Improvements of simplified generation technique for holographic stereograms from multi-view images

Kyohei Ikeda; Yasuhiro Takaki

doi:10.1117/12.2038859

25 February 2014 Improvements of simplified generation technique for holographic stereograms from multi-view images

Kyohei Ikeda, Yasuhiro Takaki

Proceedings Volume 9006, Practical Holography XXVIII: Materials and Applications; 90060R (2014) https://doi.org/10.1117/12.2038859
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

A holographic stereograms generation technique based on multi-view displays does not require diffraction calculation when generating holographic stereograms from multiple perspective projections of real objects. However, a viewing area was limited when the spatial frequency of the quadratic phase distribution exceeds the Nyquist frequency determined by the pixel pitch of the spatial light modulator. In this study, we improved the technique by introducing a spherical lens on the hologram display plane to provide a quadratic phase distribution to wavefronts. Because of random phase distributions that were added to the parallax images to obtain smooth motion parallax, speckle noise was observed in reconstructed images. To reduce the speckle noise, the spatial bandwidths of the wavefronts were limited. The proposed technique was verified experimentally.

Citation Download Citation

Kyohei Ikeda and Yasuhiro Takaki "Improvements of simplified generation technique for holographic stereograms from multi-view images", Proc. SPIE 9006, Practical Holography XXVIII: Materials and Applications, 90060R (25 February 2014); https://doi.org/10.1117/12.2038859

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KEYWORDS

Holography

Stereo holograms

Holograms

Spherical lenses

3D image reconstruction

Wavefronts

Spatial light modulators

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