User-specific eye tracking calibration for near-eye-display (NED) devices

A computer-implemented method, comprising:

• causing at least one display element to sequentially present a plurality of virtual stimuli to a user at a plurality of different locations within a first of view of the user;
• receiving, from at least one sensor, first instances of eye tracking data, wherein individual instances of the first instances are generated while individual virtual stimuli of the plurality of virtual stimuli are being presented to the user at individual locations of the plurality of different locations;
• generating a calibration profile that defines at least one polygon grid formed based on interconnections between average values of a plurality of groupings of the individual instances, wherein individual groupings of the plurality of groupings correspond to individual virtual stimuli;
• subsequent to the generating the calibration profile, receiving second instances of the eye tracking data from the at least one sensor;
• and
• determining real-time gaze directions of the user by interpolating the second instances of the eye tracking data with respect with the at least one polygon grid.

An eye tracking system, comprising:

• at least one processor;
• and
• at least one memory in communication with the at least one processor, the at least one memory having computer-readable instructions stored thereupon that, when executed by the at least one processor, cause the at least one processor to:
• cause at least one display element to sequentially present a plurality of virtual stimuli at a plurality of different locations within a field of view;
• receive, from at least one sensor, a plurality of first instances of eye tracking data, individual first instances of the plurality of first instances of eye tracking data being generated while individual virtual stimuli, of the plurality of virtual stimuli, are being presented to a user at individual locations of the plurality of different locations;
• generate a calibration profile that defines at least one polygon grid formed by interconnections between the plurality of first instances of eye tracking data;
• receive, from the at least one sensor, a plurality of second instances of eye tracking data;
• and
• track a real-time gaze direction of the user by interpolating the plurality of second instances of eye tracking data with respect with the calibration profile that defines the at least one polygon grid formed by interconnections between the plurality of first instances of eye tracking data.