Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Patent
1997-07-14
2000-07-25
Faile, Andrew I.
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
348631, 348595, 348234, 358160, 358166, H04N 521
Patent
active
060942053
ABSTRACT:
In a method of enhancing a quality of a video signal (Yin), an absolute value (ST) of a first derivative of the video signal (Yin) is obtained (51-59), and the video signal (Yin) is processed (53-57, 61-69) in dependence upon the absolute value (ST) of the derivative of the video signal (Yin).
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Brown Reuben M.
Faile Andrew I.
Goodman Edward W.
U.S. Philips Corporation
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