Image analysis – Image compression or coding – Transform coding
Patent
1997-12-08
1999-06-29
Couso, Jose L.
Image analysis
Image compression or coding
Transform coding
G06K 936
Patent
active
059179546
ABSTRACT:
An image processing system operates at reduced resolution to reduce computational complexity while remaining fully compatible with full resolution decoders. A video input signal is subsampled and encoded at the resulting lower resolution. The encoded signal is filled with zero terms to produce an encoded signal having the same number of terms as a full resolution encoded signal. In a motion-compensated hybrid coder, the decoder section also includes a subsampling system, so that the reconstructed video signal is produced at the same resulting lower resolution. The encoder section and the decoder section are each inverse functions of the other, eliminating a drift problem associated with prior systems.
REFERENCES:
patent: 4553165 (1985-11-01), Bayer
patent: 5089889 (1992-02-01), Sugiyama
patent: 5295203 (1994-03-01), Krause et al.
patent: 5311310 (1994-05-01), Jozawa et al.
patent: 5398078 (1995-03-01), Masuda et al.
patent: 5485210 (1996-01-01), Lim et al.
patent: 5544091 (1996-08-01), Watanabe
patent: 5552829 (1996-09-01), Kim et al.
patent: 5557330 (1996-09-01), Astle
patent: 5592569 (1997-01-01), Li
patent: 5651090 (1997-07-01), Moriya et al.
patent: 5684920 (1997-11-01), Iwakami et al.
patent: 5687256 (1997-11-01), Kimura et al.
Ericsson Staffan
Girod Bernd
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