Motion image decoding method and apparatus for judging contamination regions
CA 2180411 C · Owner: Sekiguchi, Shunichi · Inventors: Asai, Kohtaro; Sekiguchi, Shunichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
If an error is detected during the decoding of motion image data a portion of the image is lost and image quality deteriorates even after correction. When motion compensation prediction is used the image quality of subsequent pictures can also be adversely affected. This apparatus has a bit stream analysis portion for analyzing each macro block of a moving image, a contaminated region registering portion for registering a region as a contaminated region if an error has been detected during analysis, a motion vector selection portion for determining a predicted image to be used for motion compensation prediction, a contaminated region judging portion for judging whether or not a predicted …
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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 July 3, 1996 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2018.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.