Adaptive filter for use in color video signal processing

Details Adaptive filter for use in color video signal processing Adaptive filter for use in color video signal processing

1983-09-19

1987-01-20

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 31, 358 39, 358 36, H04N 977

Patent

active

046383514

ABSTRACT:
A filter is disclosed for adaptively filtering a PAL or NTSC luminance signal so as to attenuate the high frequency portion of the luminance band, wherein the chrominance information lies, when movement is detected. This reduces cross-color in the reproduced picture. Movement is detected by comparing the undelayed luminance signal with this signal delayed by an integral number of lines corresponding substantially to one field or one picture. The filter may precede a coder or follow a decoder.

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