Head pose assessment methods and systems
US7391888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Oct 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Improvements are provided to effectively assess a user's face and head pose such that a computer or like device can track the user's attention towards a display device(s). Then the region of the display or graphical user interface that the user is turned towards can be automatically selected without requiring the user to provide further inputs. A frontal face detector is applied to detect the user's frontal face and then key facial points such as left/right eye center, left/right mouth corner, nose tip, etc., are detected by component detectors. The system then tracks the user's head by an image tracker and determines yaw, tilt and roll angle and other pose information of the user's head through a coarse to fine process according to key facial points and/or confidence outputs by pose estimator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.