Application of an Optical Correlator to Industrial Inspection

S D Searle; A G Levenston; C Stace; H White; S Parker

doi:10.1117/12.938287

17 November 1986 Application of an Optical Correlator to Industrial Inspection

S D Searle, A G Levenston, C Stace, H White, S Parker

Proceedings Volume 0654, Automatic Optical Inspection; (1986) https://doi.org/10.1117/12.938287
Event: 1986 International Symposium/Innsbruck, 1986, Innsbruck, Austria

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.

Citation Download Citation

S D Searle, A G Levenston, C Stace, H White, and S Parker "Application of an Optical Correlator to Industrial Inspection", Proc. SPIE 0654, Automatic Optical Inspection, (17 November 1986); https://doi.org/10.1117/12.938287

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available