Reconstruction of missing ultrasonic phased array data using matrix completion

Katherine Tant, Theodosia Stratoudaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)

Abstract

To acquire full matrix capture (FMC) data from an N element array, N individual transmissions are required. In cases where the acquisition process is lengthy and expensive (as in laser ultrasonics), it is often desirable to reduce the overall data acquisition time by decreasing the number of individual transmissions. Unfortunately, as the recording footprint of the transducer array is depleted, our ability to image with the collected data can be hindered. In this paper, we present a methodology to synthesize reflected data at points on the inspection surface not covered by an active array element, thus reconstructing the same data that would be recorded by a dense array from more sparsely distributed elements. To achieve this we apply matrix completion techniques to both the raw incomplete FMC data and incomplete scattering matrices. The matrix completed data is then compared to the complete dataset and to data reconstructed using a standard inpainting technique.

Original languageEnglish
Title of host publication2019 IEEE International Ultrasonics Symposium - Proceedings
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages627-630
Number of pages4
ISBN (Print)9781728145969
DOIs
Publication statusPublished - 9 Dec 2019
Event2019 IEEE International Ultrasonics Symposium: IEEE UFFC - SECC, Glasgow, United Kingdom
Duration: 6 Oct 20199 Oct 2019
https://attend.ieee.org/ius-2019/

Publication series

NameIEEE International Ultrasonics Symposium, IUS
Volume2019-October
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2019 IEEE International Ultrasonics Symposium
Abbreviated titleIUS 2019
Country/TerritoryUnited Kingdom
CityGlasgow
Period6/10/199/10/19
Internet address

Keywords

  • data reconstruction
  • full matrix capture
  • laser ultrasonics
  • matrix completion
  • sub-sampling

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