Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-03-02
1990-08-21
Peng, John K.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358135, 358140, 358105, H04N 712, H04N 701, H04N 718
Patent
active
049511386
ABSTRACT:
A method provides greater reduction in the throughput rate and, at the same time, greater fidelity to the configuration of an HD source image. The method is applied to a multiprocessing system wherein, within the picture or picture image blocks, "neutral" processing mode picture elements are determined, namely picture elements capable of accepting, without discrimination, at least two distinct sub-sampling processing modes; and it is chosen to associate, with each of the neutral processing mode picture elements, the one of the neutral processing modes that enables an optimal reduction in the throughput rate of the assistance data.
REFERENCES:
patent: 4485401 (1984-11-01), Tan et al.
patent: 4542411 (1985-09-01), Imanaka et al.
patent: 4633325 (1986-12-01), Usubuchi
patent: 4731664 (1988-03-01), Nishiwaki et al.
patent: 4772947 (1988-09-01), Kono
Collogue TVHD 87, Ottawa, Oct. 4-8, 1987, pp. 6.2.2-6.2.28, Analyse de Structures de Sous-Echantillonnage Spatio-Temporel d'un Signal TVHD en vue de sa Transmission dans un Canal MAC, P. Bernard, M. Veillard, CCETT-Rennes-France Sommaire.
L'Etat Francais (CNET)
Peng John K.
Telediffusion de France
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