Detection of gaze point assisted by optical reference signal
US9495589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2009 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gaze-point detection system includes at least one infrared (IR) signal source to be placed in a test scene as a reference point, a pair of eye glasses to be worn by a person, and a data processing and storage unit for calculating a gaze point of the person wearing the pair of eye glasses. The pair of eye glasses includes an image sensor, an eye-tracking unit and a camera. The image sensor detects IR signals from the at least one IR signal source and generates an IR signal source tracking signal. The eye-tracking unit determines adapted to determine the gaze direction of the person and generates an eye-tracking signal, and the camera acquires a test scene picture. The data processing and storage unit communicates with the pair of eye glasses and calculates the gaze point relative to the test scene picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.