System for transmitting encoded image data with quick image expa

Details System for transmitting encoded image data with quick image expa System for transmitting encoded image data with quick image expa

1991-08-20

1993-07-13

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358432, 364725, H04N 712

Patent

active

052278751

ABSTRACT:
A system for transmitting encoded image data capable of transmitting the multiple view image data, without causing a significant level of an increase of a size of the system, a delay in a data transmission, and a limitation on a number of communication channels. The system includes: an image encoder for encoding orthogonal transform coefficient data obtained by applying an orthogonal transform to image data, and transmitting encoded image data in which the encoded orthogonal transform coefficient data are classified according to their degrees; an image processing for transmitting processed image data containing the encoded orthogonal transform coefficient data in the encoded image data along with a size change rate information indicating a size change rate by which a size of the image data are to be changed; and an image decoder for decoding the encoded orthogonal transform coefficient data in the processed image data into a degree corresponding to the size change rate indicated by the size change rate information in the processed image data by applying an inverse orthogonal transform of said degree to the encoded orthogonal transform coefficient data.

REFERENCES:
patent: 4851906 (1989-07-01), Koga et al.
patent: 4860097 (1989-08-01), Hartnack et al.
patent: 5091782 (1992-02-01), Krause et al.
"A Study on the Multipoint Communication Unit"; H. Shimizu et al: 1991 Spring National Convention, EiC B-801, 1991.
"Study on ATM Switch Architecture for Point-to-Multipoint Connections"; T. Nisase, et al: EiC SSE 89-59, 1989.
"HDTV-Standard TV Compatible Coding Method by Adaptive Block Construction DCT"; Y. Yashima et al: 1989 Autumn National Convention, EiC D-54, 1989.

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