Peter Blixt,Anders Kingback,Bengt Rehnstrom,John Elvesjö,Mattias Kuldkepp
申请号：
US16229165
公开号：
US20190302882A1
申请日:
2018.12.21
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.
