Hybrid coding system for moving image
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United States of America Patent
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-
May 26, 1992
Grant Date -
N/A
app pub date -
Mar 1, 1991
filing date -
Mar 2, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A moving image is coded through a waveform coding predictor (2), and a model-based coding predictor (3) which is mainly applicable to a head portion of a person, the coded outputs of said two predictors are compared (5) with an input current image for each block element which has for instance 8.times.8 or 16.times.16 pixels. A block element coded for the smaller difference from an input current image is taken, and is transmitted to a receiving side through differential coding (6,7). As the information compression ratio is high, a moving image can be transmitted through conventional telephone line, or a narrow band circuit.
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