Patent · US Active

Eye tracking system

US12374071B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

Tobii AB · SE

Inventors

Viktor Wase · Danderyd, SE
Erik Ljungzell · Danderyd, SE
Mark Ryan · McMinnville, US
Chiara Giordano · Danderyd, SE
Rickard Lundahl · Danderyd, SE
Pravin Kumar Rana · Danderyd, SE

Key dates

Filing date	Aug 27, 2021
Grant date	Jul 29, 2025
Priority date	—
Expiry date	Jul 11, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/19
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An eye tracking system is provided that detects the presence of problematic blobs in an image captured by the system and removes these problematic blobs by switching off illuminators. Problematic blobs may be those obscuring the pupil of the eye of the user. Each blob is detected in a first image by the use of at least one first criterion, and then an illuminator is switched off. After the illuminator is switched off, at least one second criterion is used to identify blobs in a subsequent image. This process may be repeated until the illuminator causing the problematic blob is identified.

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