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Proceedings Paper

Probabilistic anti-aliasing methods for dynamic variable resolution images
Author(s): Francesco M. Panerai; Richard D. Juday
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Paper Abstract

We have attained initial function of a real-time acuity- based video transformation. It matches the transmitted local resolution of video images to the eccentrically-varying acuity of the viewer's human visual system. In previous variable resolution imagery, a variable blockiness produces disturbing aliasing effects. We show how probabilistic methods can be useful to perform anti-aliasing on the variable resolution images, so that smoothing interpolation need not be done to defeat the aliasing. Especially when used in dynamic imaging, the methods consistently reduce the high frequency artifacts perceived by the human eye. The effectiveness of these techniques have been demonstrated with the NASA/Texas Instrument Programmable Remapper, which is able to apply the anti-aliasing methods on the fly on the low bandwidth, acuity-based video signal Video imagery will be shown to demonstrate the technique.

Paper Details

Date Published: 14 November 1996
PDF: 9 pages
Proc. SPIE 2847, Applications of Digital Image Processing XIX, (14 November 1996); doi: 10.1117/12.258217
Show Author Affiliations
Francesco M. Panerai, Univ. of Genoa (Italy)
Richard D. Juday, NASA Johnson Space Ctr. (United States)

Published in SPIE Proceedings Vol. 2847:
Applications of Digital Image Processing XIX
Andrew G. Tescher, Editor(s)

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