SLSC imaging is employed. Point
spread function of point targets shows an improved spatial resolution and reduced side lobes when compared with DAS
beamforming. Also shown is the impact of increasing the number of frames on which SLSC is applied. The results show
that contrast, CNR, and SNR are improved with increasing number of frames.
Paper Details
Date Published: 4 March 2013
PDF: 6 pages
Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85813Y (4 March 2013); doi: 10.1117/12.2005061
Published in SPIE Proceedings Vol. 8581:
Photons Plus Ultrasound: Imaging and Sensing 2013
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)
PDF: 6 pages
Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85813Y (4 March 2013); doi: 10.1117/12.2005061
Show Author Affiliations
Published in SPIE Proceedings Vol. 8581:
Photons Plus Ultrasound: Imaging and Sensing 2013
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)
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