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Proceedings Paper

Antialiasing algorithm for focal plane arrays
Author(s): Alan H. Lettington; Qi He Hong
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Paper Abstract

The use of focal plane arrays introduces an aliasing problem which transfers higher spatial frequencies onto lower frequency regions and restricts the available spatial resolution or field of view. An anti-aliasing interpolation algorithm has been developed to improve this spatial resolution. The image is initially expanded to the required size with a usable lower frequency region which contains the aliased higher frequency components. A maximum likelihood criterion is then applied to estimate this higher frequency information based on a statistical image model, so that the aliasing effect can be reduced.

Paper Details

Date Published: 22 May 1995
PDF: 7 pages
Proc. SPIE 2470, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing VI, (22 May 1995); doi: 10.1117/12.210043
Show Author Affiliations
Alan H. Lettington, Univ. of Reading (United Kingdom)
Qi He Hong, Univ. of Reading (United Kingdom)

Published in SPIE Proceedings Vol. 2470:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing VI
Gerald C. Holst, Editor(s)

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