Defect detection from compressed 3-D ultrasonic frequency measurements
Semper S, Kirchhof J, Wagner C, Krieg F, Roemer F, Galdo GD (2019)
Publication Type: Conference contribution
Publication year: 2019
Publisher: European Signal Processing Conference, EUSIPCO
Book Volume: 2019-September
Conference Proceedings Title: European Signal Processing Conference
Event location: A Coruna, ESP
ISBN: 9789082797039
DOI: 10.23919/EUSIPCO.2019.8903133
Abstract
In this paper, we propose a compressed sensing scheme for volumetric synthetic aperture measurements in ultrasonic nondestructive testing. The compression is achieved by limiting the measurement to a subset of the Fourier coefficients of the full measurement data, where we also address the issue of a suitable hardware architecture for the task. We present a theoretic analysis for one of the proposed schemes in terms of the Restricted Isometry Property and derive a scaling law for the lower bound of the number of necessary measurements for stable and efficient recovery. We verify our approach with reconstructions from measurement data of a steel specimen that was compressed synthetically in software. As a side result, our approach yields a variant of the 3-D Synthetic Aperture Focusing Technique which can deal with compressed data.
Involved external institutions
Technische Universität Ilmenau
Germany (DE)
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren (IZFP) / Fraunhofer Institute for Nondestructive Testing
Germany (DE)
Germany (DE)
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren (IZFP) / Fraunhofer Institute for Nondestructive Testing
Germany (DE)
How to cite
APA:
Semper, S., Kirchhof, J., Wagner, C., Krieg, F., Roemer, F., & Galdo, G.D. (2019). Defect detection from compressed 3-D ultrasonic frequency measurements. In European Signal Processing Conference. A Coruna, ESP: European Signal Processing Conference, EUSIPCO.
MLA:
Semper, Sebastian, et al. "Defect detection from compressed 3-D ultrasonic frequency measurements." Proceedings of the 27th European Signal Processing Conference, EUSIPCO 2019, A Coruna, ESP European Signal Processing Conference, EUSIPCO, 2019.
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