Results 21 to 30 of about 3,087,724 (237)

Deep-Learning Computational Holography: A Review

open access: yesFrontiers in Photonics, 2022
Deep learning has been developing rapidly, and many holographic applications have been investigated using deep learning. They have shown that deep learning can outperform previous physically-based calculations using lightwave simulation and signal processing.
Shimobaba, Tomoyoshi   +6 more
openaire   +2 more sources

Attributing scientific and technical progress: the case of holography [PDF]

open access: yes, 2005
Holography, the three-dimensional imaging technology, was portrayed widely as a paradigm of progress during its decade of explosive expansion 1964–73, and during its subsequent consolidation for commercial and artistic uses up to the mid 1980s.
Johnston, Sean F.   +2 more
core   +1 more source

Grid computing for the numerical reconstruction of digital holograms [PDF]

open access: yes, 2005
Digital holography has the potential to greatly extend holography's applications and move it from the lab into the field: a single CCD or other solid-state sensor can capture any number of holograms while numerical reconstruction within a computer ...
Nebrensky, JJ   +5 more
core   +1 more source

Holography with high-power CW coherent terahertz source: optical components, imaging, and applications

open access: yesLight: Advanced Manufacturing, 2022
This paper presents the results of 15 years of studies in the field of terahertz holography at the Novosibirsk free electron laser. They cover two areas: research on obtaining holographic images in the terahertz range and the use of diffractive optical ...
Yulia Choporova   +2 more
doaj   +1 more source

Recent progress in computer-generated holography for three-dimensional scenes

open access: yesJournal of Information Display, 2016
Computer-generated holography (CGH) is a crucial technique in preparing contents for holographic three-dimensional displays. In this paper, the recent progress in the CGH techniques is reviewed, covering the point-cloud-, light-ray-field-, layer-, and ...
Jae-Hyeung Park
doaj   +1 more source

Diffraction Characteristics of a Digital Micromirror Device for Computer Holography Based on an Accurate Three-Dimensional Phase Model

open access: yesPhotonics, 2023
A digital micromirror device (DMD) has a wide range of applications in holographic display, light field manipulation, etc., due to its high-speed refresh rates. In order to precisely control the wavefront, the influence of the micromirror array structure
Xiaoyu Wang, Hao Zhang
doaj   +1 more source

Quasi-holography computational model for urban computing

open access: yesVisual Informatics, 2019
Abstract Vast amounts of data are produced with the development of smart cities and urban computing technologies. The data is often captured from multiple sensors, with heterogeneous structures and highly decentralized connections. Integrated data representation and smart computational models are required for more complex tasks in urban computing. We
Baoquan Chen, Qiong Zeng, Zhanglin Cheng
openaire   +1 more source

Computational highlight holography [PDF]

open access: yesACM Transactions on Graphics, 2010
Computational highlight holography converts three-dimensional computer models into mechanical "holograms" fabricated on (specular) reflective or refractive materials. The surface consists of small grooves with patches of paraboloids or hyperboloids, each of which produces a highlight when illuminated by a directional light.
Regg, Christian   +3 more
openaire   +2 more sources

High-resolution digital holography utilized by the subpixel sampling method [PDF]

open access: yes, 2011
A novel (to our knowledge) approach for resolution improvement in digital holography is presented in this paper. The proposed method is based on recording the incoming interference field on a complementary metal-oxide semiconductor (CMOS) camera with ...
Fritzsche, Marco   +9 more
core   +1 more source

Multifocal co-plane metalens based on computer-generated holography for multiple visible wavelengths

open access: yesResults in Physics, 2020
Traditional optical components need to accumulate optical path to control the wavefront. To achieve a desired function, several components are cascaded resulting in optical systems that are bulky and costly.
Biqiao Huang   +6 more
doaj   +1 more source

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