Arrangement for estimating motion in television pictures

Details Arrangement for estimating motion in television pictures Arrangement for estimating motion in television pictures

1990-03-09

1991-10-08

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, 358140, 358 11, H04N 718, H04N 712, H04N 701, H04N 1120

Patent

active

050559257

ABSTRACT:
The arrangement has an input (10) to receive a sequence of source pictures, a motion determining circuit (20) to supply a first motion vectors for all the elements of the pictures of the sequence to be processed, a coherence circuit (21) to supply a validation signal (KF) of the first motion vector, and a selection circuit (25), which is controlled by the coherence circuit, to supply a definitive motion vector on the basis of said first motion vector and at least one alternative motion vector. The coherence circuit comprises a first portion (30), to supply a first coherence signal (KS) related to a picture element, from, at least, motion vectors assigned to elements surrounding said picture element, and a second portion (32) to supply a second coherence signal from first coherence signals assigned to elements, corresponding to said element of a plurality of pictures of the sequence to be processed.

REFERENCES:
patent: 4383272 (1983-05-01), Netravali et al.
patent: 4703350 (1987-10-01), Hinman
patent: 4727422 (1988-02-01), Hinman
patent: 4864398 (1989-09-01), Avis et al.
patent: 4947248 (1990-08-01), Hienerwadel et al.
patent: 4965667 (1990-10-01), Trew et al.

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