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Proceedings Paper

Removing the pixel structure from projected images using a transparent spatial filter
Author(s): Shawn L. Kelly
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Paper Abstract

Electronic image projection systems generally suffer from dark grid (pixelation) or scan line structures which become more noticeable as the image is expanded. Since these structures represent a high spatial frequency error in the image, appropriate spatial filtering can be used to reduce this error and increase image fidelity. A new, transparent spatial filter is introduced and demonstrated to depixelize the image produced by a liquid crystal video projector. Various filter design and fabrication guidelines to achieve the best apparent image are also discussed.

Paper Details

Date Published: 1 July 1992
PDF: 7 pages
Proc. SPIE 1664, High-Resolution Displays and Projection Systems, (1 July 1992); doi: 10.1117/12.60359
Show Author Affiliations
Shawn L. Kelly, Cygnus Imaging Corp. (United States)

Published in SPIE Proceedings Vol. 1664:
High-Resolution Displays and Projection Systems
Elliott Schlam; Marko M.G. Slusarczuk, Editor(s)

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