Resolution enhancement of ultrasonic B-mode images

Mosey, Stephen A. and Charlton, Peter and Wells, Ian (2013) Resolution enhancement of ultrasonic B-mode images. Insight - Non-Destructive Testing and Condition Monitoring, 55 (2). ISSN 1354-2575

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Abstract

The use of ultrasonic array imaging systems is now commonplace throughout the NDT industry, but interpretation of the images produced by such systems can be a time-consuming process, which is further complicated by the inherent suboptimal resolution of such images. This paper proposes a three-step processing chain: noise-to-signal ratio (NSR) deconvolution, beam model weighted synthetic aperture focusing technique (BMW-SAFT) and statistical background noise removal (SBNR) image noise removal, which can be used to significantly enhance the temporal and spatial resolution of these systems. A validated simulation model is used to generate B-scan image data. Conventional Wiener filter deconvolution and SAFT methods are compared to those proposed, with results indicating a significant improvement.

Item Type: Article
Uncontrolled Keywords: ultrasonic array imaging systems
Subjects: Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Institutes and Academies > Wales Institute for Science & Art (WISA)
Depositing User: Professor Peter Charlton
Date Deposited: 18 Jan 2017 15:28
Last Modified: 22 Feb 2017 10:26
URI: https://repository.uwtsd.ac.uk/id/eprint/691

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