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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 18 — Sep. 15, 1984
  • pp: 3152–3159

Image correlation at low light levels: a computer simulation

G. Michael Morris  »View Author Affiliations


Applied Optics, Vol. 23, Issue 18, pp. 3152-3159 (1984)
http://dx.doi.org/10.1364/AO.23.003152


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Abstract

The effectiveness of photon-limited image correlation for recognition of realistic imagery is investigated. The correlation signal is obtained by cross correlating a low light-level input scene and a high light-level reference image. The dependence of the probability density function of the correlation signal on the average number of detected photoevents and on the number of gray levels in the images is illustrated. Monte Carlo simulations of image correlation using low light-level scenes are found to be in close agreement with the theoretical predictions.

© 1984 Optical Society of America

History
Original Manuscript: April 16, 1984
Published: September 15, 1984

Citation
G. Michael Morris, "Image correlation at low light levels: a computer simulation," Appl. Opt. 23, 3152-3159 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-18-3152

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