You can download a preprint of this article:

  • Spatial calibration of an optical see-through head mounted display
    Gilson, S.J., Fitzgibbon, A.W. and Glennerster, A. Journal of Neuroscience Methods, 173, 140-146 (2008)

    We present here a method for calibrating an optical see-through Head Mounted Display (HMD) using techniques usually applied to camera calibration (photogrammetry). Using a camera placed inside the HMD to take pictures simultaneously of a tracked object and features in the HMD display, we could exploit established camera calibration techniques to recover both the intrinsic and extrinsic properties of the~HMD (width, height, focal length, optic centre and principal ray of the display). Our method gives low re-projection errors and, unlike existing methods, involves no time-consuming and error-prone human measurements, nor any prior estimates about the HMD geometry.

    There is more information about the calibration method here.

    Science direct link to article (if you have a subscription) of I can email (a.glennerster "at" a copy on request.

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