Image analysis – Image compression or coding – Adaptive coding
Reexamination Certificate
2006-04-04
2006-04-04
Chen, Wenpeng (Department: 2625)
Image analysis
Image compression or coding
Adaptive coding
C382S240000, C709S233000
Reexamination Certificate
active
07024045
ABSTRACT:
The present invention provides a method and apparatus for a bandwidth adaptive image compression/decompression scheme. In one embodiment, the present invention uses a special protocol between the sender and the receiver to measure the latency of the connection. This protocol and its result are sent and received at an interval based on a dynamic feedback loop algorithm. Based on the results of the protocol, a compression scheme is chosen. This scheme uses CPU time conservatively, and also transmits the most interesting data first. In another embodiment, the present invention throws away data that is repetitious, especially when the connection is down for a short period of time. In yet another embodiment of the present invention, measurements are taken for the perceptual degradation of the image for various compression schemes, and the results are supplemented with the results of the protocol to choose a viable compression/decompression scheme.
REFERENCES:
patent: 5764807 (1998-06-01), Pearlman et al.
patent: 5991458 (1999-11-01), Kunitake et al.
patent: 6031939 (2000-02-01), Gilbert et al.
patent: 6195388 (2001-02-01), Choi et al.
patent: 6442603 (2002-08-01), Borella
patent: 6529631 (2003-03-01), Peterson et al.
patent: 6567117 (2003-05-01), Nago et al.
patent: 6779040 (2004-08-01), Lee et al.
patent: 2002/0021753 (2002-02-01), Igi et al.
patent: 2002/0181408 (2002-12-01), Sirivara et al.
Chen Wenpeng
Gunnison McKay & Hodgson, L.L.P.
McKay Philip J.
Sun Microsystems Inc.
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