Method and device for compressing image data

Details Method and device for compressing image data Method and device for compressing image data

1997-08-26

2000-09-05

Tran, Phuoc

Image analysis

Image compression or coding

Transform coding

382250, G06K 936, G06K 946

Patent

active

061155004

ABSTRACT:
Zigzag scanning is one of the key techniques in image data compression. An efficient method and device is needed in some dedicated cases. In the present invention, a fixed delay is performed between DCT and zigzag scan to make the present invention simple. The present invention requires only half the number of transistors compared to the prior art.

REFERENCES:
patent: 5146324 (1992-09-01), Miller et al.
patent: 5434673 (1995-07-01), Inoue et al.
patent: 5510904 (1996-04-01), Itoi
patent: 5659362 (1997-08-01), Kovac et al.

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