Patent · US Active

Method for encoding/decoding a 3D mesh model that comprises one or more components

US9245355B2 · kind B2 · utility

4Cited by

18References

14Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Kang Ying Cai · Beijing, CN
Qu Qing Chen · Beijing, CN
Jun Teng · Beijing, CN

Key dates

Filing date	Jun 9, 2010
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Sep 29, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06T9/004
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system for the complete model and local coordinate system for a single triangle, an individual component coordinate system for each connected component is used. The component coordinate system is used to normalize the orientation of the respective component for quantization and de-quantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.