Patent ID: 6373961
Filing Date: 2002-04-16
Classification: G06F,G06K,G06T

Abstract:
An eye controllable pointer system for determining a point of true gaze of a user with respect to a screen, comprising:a screen beacon including a plurality of light sources, the light sources fixed with respect to the screen and arranged noncollinearly; a helmet secured to the head of the user; a screen beacon tracking camera mounted on the helmet and situated to receive an image of the plurality of light sources, the screen beacon tracking camera producing a beacon tracking signal corresponding to the image received by the beacon tracking camera; an eye gaze tracker mounted on the helmet, the eye gaze tracker detecting a gaze direction of at least one eye of the user, and producing an eye tracking signal corresponding to the detected gaze direction; and a processor that receives the beacon tracking signal and the eye tracking signal and calculates a point of computed gaze of the user with respect to the screen as a function of the eye tracking signal and the beacon tracking signal.