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10 October 2020 Non-hogel-based computer-generated hologram from lightfield and its efficient calculation
Jae-Hyeung Park
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Proceedings Volume 11551, Holography, Diffractive Optics, and Applications X; 1155114 (2020) https://doi.org/10.1117/12.2573544
Event: SPIE/COS Photonics Asia, 2020, Online Only
Abstract
We present a novel non-hogel-based computer generated hologram (CGH) technique which synthesizes complex field of 3D objects from its light field data, i.e. a number of views from different observation directions. Unlike conventional techniques, the proposed non-hogel-based CGH performs the global processing of the light field at each hologram pixel, making it free from spatio-angular resolution tradeoff, and enabling the generation of continuous parabolic wavefront for each object point without requiring associated depth map. We also present two efficient calculation techniques, i.e. the angular-frequency-slice-based processing and the hologram tiling that mitigate the computational load increased by the global processing of the non-hogel-based CGH.
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Jae-Hyeung Park "Non-hogel-based computer-generated hologram from lightfield and its efficient calculation", Proc. SPIE 11551, Holography, Diffractive Optics, and Applications X, 1155114 (10 October 2020); https://doi.org/10.1117/12.2573544
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KEYWORDS
Computer generated holography
Holograms
Spatial resolution
Wavefronts
Holography
Image resolution
Resolution enhancement technologies
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