Results 11 to 20 of about 1,184,514 (267)
Randomness assisted in-line holography with deep learning
Scientific Reports, 2023 We propose and demonstrate a holographic imaging scheme exploiting random illuminations for recording hologram and then applying numerical reconstruction and twin image removal.
Manisha +4 more
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Hologram synthesis for photorealistic reconstruction [PDF]
Journal of the Optical Society of America A, 2008 Computation of diffraction patterns, and thus holograms, of scenes with photorealistic properties is a highly complicated and demanding process. An algorithm, based primarily on computer graphics methods, for computing full-parallax diffraction patterns of complicated surfaces with realistic texture and reflectivity properties is proposed and tested ...
Janda, M., Hanák I., Onural L.
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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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Journal of Imaging, 2022 High-speed optical reconstruction of 3D-scenes can be achieved using digital holography with binary digital micromirror devices (DMD) or a ferroelectric spatial light modulator (fSLM). There are many algorithms for binarizing digital holograms.
Pavel A. Cheremkhin +5 more
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Optics Express, 2021 An iterative method with bandwidth constraint strategy is proposed to design phase holograms for high-quality speckle-free optical reconstruction. The bandwidth properties of the reconstructed field are analyzed theoretically based on the sampling theory,
Lizhi Chen +4 more
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Comprehensive deep learning model for 3D color holography
Scientific Reports, 2022 Holography is a vital tool used in various applications from microscopy, solar energy, imaging, display to information encryption. Generation of a holographic image and reconstruction of object/hologram information from a holographic image using the ...
Alim Yolalmaz, Emre Yüce
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Journal of Marine Science and Engineering, 2023 In this paper, we study the variations of holograms of a moving source in an inhomogeneous ocean waveguide. It is assumed that intense internal waves (internal solitons) are the reason for the inhomogeneities of the shallow water waveguide.
Sergey Pereselkov +5 more
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EFFECT OF OBJECT REPRESENTATION FORM ON DEPTH RESOLUTION OF RESTORED IMAGES OBTAINED BY SYNTHESIZED FRESNEL HOLOGRAMS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Subject of the Research. The paper presents the study on the effect of object representation form on the depth resolution of images reconstructed via computer-generated Fresnel holograms-projectors. Method.
Sergey N. Koreshev, Marina A. Frolova
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Robust Holographic Reconstruction by Deep Learning with One Frame
Photonics, 2023 A robust method is proposed to reconstruct images with only one hologram in digital holography by introducing a deep learning (DL) network. The U-net neural network is designed according to DL principles and trained by the image data set collected using ...
Xianfeng Xu +3 more
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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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