Full-color autostereoscopic video display system using computer-generated synthetic phase holograms

Kyongsik Choi; Hwi Kim; Byoungho Lee

doi:10.1117/12.586651

22 March 2005 Full-color autostereoscopic video display system using computer-generated synthetic phase holograms

Kyongsik Choi, Hwi Kim, Byoungho Lee

Proceedings Volume 5664, Stereoscopic Displays and Virtual Reality Systems XII; (2005) https://doi.org/10.1117/12.586651
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

A full-color auto-stereoscopic video display system has been introduced and developed using only a single phase-only spatial light modulator, a simple projection lens module, and three laser diode sources with the wavelengths of 635nm (red), 532nm (green), and 473nm (blue). Full-color stereoscopic input video frames are separated by each red, green, and blue component with respect to each stereo eye view for a 3D image frame. Each hologram is then optimized by a modified iterative Fresnel transform algorithm method, for the reconstruction of each gray-level quantized stereo image without color dispersion. To solve the color dispersion problem we applied scaling constraints and phase-leveling techniques for each hologram. Then the optimized holograms are synthesized with direction-multiplexed holograms and modulated by a single phase-type spatial light modulator. The modulated signals are Fourier-transformed by an achromatic lens and redirected to each viewer's eye for the reconstruction of the composed full-color auto-stereoscopic 3D display. Experimentally, we demonstrated that the designed computer-generated holograms were able to generate full-color stereoscopic 3D video images without any use of glasses.

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Kyongsik Choi, Hwi Kim, and Byoungho Lee "Full-color autostereoscopic video display system using computer-generated synthetic phase holograms", Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005); https://doi.org/10.1117/12.586651

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KEYWORDS

Holograms

3D image reconstruction

3D displays

Spatial light modulators

Video

3D image processing

Displays

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