We propose a novel fast method for full parallax computer-generated holograms with occlusion processing, suitable for volumetric data such as point clouds. A novel light wave propagation strategy relying on the sequential use of the wavefront recording plane method is proposed, which employs look-up tables in order to reduce the computational complexity in the calculation of the fields. Also, a novel technique for occlusion culling with little additional computation cost is introduced. Additionally, the method adheres a Gaussian distribution to the individual points in order to improve visual quality. Performance tests show that for a full-parallax high-definition CGH a speedup factor of more than 2,500 compared to the ray-tracing method can be achieved without hardware acceleration.
Symeonidou, A, Blinder, D, Munteanu, A & Schelkens, P 2015, 'Computer-generated holograms by multiple wavefront recording plane method with occlusion culling', Optics Express, vol. 23, no. 17, pp. 22149-22161. https://doi.org/10.1364/OE.23.022149
Symeonidou, A., Blinder, D., Munteanu, A., & Schelkens, P. (2015). Computer-generated holograms by multiple wavefront recording plane method with occlusion culling. Optics Express, 23(17), 22149-22161. https://doi.org/10.1364/OE.23.022149
@article{4563321bc9cb4a2e8a6bccec6c911098,
title = "Computer-generated holograms by multiple wavefront recording plane method with occlusion culling",
abstract = "We propose a novel fast method for full parallax computer-generated holograms with occlusion processing, suitable for volumetric data such as point clouds. A novel light wave propagation strategy relying on the sequential use of the wavefront recording plane method is proposed, which employs look-up tables in order to reduce the computational complexity in the calculation of the fields. Also, a novel technique for occlusion culling with little additional computation cost is introduced. Additionally, the method adheres a Gaussian distribution to the individual points in order to improve visual quality. Performance tests show that for a full-parallax high-definition CGH a speedup factor of more than 2,500 compared to the ray-tracing method can be achieved without hardware acceleration.",
keywords = "Holography, digital holography, CGH",
author = "Athanasia Symeonidou and David Blinder and Adrian Munteanu and Peter Schelkens",
year = "2015",
month = aug,
day = "24",
doi = "10.1364/OE.23.022149",
language = "English",
volume = "23",
pages = "22149--22161",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "17",
}