Gaze tracking using multiple images
US7682025B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2008 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Feb 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/19
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for facilitating gaze tracking based on multiple images are disclosed. A gaze tracking system includes an optical module configured to receive illumination from a target and provide a background and tracking channel outputs, the background channel including ambient illumination and the tracking channel including ambient and controlled added illumination at a targeted range of wavelengths. The background and tracking channel outputs are provided to an imaging module configured to provide an associated set of background and tracking images to a processor module to facilitate gaze tracking. Controlled illumination of the target may be provided by an illumination element, in conjunction with the processor module, to facilitate gaze tracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.