Patent Document ID: 20030086061
Application ID: 10262608
Patent Status: 0

Claim One:
1. A method for detecting, evaluating, and analyzing look sequences of a test person using a look detection system, comprising the steps of: detecting a field of view of the test person with a first camera, which points forward and is firmly held on the head of the test person, said field of view being recorded in a field of view video; detecting a pupil movement of the test person with a second camera, which is also firmly held on the head of the test person, said pupil movement being recorded in an eye video; recording the eye video and the field of view video synchronously in time; automatically determining with an image recognition program pupil coordinates for each frame of the eye video by: registering a contrast between the pupils and a surrounding area, determining all points of the frame which are darker than a preset brightness level, detecting and delimiting from the so determined points a dark area corresponding to the pupils, and determining the centroid of the dark area, whereby the centroid corresponds to the pupil center having the pupil coordinates, and further establishing a correlation function between the pupil coordinates in the eye video and location coordinates in the field of view video of a corresponding visual point, at which the test person looks, and extrapolating, after the correlation function has been established, for each frame from the pupil coordinates on the eye video the coordinates of the corresponding visual point in the field of view video.