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Reconstruction of Quantitative Acoustic Microscopy Images from RF Signals Sampled at Innovation Rate

Kim, Jong-Hoon and Mamou, Jonathan and Kouamé, Denis and Achim, Alin and Basarab, Adrian Reconstruction of Quantitative Acoustic Microscopy Images from RF Signals Sampled at Innovation Rate. (2018) In: IEEE International Ultrasonics Symposium (IUS 2018), 22 October 2018 - 25 October 2018 (Kobe, Japan).

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Official URL: https://doi.org/10.1109/ULTSYM.2018.8580075

Abstract

The principle of quantitative acoustic microscopy (QAM) is to form two-dimensional acoustic parameter maps from a collection of radiofrequency (RF) signals acquired by raster scanning a biological sample. Despite their relatively simple structure, i.e. two main reflections, QAM RF signals are currently sampled at very high frequencies, e.g., at 2.5 GHz for QAM system employing a single-element transducer with a center frequency of 250-MHz. The use of such high sampling frequencies is challenging because of the potentially large amount of acquired data and the cost of the necessary analog to digital converters. In this work, we propose a sampling scheme based on the finite rate of innovation theory that exploits the limited numbers of degrees of freedom of QAM RF signals and allows the reconstruction of accurate acoustic maps from a very limited number of samples.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org This papers appears in Proceedings of IUS 2018. Electronic ISSN: 1948-5727 Electronic ISBN: 978-1-5386-3425-7 The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/8580075 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > University of Bristol (UNITED KINGDOM)
Other partners > Riverside Research (USA)
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Deposited On:03 Mar 2020 14:53

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