Title:
SCALABLE VIDEO CODING AND DECODING
Document Type and Number:
WIPO Patent Application WO2000005898
Kind Code:
A3
Abstract:
A video encoding method and apparatus for adapting a video input to a bandwidth of a transmission channel of a network that includes determining the number N enhancement layer bitstreams capable of being adapted to the bandwidth of the transmission channel of a network. A base layer bitstream is encoded from the video input wherein a plurality of enhancement layer bitstreams are encoded from the video input. The enhancement layer bitstreams are based on the base layer bitstream, wherein the plurality of enhancement layer bitstreams complements the base layer bitstream and the base layer bitstream and N enhancement layer bitstreams are transmitted to the network.
Inventors:
LI WEIPING (US)
Application Number:
PCT/US1999/016638
Publication Date:
April 27, 2000
Filing Date:
July 21, 1999
Export Citation:
Assignee:
OPTIVISION INC (US)
LI WEIPING (US)
LI WEIPING (US)
International Classes:
H04N7/26; H04N7/30; H04N7/50; H04N21/6377; H04N21/658; (IPC1-7): H04N7/30
Domestic Patent References:
| WO1998027733A1 | 1998-06-25 |
Foreign References:
| EP0739139A2 | 1996-10-23 | |||
| DE19531004A1 | 1997-02-27 | |||
| EP0771119A2 | 1997-05-02 |
Other References:
GONZALES C ET AL: "FLEXIBLY SCALABLE DIGITAL VIDEO CODING", SIGNAL PROCESSING. IMAGE COMMUNICATION, vol. 5, no. 1 / 02, 1 February 1993 (1993-02-01), pages 5 - 20, XP000345610, ISSN: 0923-5965
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