Method and apparatus for encoding/decoding image signal

Details Method and apparatus for encoding/decoding image signal Method and apparatus for encoding/decoding image signal

1985-12-24

1988-01-26

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358138, 375 29, H04N 713

Patent

active

047220023

ABSTRACT:
The apparatus has encoder and decoder units. The encoder unit is arranged such that a pulse sequence for minimizing the difference between an input image signal and a synthesized signal obtained by supplying the pulse sequence to a transmitting synthesizing filter is calculated and the pulse sequence is encoded and transmitted. The decoder unit is arranged such that the signal received from the encoder unit is decoded, a decoded signal is supplied to a receiving synthesizing filter and the receiving synthesizing filter generates a decoder image signal corresponding to the input image signal.

REFERENCES:
patent: 4145675 (1979-03-01), Picquendar
patent: 4185325 (1980-01-01), Appel
patent: 4368487 (1983-01-01), Sabri
patent: 4558350 (1985-12-01), Murakami
Improved Pulse Search Algorithm for Multi-Pulse Excited Speech Coder.
Motion-Compensated Television Coding: Part 1.
Scene Adaptive Coder.
A new Model of LPC Excitation for Producing Natural-Sounding Speech at Low Bit Rates.

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