Eye Tracking System

A method of calibrating an eye tracker for use with a display, said eye tracker and said display are configured to be positioned relative to each other in at least two different positions for tracking a gaze point on said display, said method comprising the steps of:

• placing said display in a first position thereby covering at least a part of the angles available by the gaze range of said eye tracker;
• determining the position of said display and said eye tracker relative to each other;
• displaying a plurality of targets on said display, each of said plurality of targets provides calibration parameters of a gaze line for this target in a first coordinate system, based on the relative position of said eye tracker and said display, wherein said plurality of targets cover at least a part of the area of said display;
• repeating at least once, the above steps for another position of said display thereby calibrating additional gaze lines available by said eye tracker's gaze range;
• and
• storing said calibration data.

A method for calibrating an eye tracker, said method comprising the steps of:

• drawing the attention of a user to a calibration target;
• employing at least one positioning camera and at least one computer thereby determining the position of said calibration target and said eye tracker coordinate system relative to each other;
• determining the calibration parameters of a gaze line, to said calibration target, in a first coordinate system;
• repeating the above steps thereby providing a desired part of a gaze range and calibration targets distribution;
• and
• storing said calibration data.