A passive real-time gaze estimation system a passive real-time gaze estimation system for human-machine interfaces

Abstract

A gaze detection system with real-time properties is described. In contrast to most systems available today it is fully passive and only relies on the images taken by a CCD camera without special illumination.To avoid the computational intensive algorithms usually associated with Hough transforms for ellipses (e.g. [Bal81], [TMT8]) a two-stage approach is presented, in which the Hough transform yields a segmented edge image used for a two-dimensional fitting algorithm. The algorithm has been implemented; experimental results are reported.