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Optical Engineering

Time-averaged speckle reduction in scanning active imaging systems
Author(s): Jean-Robert Simard; Victor C. Aitken
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Paper Abstract

For scanning active imaging systems using direct detection, it is possible to adequately model the expected speckle noise. Modifications are introduced to the theory on speckle originally proposed by Goodman to take into account the scanning effect. The model presented here is verified experimentally for a scanning active imaging system using a CO2 laser (10.6 μm). A direct relation between the reduction in the speckle noise resulting from the scanning process and the imaging resolution is demonstrated.

Paper Details

Date Published: 1 April 1994
PDF: 7 pages
Opt. Eng. 33(4) doi: 10.1117/12.163157
Published in: Optical Engineering Volume 33, Issue 4
Show Author Affiliations
Jean-Robert Simard, National Defense of Canada (Canada)
Victor C. Aitken, National Defence of Canada (Canada)

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