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Stereo-based calibration apparatus

  • US 10,290,154 B1
  • Filed: 09/12/2018
  • Issued: 05/14/2019
  • Est. Priority Date: 11/13/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • capturing a plurality of images of a virtual reality (VR) headset while the VR headset is rotated around one or more axes;

    receiving a signal output by a inertial measurement unit (IMU) while the VR headset is rotated around the one or more axes;

    calculating an expected rotation of the VR headset based on the received signal output by the IMU;

    determining an actual rotation of the VR headset based on the plurality of captured images;

    comparing the actual rotation of the VR headset and the expected rotation of the VR headset;

    generating one or more dynamic calibration parameters based on the comparison; and

    storing the dynamic calibration parameters for the VR headset, the calibration parameters usable to identify rotation of the VR headset during use of the VR headset.

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