Speckle depixelator
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United States of America Patent
Stats
-
Aug 31, 1999
Grant Date -
N/A
app pub date -
Apr 21, 1995
filing date -
Jan 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A depixelator for improving the image generated by a pixelated image generator, using a non-periodic optic element, is provided. By providing a non-periodic optic element, artifacts such as moire patterns generated by periodic devices such as crossed-gratings, can be reduced or eliminated. The optic device preferably includes a plurality of randomly spaced and/or sized dimples or specks for diffracting a substantial portion of light from pixels into interpixel regions, with the depth of the specks preferably smoothly varying across the surface.
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Cited Art Landscape
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