Data encoding and decoding system

Details Data encoding and decoding system Data encoding and decoding system

1994-10-14

1998-06-09

Couso, Jose L.

Image analysis

Image compression or coding

Predictive coding

382131, 382238, 382245, 382247, 348642, 348 27, 348 38, 3582611, 3582612, 358539, 358500, 359563, 380 54, 409165, G06K 936, G06K 946

Patent

active

057648042

ABSTRACT:
A data encoding system for encoding input color pixel data and outputting encoded data. The data encoding system includes a reference pixel generating device which outputs reference pixel data corresponding to the input color pixel data to be encoded; a predictor having a color order table which sets the color ranks of color codes for every reference pixel pattern, reads and outputs the color rank of the corresponding color code from the color order table on the basis of the color pixel data to be encoded and its reference pixel data; and an entropy encoding device which converts the color ranking data into encoded data and outputs the encoded data.

REFERENCES:
patent: Re33632 (1991-07-01), Nakamura
patent: 4344086 (1982-08-01), Mizuno
patent: 4652856 (1987-03-01), Mohiuddin et al.
patent: 4905297 (1990-02-01), Langdon, Jr. et al.
patent: 4934882 (1990-06-01), Phillips
patent: 5140412 (1992-08-01), Shishido et al.
patent: 5317428 (1994-05-01), Osawa et al.
Ikuro UENO et al., A Study on Markov Model Coding Of Palette Images Using Arithmetic Code, Apr. 1994, pp. 29-36.
"One Image Encoding Standard JBIG;" International Standard ISO/IEC11544/1993; pp. 26-50.

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