Motion compensating system using interlace-to-sequential scan co

Details Motion compensating system using interlace-to-sequential scan co Motion compensating system using interlace-to-sequential scan co

1989-12-12

1994-10-04

Shepperd, John

Television

Format conversion

Line doublers type

H04N 1120

Patent

active

053531183

ABSTRACT:
For a digital television including an analog/digital converter for converting interlaced scanning video signals into digital video signals, a motion compensating system comprises a color/brightness signal separator for separating the signal and the brightness signal of said digital video signal from each other; a picture transition sensing stage for detecting the amount of the horizontal and time motion of the picture by said brightness signal and the amount of the vertical transistion of the picture by said digital video signal to compare and compensate the two amounts, obtaining the signal of sensing the amount of the motion of the picture; and a mixer for interpolating the color signal, the brightness signal of the color/brightness separator and compensating the interpolated color signal and the brightness signal and the present color signal and the present brightness signal with the signal of the sensed amount of motion of the picture generated by the picture transition sensing stage.

REFERENCES:
patent: 4612567 (1986-09-01), Pritchard
patent: 4672445 (1987-06-01), Casey et al.
patent: 4831463 (1989-05-01), Faroudja
IEEE Communications Society "IEEE Global Telecommunications Conference" Dec. 2-5, 1985 NTS-Full Compatible Extended-Definition TV-Proto Model and Motion Adaptive Processing.
Rossi, Digital Technique for Reducing Television Noise, SMPTE Journal Mar. 1978 vol. 87 pp. 134-140.
Storey, HDTV Motion Adaptive Bandwidth Reduction Using DATV BBC Report PH-280 1986 p. 4.

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