Method of detecting eye fixation using image processing
US5818954A · kind A · utility
58Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/19
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The inventive method calculates a position of the center of the eyeball as a fixed displacement from an origin of a facial coordinate system established by detection of three points on the face, and computes a vector therefrom to the center of the pupil. The vector and the detected position of the pupil are used to determine the visual axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.