The wavefront recording plane (WRP) method is an algorithm for computer-generated holograms, which has significantly promoted the accelerated computation of point-based holograms. Similarly, in this paper, we propose a WRP-like method for polygon-based holograms. A WRP is placed near the object, and the diffracted fields of all polygons are aggregated in the WRP so that the fields propagating from the polygonal mesh affect only a small region of the plane rather than the full region. Unlike the conventional WRP method used in point-based holograms, the proposed WRP-like method utilizes sparse sampling in the frequency domain to significantly reduce the practical computational kernel size. The proposed WRP-like method and the analytical shading model are used to generate polygon-based holograms of multiple three-dimensional (3D) objects, which are then reproduced to confirm 3D perception. The results indicate that the proposed WRP-like method based on an analytical algorithm is hundreds of times faster than the reference full region sampling case; a hologram with tens of thousands of triangles can be computed in seconds even on a CPU, whereas previous methods required a graphics processing unit to achieve these speeds.
Wang, F, Blinder, D, Ito, T & Shimobaba, T 2023, 'Wavefront recording plane-like method for polygon-based holograms', Optics Express, vol. 31, no. 2, pp. 1224-1233. https://doi.org/10.1364/OE.479592
Wang, F., Blinder, D., Ito, T., & Shimobaba, T. (2023). Wavefront recording plane-like method for polygon-based holograms. Optics Express, 31(2), 1224-1233. https://doi.org/10.1364/OE.479592
@article{dbc9c45f430e4f969cf55c2c6818ee2b,
title = "Wavefront recording plane-like method for polygon-based holograms",
abstract = "The wavefront recording plane (WRP) method is an algorithm for computer-generated holograms, which has significantly promoted the accelerated computation of point-based holograms. Similarly, in this paper, we propose a WRP-like method for polygon-based holograms. A WRP is placed near the object, and the diffracted fields of all polygons are aggregated in the WRP so that the fields propagating from the polygonal mesh affect only a small region of the plane rather than the full region. Unlike the conventional WRP method used in point-based holograms, the proposed WRP-like method utilizes sparse sampling in the frequency domain to significantly reduce the practical computational kernel size. The proposed WRP-like method and the analytical shading model are used to generate polygon-based holograms of multiple three-dimensional (3D) objects, which are then reproduced to confirm 3D perception. The results indicate that the proposed WRP-like method based on an analytical algorithm is hundreds of times faster than the reference full region sampling case; a hologram with tens of thousands of triangles can be computed in seconds even on a CPU, whereas previous methods required a graphics processing unit to achieve these speeds.",
author = "Fan Wang and David Blinder and Tomoyoshi Ito and Tomoyoshi Shimobaba",
note = "Funding Information: Fonds Wetenschappelijk Onderzoek (12ZQ220N, 12ZQ223N, VS07820N); Japan Society for the Promotion of Science (19H01097, 22H03607). We thank the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan and the China Scholarship Council (CSC) for their support. Funding Information: Acknowledgements. We thank the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan and the China Scholarship Council (CSC) for their support. Publisher Copyright: {\textcopyright} 2023 Optica Publishing Group. Copyright: Copyright 2023 Elsevier B.V., All rights reserved.",
year = "2023",
month = jan,
day = "3",
doi = "10.1364/OE.479592",
language = "English",
volume = "31",
pages = "1224--1233",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "2",
}