Abstract

Low-light-level input images are cross correlated with a classical intensity reference image that is stored in computer memory. Experimental measurements of the correlation signal, obtained using a two-dimensional, photon-counting detector and position-computing electronics, are reported. The experimental results are in good agreement with theoretical predictions.

© 1985 Optical Society of America

Image correlation at low light levels: a computer simulation

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Appl. Opt. 23(18) 3152-3159 (1984)

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Image classification at low light levels

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