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Total Focusing Method with Subsampling in Space and Frequency Domain for Ultrasound NDT

 
: Pérez, Eduardo; Kirchhof, Jan; Semper, Sebastian; Krieg, Fabian; Römer, Florian

Cochran, Sandy (General Co-Chair) ; Institute of Electrical and Electronics Engineers -IEEE-; IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society:
IEEE International Ultrasonics Symposium, IUS 2019 : October 6 - 9, 2019, Glasgow, Scotland
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-7281-4595-2
4 S.
International Ultrasonics Symposium (IUS) <2019, Glasgow>
Deutsche Forschungsgemeinschaft DFG
CoSMaDU
Deutsche Forschungsgemeinschaft DFG
HoPaDyn
Englisch
Konferenzbeitrag
Fraunhofer IZFP ()
Compressed Sensing (CS); Total Focusing Method (TFM)

Abstract
In this paper, we present a compressed sensing model for 2D Full Matrix Capture data from a uniform linear array. Data is reconstructed via a matrix-free implementation of the Total Focusing Method (TFM) combined with the Fast Iterative Shrinkage/ Thresholding Algorithm. This results in reduced measurement times and data volumes without sacrificing image quality. Our approach is compared to standard TFM by applying the techniques on real measurement data, both synthetically compressed and complete.

: http://publica.fraunhofer.de/dokumente/N-562030.html