Image analysis – Image compression or coding – Predictive coding
Patent
1994-12-23
1996-11-19
Gaffin, Jeffrey A.
Image analysis
Image compression or coding
Predictive coding
382247, 341107, 358467, H03M 700
Patent
active
055771327
ABSTRACT:
An image coding device for coding an input image of multi-level. In the image coding device, an input multi-level image is analyzed by an image analyzing portion, and update information to be used when a probability estimation value is generated is generated by an update value determining portion on the basis of adjoining pixel information as a result of the analysis by the image analyzing portion. Further, a probability estimation value is generated by a probability estimating portion on the basis of the update information generated by the update value determining portion and the result of the analysis by the image analyzing portion, and the input multi-level image is arithmetically coded by a code word generating portion on the basis of the probability estimation value generated by the probability estimating portion.
REFERENCES:
patent: 5023611 (1991-06-01), Chamzas et al.
patent: 5406282 (1995-04-01), Nomizu
patent: 5414423 (1995-05-01), Pennebaker
patent: 5416606 (1995-05-01), Katayama et al.
patent: 5422734 (1995-06-01), Kang
patent: 5442458 (1995-08-01), Rabbani et al.
Hiroshi Yasuda, "International Standard for Multi-Media Coding," (Japanese) published by Maruzen Co., Ltd., pp. 80-81.
Shigeo Kato and Yasuhiko Yasuda, "A State Degeneration Method for Source Encoding of Multi-Level Images," (Japanese), The Institute of Electronics, Information and Communication Engineers, Technical Report, IE80-108, pp. 1-6.
Imanaka et al., "High-Efficiency Coding Method of High-Tone Image," (Japanese), The '82 Institute of Electronics and Communication Engineers, Communication Section, National Convention S3-8, pp. 433-434.
IBM Journal of Research and Development, vol. 32, No. 6, Nov. 1988, p. 754.
Kamizawa Koh
Koshi Yutaka
Suzuki Kazuhiro
Yokose Taro
Fuji 'Xerox Co., Ltd.
Gaffin Jeffrey A.
Kost Jason L. W.
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