Efficient augmented reality display calibration

A system comprising:

• at least one processor;
• and
• a non-transitory computer-readable medium storing executable instructions that, when executed, cause the at least one processor to perform operations comprising:
• calibrating a visual inertial navigation (VIN) camera of a head mounted display (HMD) device to at least one eye camera of the HMD device, the at least one eye camera simulating the positioning of at least one human eye within an interior space of the HMD device looking through a display screen of the HMD device to an exterior space of the HMD, the VIN camera being configured to be used with an inertial measurement unit (IMU) of the HMD device to determine a VIN state, the calibrating of the VIN camera to the at least one eye camera comprising calculating multi-camera calibration parameters;
• calibrating the at least one eye camera to a display module of the HMD, the display module being configured to display AR content on the display screen, the calibrating of the at least one eye camera to the display module comprising calculating display calibration parameters;
• calibrating the IMU to the VIN camera, the calibrating of the IMU to the VIN camera comprising calculating VIN calibration parameters;
• and
• calibrating the IMU to the display module using the multi-camera calibration parameters, the display calibration parameters, and the VIN calibration parameters.

A non-transitory machine-readable storage medium storing a set of instructions that, when executed by at least one processor, causes the at least one processor to perform operations comprising:

• calibrating a visual inertial navigation (VIN) camera of a head mounted display (HMD) device to at least one eye camera of the HMD device, the at least one eye camera simulating the positioning of at least one human eye within an interior space of the HMD device looking through a display screen of the HMD device to an exterior space of the HMD, the VIN camera being configured to be used with an inertial measurement unit (IMU) of the HMD device to determine a VIN state, the calibrating of the VIN camera to the at least one eye camera comprising calculating multi-camera calibration parameters;
• calibrating the at least one eye camera to a display module of the HMD, the display module being configured to display AR content on the display screen, the calibrating of the at least one eye camera to the display module comprising calculating display calibration parameters;
• calibrating the IMU to the VIN camera, the calibrating of the IMU to the VIN camera comprising calculating VIN calibration parameters;
• and
• calibrating the IMU to the display module using the multi-camera calibration parameters, the display calibration parameters, and the VIN calibration parameters.