Interframe/interfield predictive encoding system

Details Interframe/interfield predictive encoding system Interframe/interfield predictive encoding system

1992-01-16

1993-09-28

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358141, H04N 7137

Patent

active

052490483

ABSTRACT:
An interframe/interfield encoding system is for coding an incoming video signal having a successive specific number of dependent frames/fields, and independent frames/fields located anterior and posterior to the dependent frames/fields on a time axis. The system has a predictor for generating prediction errors of the dependent frames/fields by the independent frames/fields and an encoder for coding the independent frames/fields and the prediction errors. The system also has a delay section delays coding the posterior independent frame/field by the specific number of dependent frames/fields on the time axis to the incoming video signal and a controller, responsive to the delaying, controls the encoder to encode the posterior independent frame/field so as to follow the coding of the prediction errors. The posterior independent frame/field, without being delayed, is employed for generation of the prediction errors.

REFERENCES:
patent: 4985768 (1991-01-01), Sugiyama
patent: 5049991 (1991-09-01), Niihara
patent: 5132792 (1992-07-01), Yonemitsu

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