1 February 2005 Registration of an on-axis see-through head-mounted display and camera system
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Optical Engineering, 44(2), 024002 (2005). doi:10.1117/1.1839231
Abstract
An optical see-through head-mounted display (HMD) system integrating a miniature camera that is aligned with the user's pupil is developed and tested. Such an HMD system has a potential value in many augmented reality applications, in which registration of the virtual display to the real scene is one of the critical aspects. The camera alignment to the user's pupil results in a simple yet accurate calibration and a low registration error across a wide range of depth. In reality, a small camera-eye misalignment may still occur in such a system due to the inevitable variations of HMD wearing position with respect to the eye. The effects of such errors are measured. Calculation further shows that the registration error as a function of viewing distance behaves nearly the same for different virtual image distances, except for a shift. The impact of prismatic effect of the display lens on registration is also discussed.
Gang Luo, Noa M. Rensing, Evan Weststrate, Eli Peli, "Registration of an on-axis see-through head-mounted display and camera system," Optical Engineering 44(2), 024002 (1 February 2005). http://dx.doi.org/10.1117/1.1839231
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KEYWORDS
Cameras

Head-mounted displays

Image registration

Imaging systems

Eye

Video

Calibration

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