SYSTEM AND METHOD OF DETECTING A GAZE OF A VIEWER

摘要

A method of determining a point or object on a digital display that is being gazed at by a viewer by capturing an image of the viewer's iris and at least one other feature of the viewer's face, calculating an imaginary line from the objet being viewed, to the iris and continuing to an imaginary center of the viewer's eye, then calculating a position of the center of the eye relative to the other feature of the viewer's face. Upon a change in the position of the eye and the iris, a calculation can be made of the position of the center of eye relative to the other feature, and a position of the iris in a second image. An imaginary line can be extended out from the center of the eye, through the new position of the iris on onto the to the digital display to determine the point of gaze of the viewer.

主权项

1. A method comprising:
capturing with an imager and using visible light, a first two-dimensional image of an iris and a facial feature of a viewer, said imager at a known location relative to a first object on an electronic display; capturing, using said imager, a second two-dimensional image of said iris and said facial feature; and identifying a second object displayed on said electronic display, said second object being the subject of a gaze of said viewer.