Results 1 to 10 of about 1,823 (165)
Review of computer-generated hologram algorithms for color dynamic holographic three-dimensional display [PDF]
Light: Science & Applications, 2022 Holographic three-dimensional display is an important display technique because it can provide all depth information of a real or virtual scene without any special eyewear.
Dapu Pi, Juan Liu, Yongtian Wang
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Computer-Generated Hologram Based on Reference Light Multiplexing for Holographic Display
Applied Sciences, 2021 In this article, we propose a reference light wave multiplexing scheme to increase the information capacity of computer-generated holograms. The holograms were generated by different reference light waves and superimposed together as a multiplexed ...
Dapu Pi, Juan Liu
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High Resolution Computer-Generated Rainbow Hologram
Applied Sciences, 2018 We have developed an output device for a computer-generated hologram (CGH) named a fringe printer, which can output a 0.35- μ m plane-type hologram. We also proposed several CGH with a fringe printer.
Takeshi Yamaguchi, Hiroshi Yoshikawa
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Evaluation of permissible pixel positioning errors for displaying computer-generated holograms in projection photolithography [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 The authors carried out the estimation of the permissible positioning errors when displaying reflective phase holograms intended for application in holographic photolithography on solid media using electron-beam lithography devices.
Sergey N. Koreshev +2 more
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ETRI Journal, 2021 We propose an efficient method for synthesizing mesh-based realistic computer-generated hologram (CGH). In a previous nonanalytic mesh-based CGH synthesis, the angular spectrum of the two-dimensional (2D) plane is calculated using the fast Fourier ...
Han-Ju Yeom +3 more
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Nonlinear computer-generated holograms [PDF]
Optics Letters, 2011 We propose a novel technique for arbitrary wavefront shaping in quadratic nonlinear crystals by introducing the concept of computer-generated holograms (CGHs) into the nonlinear optical regime. We demonstrate the method experimentally showing a conversion of a fundamental Gaussian beam pump light into the first three Hermite-Gaussian beams at the ...
Asia, Shapira, Irit, Juwiler, Ady, Arie
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A digital hologram-based encryption and compression method for 3D models
Frontiers in Physics, 2022 This study proposes a novel method to compress and decompress the 3D models for safe transmission and storage. The 3D models are first extracted to become 3D point clouds, which would be classified by the K-means algorithm.
Yukai Sun +7 more
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QUALITY ASSESSMENT OF BINARY OBJECT IMAGES RECONSTRUCTED BY COMPUTER-GENERATED HOLOGRAMS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2020 Subject of Research.The paper considers the issues of objective quality assessment of computer-generated Fresnel holograms and reconstructed binary object images. Method.The work is performed by the method of projection holographic photolithography based
Sergey N. Koreshev +3 more
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Frontiers in Physics, 2022 Conventional studies on digital hologram printer have mainly been conducted on image generation and reconstruction such as multi-view image generation method, computer-generated hologram (CGH) and a method of displaying a wave-front for a 3D object ...
Leehwan Hwang +6 more
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A Content Hiding Method for Digital Hologram Using Multiple Fresnel Diffraction
Applied Sciences, 2020 A digital hologram (DH) is so highly valued that it needs to be protected from exposure to an unpermitted person, which could be done by a content encryption.
Young-Ho Seo +2 more
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