Patent · US Active

Systems and methods for eye tracking in virtual reality and augmented reality applications

US11917126B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

Tobii AB · SE

Inventors

Jonas Andersson · Stockholm, SE
Anders Clausen · Danderyd, SE
Richard Hainzl · Stockholm, SE
Anders Kingbäck · Danderyd, SE
Simon Olin · Danderyd, SE
Mark Ryan · McMinnville, US
Daniel Tornéus · Danderyd, SE
Björn Nutti · Danderyd, SE
Torbjörn Sundberg · Danderyd, SE
Catarina Tidbeck · Danderyd, SE
Ralf Biedert · Danderyd, SE
Niklas Blomqvist · Danderyd, SE
Dennis Rådell · Danderyd, SE
Robin Thunström · Danderyd, SE

Key dates

Filing date	Feb 24, 2023
Grant date	Feb 27, 2024
Priority date	—
Expiry date	Feb 24, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30244
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An augmented reality, virtual reality, or other wearable apparatus comprises an eye tracking device comprising an image sensor, a lens, and one or more processors. In some embodiments, the lens comprises a marker, and the one or more processors are configured to receive an image from the image sensor, wherein the image shows the marker, determine a distance from the image sensor to the marker based on the image, and change a calibration parameter of an eye tracking algorithm based on the distance. In some embodiments, the one or more processors are configured to receive image data from the image sensor, wherein the image data corresponds to an image as observed through the lens, determine a level or pattern of pincushion distortion in the image based on the image data, and change a calibration parameter of an eye tracking algorithm based on the level or the pattern of pincushion distortion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.