Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-11-23
1990-10-23
Kostak, Vic
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358136, H04N 718, H04N 712
Patent
active
049656660
ABSTRACT:
An arrangement for estimating motion in a sequence of picture comprising first, second and third picture stores (10, 20, 30) arranged in series to ensure the permanent storage of three respective consecutive pictures denoted, for example, by their rank 2k, 2k+1, 2k+2 in the sequence of pictures, and a recursive displacement estimator (40) receiving the outputs of said first and third picture stores to update at each extension of the classifying tree the displacement vectors relating to the junctions of the tree and the send them to a delayed-decision circuit (50), said delayed-decision circuit receiving said updating information and also the outputs of said picture stores and supplying, for each block preceding the current block of L blocks, the information of the group in which this preceding block and the information of the corresponding displacement vector is finally classified. This arrangement is more specifically suitable for use in the transmission of high-definition television pictures, and also for use in the field of teleconferencing or the field of picture recording.
REFERENCES:
patent: 4232338 (1980-11-01), Netrarali
patent: 4766490 (1988-08-01), Haghiri
patent: 4816914 (1989-03-01), Ericsson
patent: 4849810 (1989-07-01), Ericsson
patent: 4875094 (1989-10-01), Haghiri et al.
"Movement Compensated Interframe Prediction for NTSC Color TV Signals", Sabri, IEEE Transaction, vol. Com 32#8; Aug. '84.
Kostak Vic
Marion Michael E.
U.S. Philips Corporation
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