Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression
CA 2082641 A1 · Owner: Baker, Richard L. · Inventors: Thompson, Edmund; Bernstein, Jeffrey; Yuan, Xiancheng
Overview
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A method and apparatus for encoding interframe error data in an image transmission system and in, particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, Employ hierarchical entropy coded lattice threshold quantization to increase the data compression of the images being transmitted. The method and apparatus decimate an interframe predicated image data and an uncoded current image data, and apply hierarchical entropy coded lattice threshold quantization encoding to the resulting pyramid data structures. Lossy coding is applied on a level-by-level basis for generating the encoded data representation of the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2011.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.