Eye movement analysis system
US5614967A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/113
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eye movement analysis system illuminates the surface of each eye, and calculates the movement of the eye from the image of the eye including the pupil and iris striation. The eye movement analysis system is made up of an image signal processor including a controller which calculates the movement of the eye as well as the respective positions of the center of the eye and the iris striation from the image of the eye and a RAM which holds the respective positions of the center of the eye and the iris striation, a display which displays the iris striation in different states before and after the positional analysis, and an operating section which stops changing the frame if the currently displayed iris striation is different from the previously specified iris striation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.