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Proceedings Paper

Resolution limitation of travel time tomography: beyond the first Fresnel zone
Author(s): Cuiping Li; Neb Duric
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Paper Abstract

Previous studies concluded that the resolution limitation of travel-time tomography is the width of the first Fresnel zone. However, we believe that the resolution of ray tomography cannot simply be limited to the first Fresnel zone and is affected by many factors. In this study, we investigate a variety of factors that affect the resolving power of travel time tomography. These factors include accuracy of picked travel time, ray coverage (data density) and data signal-to-noise ratio (SNR). We also investigate to what extent that bent-ray travel-time tomography is capable of resolving anomalous objects smaller than the first Fresnel zone based on numerical simulations. We have shown that bent-ray travel-time tomography resolvability and detectability of small objects is better than the first Fresnel zone.

Paper Details

Date Published: 29 March 2013
PDF: 10 pages
Proc. SPIE 8675, Medical Imaging 2013: Ultrasonic Imaging, Tomography, and Therapy, 86751D (29 March 2013); doi: 10.1117/12.2006978
Show Author Affiliations
Cuiping Li, Delphinus Medical Technologies, Inc. (United States)
Neb Duric, Delphinus Medical Technologies, Inc. (United States)
Karmanos Cancer Institute (United States)

Published in SPIE Proceedings Vol. 8675:
Medical Imaging 2013: Ultrasonic Imaging, Tomography, and Therapy
Johan G. Bosch; Marvin M. Doyley, Editor(s)

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