System for efficiently coding a moving-picture signal, capable o

Details System for efficiently coding a moving-picture signal, capable o System for efficiently coding a moving-picture signal, capable o

1989-12-22

1991-03-12

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 712

Patent

active

049997041

ABSTRACT:
An efficient coding system for a moving picture signal is provided, which comprises a large number of detection elements for individually picture signals corresponding to respective frames of a plurality of successive frames, a plurality of group signal detection elements for detecting, as a set of groups, picture signals with respect of the entirety of a plurality of detection elements constituting several successive groups, each group comprised of a several number of the detection elements, a change quantity detection element for detecting in sequence change quantities of signals of two successive groups, a judgment element for judging whether or not the change quantity is above a predetermined quantity, a plurality of efficient coding elements of different types for predicting a difference between the picture signals and coding it, or for coding it on the basis of polarization of a power spectrum of the picture signals in order to remove redundancy of a group of the picture successive signals to code them, and a select element for selecting and outputting data having a smaller data content coded by the coding elements when the change quantity of the picture signals is above the predetermined quantity.

REFERENCES:
patent: 4485402 (1984-11-01), Searby

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