New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials

Timothy Lardner; Minghui Li; Rui Gongzhang; Anthony Gachagan

doi:10.1063/1.4789135

New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials

Timothy Lardner, Minghui Li, Rui Gongzhang, Anthony Gachagan

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

8 Citations (Scopus)

Abstract

In ultrasonic NDE, materials with coarse grains are difficult to inspect because a significant portion of energy will be reflected by the grains which cause speckle noise when imaging. Coarse grain materials are widely used in industry therefore a suitable inspection technique must be developed. This paper presents Spatially Averaged Sub-Array Correlation Imaging (SASACI), an advanced method that reduces speckle noise. SASACI was validated through comparison with the Total Focusing Method. A mean noise reduction of over 20dB SNR was observed when inspecting a highly scattering nickel alloy at 5MHz with a 128 element array.

Original language	English
Title of host publication	Review of Progress in Quantitative Nondestructive Evaluation
Editors	D.O. Thompson, D.E. Chimenti
Place of Publication	Melville
Pages	865-871
Number of pages	7
Volume	32A and 32B
DOIs	https://doi.org/10.1063/1.4789135
Publication status	Published - 2013
Event	39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE) - Denver, United States Duration: 15 Jul 2012 → 20 Jul 2012

Publication series

Name	AIP Conference Proceedings
Publisher	AIP
Volume	1511
ISSN (Print)	0094-243X

Conference

Conference	39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE)
Country/Territory	United States
City	Denver
Period	15/07/12 → 20/07/12

Keywords

ultrasound
beamforming
NDE
speckle
noise suppression technique
cross-correlation
ultrasonic NDE
coarse grain materials
array
sub-apertures

Access to Document

10.1063/1.4789135

New Methods For Ultrasonic NDE Of Difficult Materials
Gachagan, A. (Principal Investigator), Li, M. (Co-investigator), Mulholland, A. (Co-investigator) & O'Leary, R. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/08/11 → 31/07/14
Project: Research

Cite this

Lardner, T., Li, M., Gongzhang, R., & Gachagan, A. (2013). New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials. In D. O. Thompson, & D. E. Chimenti (Eds.), Review of Progress in Quantitative Nondestructive Evaluation (Vol. 32A and 32B, pp. 865-871). (AIP Conference Proceedings; Vol. 1511).. https://doi.org/10.1063/1.4789135

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title = "New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials",

abstract = "In ultrasonic NDE, materials with coarse grains are difficult to inspect because a significant portion of energy will be reflected by the grains which cause speckle noise when imaging. Coarse grain materials are widely used in industry therefore a suitable inspection technique must be developed. This paper presents Spatially Averaged Sub-Array Correlation Imaging (SASACI), an advanced method that reduces speckle noise. SASACI was validated through comparison with the Total Focusing Method. A mean noise reduction of over 20dB SNR was observed when inspecting a highly scattering nickel alloy at 5MHz with a 128 element array.",

keywords = "ultrasound, beamforming, NDE, speckle , noise suppression technique, cross-correlation, ultrasonic NDE, coarse grain materials, array, sub-apertures",

author = "Timothy Lardner and Minghui Li and Rui Gongzhang and Anthony Gachagan",

year = "2013",

doi = "10.1063/1.4789135",

language = "English",

isbn = "9780735411296",

volume = "32A and 32B",

series = "AIP Conference Proceedings",

publisher = "AIP",

pages = "865--871",

editor = "D.O. Thompson and D.E. Chimenti",

booktitle = "Review of Progress in Quantitative Nondestructive Evaluation",

note = "39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE) ; Conference date: 15-07-2012 Through 20-07-2012",

}

Lardner, T, Li, M, Gongzhang, R & Gachagan, A 2013, New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials. in DO Thompson & DE Chimenti (eds), Review of Progress in Quantitative Nondestructive Evaluation . vol. 32A and 32B, AIP Conference Proceedings, vol. 1511, Melville, pp. 865-871, 39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE), Denver, United States, 15/07/12. https://doi.org/10.1063/1.4789135

New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials. / Lardner, Timothy; Li, Minghui; Gongzhang, Rui et al.
Review of Progress in Quantitative Nondestructive Evaluation . ed. / D.O. Thompson; D.E. Chimenti. Vol. 32A and 32B Melville, 2013. p. 865-871 (AIP Conference Proceedings; Vol. 1511).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials

AU - Lardner, Timothy

AU - Li, Minghui

AU - Gongzhang, Rui

AU - Gachagan, Anthony

PY - 2013

Y1 - 2013

N2 - In ultrasonic NDE, materials with coarse grains are difficult to inspect because a significant portion of energy will be reflected by the grains which cause speckle noise when imaging. Coarse grain materials are widely used in industry therefore a suitable inspection technique must be developed. This paper presents Spatially Averaged Sub-Array Correlation Imaging (SASACI), an advanced method that reduces speckle noise. SASACI was validated through comparison with the Total Focusing Method. A mean noise reduction of over 20dB SNR was observed when inspecting a highly scattering nickel alloy at 5MHz with a 128 element array.

AB - In ultrasonic NDE, materials with coarse grains are difficult to inspect because a significant portion of energy will be reflected by the grains which cause speckle noise when imaging. Coarse grain materials are widely used in industry therefore a suitable inspection technique must be developed. This paper presents Spatially Averaged Sub-Array Correlation Imaging (SASACI), an advanced method that reduces speckle noise. SASACI was validated through comparison with the Total Focusing Method. A mean noise reduction of over 20dB SNR was observed when inspecting a highly scattering nickel alloy at 5MHz with a 128 element array.

KW - ultrasound

KW - beamforming

KW - NDE

KW - speckle

KW - noise suppression technique

KW - cross-correlation

KW - ultrasonic NDE

KW - coarse grain materials

KW - array

KW - sub-apertures

U2 - 10.1063/1.4789135

DO - 10.1063/1.4789135

M3 - Conference contribution book

SN - 9780735411296

VL - 32A and 32B

T3 - AIP Conference Proceedings

SP - 865

EP - 871

BT - Review of Progress in Quantitative Nondestructive Evaluation

A2 - Thompson, D.O.

A2 - Chimenti, D.E.

CY - Melville

T2 - 39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE)

Y2 - 15 July 2012 through 20 July 2012

ER -

Lardner T, Li M, Gongzhang R, Gachagan A. New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials. In Thompson DO, Chimenti DE, editors, Review of Progress in Quantitative Nondestructive Evaluation . Vol. 32A and 32B. Melville. 2013. p. 865-871. (AIP Conference Proceedings). doi: 10.1063/1.4789135

New speckle noise suppression technique using cross-correlation of array sub-apertures in ultrasonic NDE of coarse grain materials

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New Methods For Ultrasonic NDE Of Difficult Materials

Cite this