Apparatus for processing a television signal including a movement detector
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United States of America Patent
Stats
-
Oct 27, 1987
Grant Date -
N/A
app pub date -
Nov 15, 1985
filing date -
Mar 26, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A movement detector is included in television signal processing apparatus in order to improve the performance of the apparatus. The detector evaluates an absolute frame difference signal on a sample by sample basis and, after comparison with a threshold level signal in order to remove the effects of noise is fed to an isolated point removal circuit where samples deemed to indicate movement are compared with surrounding samples and if identified as isolated are ignored. Adaptive control is provided if the threshold, the isolated point removal circuit and a quantizer circuit for non-linearly altering the frame difference signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
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