Efficient Hogel-Based Hologram Synthesis Method for Holographic Stereogram Printing
Source abstract
Abstract
With the development of the holographic printer, printing synthetic hologram requires smaller holographic element (hogel) size to improve spatial resolution of the reconstruction. On the contrary, a larger hogel size affords higher angular resolution, but it leads to a lower lateral resolution and there exists a trade-off problem. In this paper, a hologram synthesis method based on three-dimensional (3D) rendering of computer-generated holographic stereogram (HS) is proposed to limit the spatial-angular trade-off problem. The perspectives of the 3D scene are captured by re-centering the camera method and transformed into parallax-related images by a proposed pixel re-arrangement algorithm for holographic printing. Unlike the conventional approaches, the proposed algorithm not only improves the angular resolution of the reconstruction while maintaining the hogel size fixed, but also keeps the spatial resolution without degradation. The effectiveness of the proposed method is verified by numerical simulation and an optical experiment.
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Research context
OpenAlex topics: Advanced Optical Imaging Technologies · Computer Graphics and Visualization Techniques · Virtual Reality Applications and Impacts
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Information and Communication Engineering, Chungbuk National University, Cheongju 28644, Korea
Department of Electronic Engineering, Wonkwang University, Iksan 54538, Korea
Department of Electronics Engineering, Incheon National University, Incheon 22012, Korea
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