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Abstract

Techniques are described for calibrating vertical binocular disparity (VBD) in optical see-through augmented reality displays using two independent measurements rather than direct perceptual display-to-background alignment. A background VBD (bg_vbd) for the see-through optical path and a display-to-display VBD (display_vbd) between left and right display channels are measured, and a correction offset is computed as offset = bg_vbd - display_vbd. The offset is applied to one or both display channels to reduce relative VBD between displayed content and background toward approximately zero. A statistical framework assesses calibration quality by propagating measurement uncertainties (e.g., s_offset = sqrt(s_bg^2 + s_display^2)), optionally including display quantization based on pixels-per-degree, and estimating a probability that residual relative VBD exceeds a perceptual breakpoint tolerance using analytical and Monte Carlo tiers, including population variability of the breakpoint. Breakeven analysis for method selection is also described.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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