Results 21 to 30 of about 3,988 (218)

Optimal Spatial Coherence of a Light-Emitting Diode in a Digital Holographic Display

open access: yesApplied Sciences, 2022
The coherence of a light source is a vital aspect regarding the image quality of holographic contents. Generally, the coherence of the light source is the reason for speckle noise in a holographic display, which degrades the image quality.
Sungjin Lim   +3 more
doaj   +1 more source

A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

open access: yesApplied Sciences, 2019
A fast computer-generated holographic method with multiple projection images for a near-eye VR (Virtual Reality) and AR (Augmented Reality) 3D display is proposed.
Xin Yang, HongBo Zhang, Qiong-Hua Wang
doaj   +1 more source

Metasurface-Based Holographic Display With All-Dielectric Meta-Axilens

open access: yesIEEE Photonics Journal, 2021
In a classical metasurface-based holographic display system, a clear holographic reconstruction image can be obtained only in the back-focal-plane of the lens. However, when the receiving plane deviates from the focal plane, the reconstructed holographic
Chuan Shen   +4 more
doaj   +1 more source

State of the Art in Holographic Displays: A Survey [PDF]

open access: yesJournal of Display Technology, 2010
True-3D imaging and display systems are based on physical duplication of light distribution. Holography is a true-3D technique. There are significant developments in electro-holographic displays in recent years. Liquid crystal, liquid crystal on silicon, optically addressed, mirror-based, holographic polymer-dispersed, and acousto-optic devices are ...
Yaraş F., Kang H., Onural L.
openaire   +3 more sources

Accurate Hologram Generation Using Layer-Based Method and Iterative Fourier Transform Algorithm

open access: yesIEEE Photonics Journal, 2017
Random phase is always added to the object to diffuse the object light in computer-generated holograms. However, this addition causes considerable speckle noise in the reconstructed image. For improving the speckle noise problem, we propose a new method,
Hui Pang   +5 more
doaj   +1 more source

Progress in the Synthetic Holographic Stereogram Printing Technique

open access: yesApplied Sciences, 2018
The synthetic holographic stereogram printing technique can achieve a three-dimensional (3D) display of a scene. The development and research status of the synthetic holographic stereogram printing technique is introduced in this paper.
Jian Su   +5 more
doaj   +1 more source

Recent Advances and Applications of Holographic 3D Display

open access: yesResearch
Due to the importance of vision in human lives, 3-dimensional (3D) display has become a key and hot topic in the field of information research. With the advancement of computer science technology, holographic 3D display, capable of fully recording and ...
Qian Huang   +10 more
doaj   +1 more source

The Interactive Spatial Aesthetics between Holographic Display Technology and Dancing Body Language

open access: yesProceedings, 2022
The emergence of holographic stage art has made the concrete space of the dance theater fragmented, the virtuality and multiplicity place the dancers’ performances in a kind of phantom space beyond the object.
Xiaofang Liu
doaj   +1 more source

Holobricks: modular coarse integral holographic displays

open access: yesLight: Science & Applications, 2022
Here, we propose and demonstrate a modular holographic display system that allows seamless spatial tiling of multiple coarse integral holographic (CIH) displays called “holobricks”.
Jin Li, Quinn Smithwick, Daping Chu
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

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