Peter Blixt,Anders Hoglund,Bengt Rehnstrom,John Elvesjö
申请号：
US12750967
公开号：
US08220926B2
申请日:
2010.03.31
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A visual display characterized by hidden reference illuminators is 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 for gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. A system and method for determining a gaze point of an eye watching a visual display comprising reference illuminators are further provided. The determination of the gaze point may be based on an ellipsoidal cornea model.
