Eye tracking device calibration
US10884494B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The technology described herein generically calibrates the eye tracking apparatus in a head-mounted display (HMD) device making user-specific calibration unnecessary. The eye tracking apparatus uses one or more cameras to view the eyes of the user wearing the HMD device. From the images captured of the user's eyes, the generically calibrated HMD is able to determine a gaze direction for the user without the user needing to perform a user-specific calibration. The present technology bypasses the need for understanding user specific eye characteristics, such the shape of pupil and iris (ellipticity), by training a machine learning model on a large number of diverse eye images taken in diverse conditions. The machine learning model may take on the form of a convolutional neural network or some other regression based machine learning technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.