Max BERTHOLD
A Three-Dimensional Eye Movement Measurement System
Abstract:This report contains results from studies during the developments of a three-dimensional eye tracking system performed from June 1997 to April 1998 at the Human Information Processing Research Laboratories (HIP Lab) at the Advanced Telecommunications Research Institute, Japan. The system is video-based and will measure the eyes' movements non-invasively using different computer-imaging technique. Results from the implementation of a torsion algorithm, as well as an algorithm to express image plane coordinates in a head fixed coordinate system i.e., absolute viewing angles, will be presented. Earlier tests investigating the evaluation of horizontal and vertical viewing angles as well as a system description, have been presented in [Berthold 1997].