Method of coding images at very low data rate and coding/decoding device implementing this method
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United States of America Patent
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Jun 17, 2003
Grant Date -
N/A
app pub date -
Mar 14, 1994
filing date -
Mar 3, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for differential coding of blocks of images includes coding the difference between a current block of an image to be transmitted and one of four blocks of the reconstructed current image in the closest vicinity of the current block. The device includes a differential image coding structure having a quantifier coupled to a variable-length coding device, a predictor and a device for reconstruction of the transmitted image coupled to a first image memory. The device further includes a second image memory for storing image blocks previously reconstructed in the image preceding the current image.
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