A method for encoding images in a block-based manner employing block spatial prediction
CA 2614571 C · Owner: Karczewicz, Marta · Inventors: Vahteri, Joni; Dobrin, Bogdan-Paul; Karczewicz, Marta
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for encoding a digital image in a block-based manner the method comprises performing a prediction for a block to be coded with respect to a reference block wherein displacement between the block to be coded and the reference block is represented by a horizontal displacement and a vertical displacement; defining an ordered list of each possible horizontal and vertical displacements in a rank order; and providing a signal representative of the rank of the horizontal displacement and the vertical displacement in the ordered list.
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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 January 22, 2001 and granted March 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.