Television – Bandwidth reduction system – Data rate reduction
Patent
1994-05-04
1995-05-02
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348407, 348413, 375252, H04N 7137
Patent
active
054124301
ABSTRACT:
In high efficiency coding of a motion image signal in transmission or recording of the motion image signal, plural prediction signals are determined by independently compensating a motion of reproduction signals of plural frames positioned before a frame to be coded. A linear combination of these prediction signals is used as derived a prediction signal. An error of the frame to be coded and the derived prediction signal is coded. As a result, the distortion of the prediction signal, that is, the prediction error is reduced, and the coding efficiency is enhanced.
REFERENCES:
patent: 4703351 (1987-10-01), Kondo
patent: 4833535 (1989-05-01), Ozeki
patent: 5159448 (1992-10-01), Kojima
MPEG 91/228, Proposal Package, "Coded Representation of Picture and Audio Information", Nov., 1991.
IEEE Transactions of Communications, vol. 35, No. 6, Jun. 1987, pp. 637-645, Murakami et al., "15/30 Mbits/s Universal Digital TV Codec Using a Median Adaptive Predictive Coding Method", *paragraph IIA--paragraph IIB*.
Signal Processing: Image Communication, vol. 2, No. 2, Aug. 1990, Amsterdam, pp. 127-144, Puri et al., "Video Coding With Motion-Compensated Interpolation for CD-Rom Applications", *paragraph 4*.
Britton Howard W.
Matsushita Electric - Industrial Co., Ltd.
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