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Proceedings Paper

Application of an Optical Correlator to Industrial Inspection
Author(s): S D Searle; A G Levenston; C Stace; H White; S Parker
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Paper Abstract

A real-time Vander Lugt correlator for the automatic recognition, location and inspection of objects from direct imaging or TV camera input is described. Techniques to cope with changes due to scale and rotation are discussed. These include: (i) Image rotation with dove prisms. (ii) Multiple matched spatial filters by parallel addressing. (iii) Selective spatial filtering. Example results from an inspection task are presented.

Paper Details

Date Published: 17 November 1986
PDF: 10 pages
Proc. SPIE 0654, Automatic Optical Inspection, (17 November 1986); doi: 10.1117/12.938287
Show Author Affiliations
S D Searle, British Aerospace plc Naval Weapons Division (England)
A G Levenston, British Aerospace plc Naval Weapons Division (England)
C Stace, British Aerospace plc Naval Weapons Division (England)
H White, British Aerospace plc Naval Weapons Division (England)
S Parker, British Aerospace plc Naval Weapons Division (England)


Published in SPIE Proceedings Vol. 0654:
Automatic Optical Inspection
Lionel R. Baker; H. John Caulfield, Editor(s)

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