Petcher, P. A. and Dixon, S. (2012) Parabola detection using matched filtering for ultrasound B-scans. Ultrasonics, Vol.52 (No.1). pp. 138-144. doi:10.1016/j.ultras.2011.07.006 ISSN 0041-624X.

Research output not available from this repository.

Request-a-Copy directly from author or use local Library Get it For Me service.

Request Changes to record.

Abstract

Time of flight diffraction (ToFD) outputs B-scans using an ultrasound emitter and receiver at a constant separation, scanned over a sample surface parallel to the line between the transducers. The B-scan, with time and scan position axes, contains parabolic features characteristic of a point-like scatterer. Human vision effectively detects these shapes, but this is time consuming and requires training. A parabola matched filter has been developed that is simple to implement and transforms parabolic shapes to peaks whilst reducing noise in the scan. The scan can then be displayed as depth versus lateral position.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	Time-of-flight mass spectrometry, Image processing, Surfaces (Technology) -- Defects, Ultrasonics, Parabola
Journal or Publication Title:	Ultrasonics
Publisher:	Elsevier Science BV
ISSN:	0041-624X
Official Date:	January 2012
Dates:	Date Event January 2012 Published
Volume:	Vol.52
Number:	No.1
Page Range:	pp. 138-144
DOI:	10.1016/j.ultras.2011.07.006
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item