Results 11 to 20 of about 27,513 (349)

Programmable optical meta-holograms

open access: yesNanophotonics, 2023
The metaverse has captured significant attention as it provides a virtual realm that cannot be experienced in the physical world. Programmable optical holograms, integral components of the metaverse, allow users to access diverse information without ...
Zhang Jing Cheng   +7 more
doaj   +2 more sources

Virtual and Real-Time Synchronous Interaction for Playing Table Tennis with Holograms in Mixed Reality

open access: yesSensors, 2020
Real-time and accurate interaction technology is required to realize new wearable Mixed Reality (MR) solutions. At present, the mainstream interaction method relies on gesture detection technology, which has two shortcomings: 1.
Bin Wang   +4 more
doaj   +1 more source

3D Touch Surface for Interactive Pseudo‐Holographic Displays

open access: yesAdvanced Intelligent Systems, 2022
Herein, the design and implementation of a transparent 3D touch‐enabled surface for richer user interaction with midair 3D virtual objects in a touch‐interactive pseudo‐holographic display are presented.
Adamos Christou   +4 more
doaj   +1 more source

FEATURES OF MULTIPLEXED HOLOGRAMS RECORDING IN PHOTO-THERMO-REFRACTIVE GLASS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
We have carried out calculations of recording conditions for multiplexed holograms in photo-thermo-refractive (PTR) glass. The proposed calculation sets the link between such parameters as: the angle between recording beams and the angle of sample ...
S. A. Ivanov   +3 more
doaj   +1 more source

Motion Parallax Holograms Generated from an Existing Hologram

open access: yesApplied Sciences, 2021
Generating new motion parallax holograms is required for holographic head-mounted displays when the head moves. Additionally, it is required for hologram generation from light field data that consist of a number of motion parallax images.
Tomoyoshi Shimobaba   +8 more
doaj   +1 more source

Denoising electron holograms using the wavelet hidden Markov model for phase retrieval—Applications to the phase-shifting method

open access: yesAIP Advances, 2021
Noise reduction using the wavelet hidden Markov model (WHMM) was applied to electron holograms of a LaFeO3/SrTiO3 specimen, which was subjected to phase retrieval by the phase-shifting method.
Takehiro Tamaoka   +8 more
doaj   +1 more source

Mixed Reality Improves 3D Visualization and Spatial Awareness of Bone Tumors for Surgical Planning in Orthopaedic Oncology: A Proof of Concept Study

open access: yesOrthopedic Research and Reviews, 2023
Kwok Chuen Wong,1 Edgar Yan Sun,2 Irene Oi Ling Wong,3 Shekhar Madhukar Kumta4 1Orthopaedic Oncology, Department of Orthopaedics and Traumatology, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong SAR, People’s Republic of China ...
Wong KC, Sun EY, Wong IOL, Kumta SM
doaj  

The Dynamic Display of Art Holography

open access: yesArts, 2019
Holograms have been displayed in single-artist and group exhibitions, since the late 1960’s. The content within a holographic image can be greatly compromised if the hologram is not displayed correctly.
M. Melissa Crenshaw
doaj   +1 more source

Simultaneous Full‐Color Printing and Holography Enabled by Centimeter‐Scale Plasmonic Metasurfaces

open access: yesAdvanced Science, 2020
Optical metasurfaces enable novel ways to locally manipulate light's amplitude, phase, and polarization, underpinning a newly viable technology for applications, such as high‐density optical storage, holography, and displays.
Fei Zhang   +9 more
doaj   +1 more source

Broadband spin-multiplexed single-celled metasurface holograms: a comprehensive comparison between different strategies

open access: yesNanophotonics, 2023
Metasurface-generated holograms have emerged as a unique platform for arbitrarily shaping the reflected/transmitted wavefronts with the advantages of subwavelength large pixel sizes and multiple information channels.
im Sande Sören   +2 more
doaj   +1 more source

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