Encoding and decoding of texture mapping data in textured 3D mesh models
US10552987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2018 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to the encoding and decoding of texture mapping data of a textured 3D object. A 3D object is usually represented by connectivity, geometry and property data. The texture data, belonging to the property data, include a texture image; a texture coordinates table having entries, each entry defining coordinates in the texture image; and texture indexes associating each vertex of a polygon in the 3D object with an entry in the texture coordinates table. The present invention proposes to search for and delete entry duplicates from the texture coordinates table. To reduce encoding complexity, the search and deletion are based on the connectivity data. This is to exploit redundancies between the mesh connectivity for the polygons within the 3D object and the texture connectivity for the texture polygons within the texture image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.