An Automated Calibration Method for Non-See-Through Head Mounted Displays

Accurate calibration of a head mounted display (HMD) is essential both for research on the visual system and for realistic interaction with virtual objects. Yet, existing calibration methods are time consuming and depend on human judgements, making them error prone. The methods are also limited to optical see-through HMDs. Building on our existing HMD calibration method [1], we show here how it is possible to calibrate a non-see-through HMD. A camera is placed inside an HMD displaying an image of a regular grid, which is captured by the camera. The HMD is then removed and the camera, which remains fixed in position, is used to capture images of a tracked calibration object in various positions. The locations of image features on the calibration object are then re-expressed in relation to the HMD grid. This allows established camera calibration techniques to be used to recover estimates of the display's intrinsic parameters (width, height, focal length) and extrinsic parameters (op...

• Type: Conference
• Year: 2009
• Where: CGVR
• Authors: Stuart Gilson, Andrew W. Fitzgibbon, Andrew Glennerster
• Keywords: Calibration, Calibration Method, CGVR 2007, CGVR 2009, HMD Calibration Method