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15 April 1994 Viewing model for stereoscopic head-mounted displays
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We characterize a class of stereoscopic displays, that includes head-mounted displays that incorporate miniature cathode-ray tubes. We present a detailed viewing model that accounts for the placement, size, and orientation of the virtual display images. The model is appropriate for several types of head-mounted displays, as well as head-tracked stationary displays. The tracking algorithm accounts for the displacement between the tracking sensor and the user's eyes. We provide algorithms for calculating stereoscopic viewing and projection matrices. The algorithms are presented as parameterized homogeneous transforms. We also discuss design guidelines for avoiding accommodation/convergence conflicts, and managing the perceived field-of-view. The advantages of this viewing model and algorithm are the elimination of possible vertical parallax, and an undistorted perception of depth. Both of these factors can contribute to improved utility for the operator.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David A. Southard "Viewing model for stereoscopic head-mounted displays", Proc. SPIE 2177, Stereoscopic Displays and Virtual Reality Systems, (15 April 1994);


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