Data coding method and apparatus using a plurality of blocks of

Details Data coding method and apparatus using a plurality of blocks of Data coding method and apparatus using a plurality of blocks of

1995-05-05

1998-10-27

Couso, Jose L.

Image analysis

Image compression or coding

G06K 936

Patent

active

058287841

ABSTRACT:
In a data coding method for obtaining coded data by dividing input data into different-length division blocks, the input data is divided into different-length blocks in accordance with a distortion value indicative of an error between the input data and approximate data based on the input data; variable length quantized data is obtained by quantizing the approximate data associated with the input data of each of the blocks; status data indicative of the state in which the input data is divided into the blocks is obtained; and the coded data is obtained by combining the quantized data and the status data. When the input data is divided into a plurality of blocks of unequal lengths, the amount of the coded data is determined so that it is substantially coincident with a predetermined data amount.

REFERENCES:
patent: 4509194 (1985-04-01), Harrington
patent: 4831659 (1989-05-01), Miyaoka et al.
patent: 5608458 (1997-03-01), Chen et al.
patent: 5714950 (1998-02-01), Jeong et al.
patent: 5715004 (1998-02-01), Chun et al.

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