Results 21 to 30 of about 701 (192)
Spatio‐Spectral‐Temporal Imaging of Fast Transient Phenomena Using a Random Array of Pinholes
Advanced Photonics Research, 2021 Fast transient phenomena such as light–matter interactions, rapid electrical discharge, light scattering in tissues, and biochemical reactions that generate light signatures can be studied using high‐speed cameras. Herein, a lensless, single camera shot,
Vijayakumar Anand +3 more
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St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020 In the paper, the influence of phase distribution over the objects’ space on resolution and depth of field of computer-generated holograms has been investigated.
Koreshev Sergey +3 more
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Copyright protection of deep image classification models
Компьютерная оптика, 2023 With the growing number of tasks solved using deep learning methods, the need for protection against unauthorized distribution of the intellectual property such as pre-trained models of deep neural networks is growing.
Y.D. Vybornova, D.I. Ulyanov
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The Modulated Grating Hologram [PDF]
, 1975 A phase and amplitude, off-axis hologram has been synthesized from three computer-generated transmission masks, using a multiple-exposure holographic recording method.
MacQuigg, David Rodgers
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Experimental demonstration of holographic three-dimensional light shaping using a Gerchberg-Saxton algorithm [PDF]
, 2005 We use a three-dimensional Gerchberg–Saxton algorithm (Shabtay (2003) Opt. Commun. 226 33) to calculate the Fourier-space representation of physically realizable light beams with arbitrarily shaped three-dimensional intensity distributions.
Courtial, J. +5 more
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Spatio-temporal scanning modality for synthesizing interferograms and digital holograms
Optics Express, 2014 We investigate the spatio-temporal scanning of a single-pixel row for building up synthetic interferograms or digital holograms, shifted each other of a desired phase step. This unusual recording modality exploits the object movement to synthesize interferograms with extended Field of View and improved noise contrast.
Bianco V, Paturzo M, Ferraro P
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Synthesizing Incoherent Digital Holograms with Reduced Number of Projections [PDF]
Biomedical Optics, 2008 We present a method of recording digital Fourier holograms under incoherent illumination, using a significantly reduced number of observed perspective projections and a digital prediction of the middle projections. The method is demonstrated experimentally.
Barak Katz +2 more
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Computer-generated holography with ordinary display
, 2023 We propose a method of computer-generated holography (CGH) using incoherent light emitted from a mobile phone screen. In this method, we suppose a cascade of holograms in which the first hologram is a color image displayed on the mobile phone screen. The
Makoto Naruse (3388922) +2 more
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Crystals, 2020 A series of photopolymers based on ethylene glycol phenyl ethyl arylate (EGPEA) monomers and poly(methyl methacrylate) (PMMA) matrix with varying initiator concentrations and sample thicknesses have been synthesized and their optical performance ...
Fang-Yong Lee +3 more
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Intelligent Reflecting Surfaces With Spatial Modulation: An Electromagnetic Perspective
IEEE Open Journal of the Communications Society, 2020 Electromagnetic wave control using the concept of a reflecting surface is first studied as a near-field and a far-field problem. Using a secondary source present in a wireless communication environment, such as a backscatter tag, it is possible to ...
Okan Yurduseven +2 more
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