Implementations of the present disclosure may include calibration techniques for systems which include eye tracking devices and display devices. The calibration techniques may involve a calibration process which utilizes a plurality of visible calibration targets that each defines a gaze point for a user. The calibration targets may include both targets output to the display device, as well as gaze points located on the eye tracking device itself. The calibration techniques may also include additional sensors on the eye tracking device to gather additional calibration information, such as a back-facing camera which captures images of the display device from the eye tracking device. Increased information regarding system setup that is useful in calibrating the eye tracking system may be obtained from the calibration process.
