Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1992-07-02
1993-12-14
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358133, H04N 7133, H04N 7137
Patent
active
052708136
ABSTRACT:
An adaptive technique for encoding and decoding which facilitates the transmission, reception, storage, or retrieval of a scalable video signal. The invention allows this scaling to be performed entirely in the spatial domain. In a specific embodiment of the invention this scaling is realized by adaptively encoding a video signal based upon a selection taken from among a multiplicity of predictions from previously decoded images, and a selection of compatible predictions obtained from up-sampling lower resolution decoded images of the current temporal reference. A technical advantage of the invention is that both the syntax and signal multiplexing structure of at least one encoded lower-resolution scale of video is compatible with the MPEG-1 standards.
REFERENCES:
patent: 4980764 (1990-12-01), Henot
International Standards Organization Committee Draft 11172-2, "Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5 Mbit/s," Nov. 1991.
"Video Coding Using the MPEG-1 Compression Standard," A. Puri, Proceedings of the Society for Information Display 92, May 1992, Boston.
Puri Atul
Wong Andria H.
AT&T Bell Laboratories
Britton Howard W.
Marley Robert P.
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