Patent ID: 9033505
Filing Date: 2015-05-19
Classification: A61B,F21V,G02B,G06K,G06T

Abstract:
1. A method of tracking a position of an eye, comprising: i) a binarization step to convert each obtained images of the left and right eye regions of the face into a binary number image; ii) a feature point extraction step to classify a corner of the eye, maximum and minimum values of the pupil of the eye, and extracting a feature point from the binary number image on which the binarization step is completed; iii) a distance and inclination calculation step to calculate a distance and inclination between the corner and the pupil of the eye using the feature point extracted through the feature point extraction step; and iv) an eye gaze direction determination step to determine a gaze direction of the eye based on the distance and inclination calculated through the distance and inclination calculation step, wherein the distance and inclination between the corner and the pupil of the eye are calculated according to the following Equations 1 and 2,