Television – Bandwidth reduction system – Data rate reduction
Patent
1992-10-29
1994-10-11
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348407, 348409, 348411, 348412, 348402, H04N 7137
Patent
active
053551680
ABSTRACT:
A motion compensation apparatus for receiving information on motion vectors and for performing a motion compensation of dynamic image signals with a precision equal to or finer than one pixel. The information on motion vectors has been estimated from a reference field or frame represented by a reference field signal or a reference frame signal and from other fields or other frames represented by other field signals or frame signals. The motion compensation apparatus is provided with a coefficient determination device for determining resampling coefficients corresponding to signals which are generated by combining the other field (or frame) signals according to mutual relations among values equal to or less than a pixel distance, which values are respectively indicated by the motion vectors, and image shifting devices for resampling and adding up the field (or frame) signals by using the sampling coefficients to obtain image signals representing shifted pixels, which are motion-compensated with the precision that is equal to or finer than one pixel.
REFERENCES:
patent: 4838685 (1989-06-01), Martinez et al.
patent: 5148269 (1992-09-01), de Haan et al.
patent: 5157742 (1992-10-01), Niihara
patent: 5170259 (1992-12-01), Niihara
patent: 5212548 (1993-05-01), de Haan et al.
Fourth International Colloquium on Advanced Television Systems--Ottawa, CA--Jun. 25-29, 1990, pp. 3B.3.1-3B.3.19, DuBois et al. `Review of Techniques for Motion Estimation and Motion Compensation`.
International Broadcasting Convention--Brighton, UK--Sep. 23-27, 1988, pp. 256-259, Thomas `Distorting the Time Axis: Motion-Compensated Image Processing in the Studio`.
Chin Tommy P.
Le Vu
Victor Company of Japan Ltd.
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