Apparatus and method for encoding a digital video signal

Details Apparatus and method for encoding a digital video signal Apparatus and method for encoding a digital video signal

1997-11-10

1999-02-23

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348700, 348416, H04N 736, H04N 514, H04N 964

Patent

active

058750037

ABSTRACT:
Apparatus and corresponding method which motion compensate encode a digital video signal pre-filtered in a first filter but use motion information derived from the same video signal pre-filtered in a second filter to encode the first-filtered video signal. A received digital video signal is filtered in a first pre-filter which has a controllable filter characteristic that varies in response to several characteristics of the received digital video signal. The originally received digital video signal also is filtered in a second pre-filter. A motion vector is derived from motion that is detected in the second filtered signal, and the first filtered video signal is motion compensated encoded using the derived motion vector of the second filtered video signal.

REFERENCES:
patent: 5260782 (1993-11-01), Hui
patent: 5285266 (1994-02-01), Jo
patent: 5361105 (1994-11-01), Iu
patent: 5499057 (1996-03-01), Kondo et al.
patent: 5635281 (1997-06-01), Ko et al.

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