Method and apparatus for detecting the motion of image in a tele

Details Method and apparatus for detecting the motion of image in a tele Method and apparatus for detecting the motion of image in a tele

1987-09-29

1988-07-26

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 712

Patent

active

047604468

ABSTRACT:
A method and apparatus for detecting the motion of image in a television signal is intended for a decoder of a multiple subsampling transmission signal without an interframe aliased portion in a lower frequency region. In the method and apparatus for detecting the motion, a next-adjacent interframe difference signal, an immediate-adjacent interframe difference narrow-band signal and an immediate-adjacent interframe difference broad-band signal or compensated versions of these signals are combined with maximum-value selection circuits and a minimum-value selection circuit for selecting the maximum-value and minimum-value among these three sets of signals so that a proper motion signal is extracted from the transmission signal.

REFERENCES:
patent: 4337481 (1982-06-01), Mick et al.
patent: 4364087 (1982-12-01), Storey et al.
patent: 4482970 (1984-11-01), Barry
patent: 4663665 (1987-05-01), Tanaka et al.

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