Feature correlation for weld image-processing applications

Template matching or correlation is an image-processing technique that searches for specific features or characteristics within an image. This paper describes the use of a configurable feature correlation method for the reliable processing of high quality digitized welding images in order to supply...

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Vydáno v:International journal of production research Ročník 42; číslo 5; s. 975 - 995
Hlavní autoři: Balfour, C., Smith, J. S., Amin-Nejad, S.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Taylor & Francis Group 01.03.2004
ISSN:0020-7543, 1366-588X
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Shrnutí:Template matching or correlation is an image-processing technique that searches for specific features or characteristics within an image. This paper describes the use of a configurable feature correlation method for the reliable processing of high quality digitized welding images in order to supply measurements for use with a closed loop control system. A generic approach has been adopted to produce a versatile and robust image-processing technique capable of analysing and providing measurements from images with different properties or characteristics. Low cost, commercially available image acquisition hardware was used, and the image-processing software development was undertaken using a commonly available PC-based visual programming environment. The general application of this work has been concerned with the demonstration of vision-based closed loop process control strategies for a series of different welding processes. Closing the process control loop in this manner is believed to represent a significant advancement of the vision-based remote viewing or 'monitoring' systems that are presently available.
Bibliografie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0020-7543
1366-588X
DOI:10.1080/00207540310001619632