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Proceedings Paper

Subpixel resolution of targets in imagery from mosaic detector arrays
Author(s): James F. Boulter
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Paper Abstract

We describe a technique for digitally processing a sequence of images obtained with a staring mosaic detector array to permit the resolution of features smaller than the spacing between individual detector elements. It is based on combining the sequence of images to obtain an effective higher spatial sampling rate and Nyquist cutoff frequency, and then deconvolving the finite size of the detector elements as well as other sources of blurring. Application of the technique to surveillance imagery obtained in fixed stare, target autotrack, and pushbroom scanning modes is addressed. We provide a theoretical description of the sub-pixel resolution technique, the results of a simulation study, and a demonstration using experimental data.

Paper Details

Date Published: 25 August 1992
PDF: 11 pages
Proc. SPIE 1698, Signal and Data Processing of Small Targets 1992, (25 August 1992); doi: 10.1117/12.139402
Show Author Affiliations
James F. Boulter, Defence Research Establishment Valcartier (Canada)

Published in SPIE Proceedings Vol. 1698:
Signal and Data Processing of Small Targets 1992
Oliver E. Drummond, Editor(s)

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