Probabilistic anti-aliasing methods for dynamic variable resolution images

Francesco M. Panerai; Richard D. Juday

doi:10.1117/12.258217

14 November 1996 Probabilistic anti-aliasing methods for dynamic variable resolution images

Francesco M. Panerai, Richard D. Juday

Proceedings Volume 2847, Applications of Digital Image Processing XIX; (1996) https://doi.org/10.1117/12.258217
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Francesco M. Panerai and Richard D. Juday "Probabilistic anti-aliasing methods for dynamic variable resolution images", Proc. SPIE 2847, Applications of Digital Image Processing XIX, (14 November 1996); https://doi.org/10.1117/12.258217

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