Motion adaptive luminance signal and color signal separating fil

Details Motion adaptive luminance signal and color signal separating fil Motion adaptive luminance signal and color signal separating fil

1992-09-04

1994-06-28

Groody, James J.

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

348669, H04N 978

Patent

active

053251865

ABSTRACT:
A filter for separating a color signal and a luminance signal from a composite color television signal in which the frequency of said color signal is multiplexed in a high-frequency region of the luminance signal. In response to the movement of a picture, an appropriate filter is selected from a filter utilizing interframe correlation, a filter utilizing interfield correlation and a filter utilizing the infield correlation. A plurality of filters utilizing filed correlation are prepared and a color signal and a luminance signal are separated by the processing of a principal pixel, which is an object of processing, and pixels different from each other. A filter is selected in accordance with the correlation state between the principal pixel and the pixels therearound.

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patent: 5023713 (1991-07-01), Nishigori

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