Node structure for representing 3-dimensional objects using depth image
CA 2413058 C · Owner: Konouchine, Anton · Inventors: Han, Mahn-Jin; Ignatenko, Alexey Victorovich; Konouchine, Anton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A family of node structures for representing 3-dimensional objects using depth image are provided. These node structures can be adopted into MPEG-4 AFX for conventional polygonal 3D representations. Main formats of the family are Depthlmage PointTexture and Octreelmage. Depthlmage represents an object by a union of its reference images and corresponding depth maps. PointTexture represents the object as a set of colored points parameterized by projection onto a regular 2D grid. Octreelmage converts the same data into hierarchical octree-structured voxel model set of compact reference images and a tree of voxel-image correspondence indices. Depthlmage and Octreelmage have animated versions …
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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 November 27, 2002 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.