Method and device for picture compression using a plurality...

Details Method and device for picture compression using a plurality... Method and device for picture compression using a plurality...

2001-09-20

2009-12-15

Lee, Young (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07634009

ABSTRACT:
In order to realize effective picture compression without significantly impairing the resolution, it is proposed that the picture to be compressed be subdivided into a plurality of picture areas, for example into picture blocks each having 16×16 pixels, and the picture areas be subdivided into a plurality of layers, in particular into three layers, which correspond to different sampling patterns. The pixels (13-15) of a layer are in each case predicted from adjacent pixels of the other layers, in particular of the already previously processed and coded layers, the prediction area being coded. The invention is suitable in particular for use in video coders or video decoders with motion-compensated prediction, in order to compress the reference picture to be stored in a reference picture memory (5).

REFERENCES:
patent: 5210605 (1993-05-01), Zaccarin et al.
patent: 5682205 (1997-10-01), Sezan et al.
patent: 6100932 (2000-08-01), Boyce et al.
patent: 6704358 (2004-03-01), Li et al.
patent: 0 710 026 (1996-05-01), None
Rabbani et al., Digital Image Compression Techniques, pp. 192-193 and 199-202 (1991).
Patent Abstracts of Japan, Publication No. JP 10257502 A.

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