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

1990-10-12

1992-09-08

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 978

Patent

active

051463180

ABSTRACT:
A filter is used for separating a color signal and a luminance signal from a composite color television signal in which the frequency of the 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.

REFERENCES:
patent: 4853765 (1989-08-01), Katsumata
patent: 4870482 (1989-09-01), Yasuki
patent: 5023713 (1991-06-01), Nishigori
patent: 5051818 (1991-09-01), Mishima
ITEJ Technical Report vol. 12, No. 41, pp.13-17, TEBS '88-28 Oct. 1988).
Cooperative Processing for Improved NTSC Chrominance/Luminance Separation, By Christopher H. Strolle, SMPTE Journal, Aug. 1986, pp. 782-789.

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