GAZE CALIBRATION

摘要

Calibration of gaze tracking equipment is described, for example, in a desktop computing scenario. In various examples, an explicit calibration phase is carried out, optionally followed by an implicit calibration phase. In examples, the explicit calibration phase comprises requesting and receiving user manual input events associated with specified locations and measuring gaze associated with the manual input events. In examples, the implicit calibration phase is carried out without disturbing other activity of a user in the desktop computing environment, such as operating a graphical user interface. In various examples calibration data is stored in a plurality of buffers and used to control switching between explicit and implicit calibration phases.

主权项

1. A computer-implemented method comprising:
receiving, from a gaze tracker, a stream of gaze measurements of a user operating a computing device having a display; carrying out an explicit calibration phase of which the user is aware by:
displaying a plurality of calibration markers at the display;detecting, at the computing device, a plurality of manual user input events associated with the calibration markers;identifying a plurality of the gaze measurements associated with at least some of the detected manual user input events; andcalibrating the stream of gaze measurements using the identified plurality of gaze measurements and locations of the associated manual user input events.