AUTOMATIC AND CONTINUOUS CALIBRATION METHOD FOR COMPUTER SOFTWARE USING EYE TRACKING TYPE ENTRY SYSTEM (EYE TRACKING)

摘要

The process of the present invention makes it possible to eliminate the calibration stage manually by carrying out the calibration automatically in the task of the bottom of a manner transparent for the user. The calibration is carried out in a permanent manner to the extent of the use of the software, thus allowing a continuous improvement and a constant potential changes to the physiological or positioning of the user. The method comprises the following steps: 1) during the first use, the mean calibration system uses a single standard to all the users. 2) As soon as the front of the user is located inside an object which can be selected, the system automatically moves the cursor towards the center of the object. 3) When the user triggers the activation of the selected object, it records the coordinates of the center of the selected object and the coordinates of the register supplied by the system of the "eye tracking " with the standard calibration. 4) The calculation of the calibration for a given user is then carried out continuously by groups of n measurements according to the method of the stochastic gradient, in order to determine the function f which allows the point of reference can be approximated. The process according to the invention is particularly adapted to the computer applications using the "eye tracking " (monitoring of the eyes), as input device.