Wavelet-based facial motion capture for avatar animation
US6580811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20064
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is embodied in an apparatus, and related method, for sensing a person's facial movements, features and characteristics and the like to generate and animate an avatar image based on facial sensing. The avatar apparatus uses an image processing technique based on model graphs and bunch graphs that efficiently represent image features as jets. The jets are composed of wavelet transforms processed at node or landmark locations on an image corresponding to readily identifiable features. The nodes are acquired and tracked to animate an avatar image in accordance with the person's facial movements. Also, the facial sensing may use jet similarity to determine the person's facial features and characteristic thus allows tracking of a person's natural characteristics without any unnatural elements that may interfere or inhibit the person's natural characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.