Results 21 to 30 of about 50,688 (337)

Partially Overlapping Printing with Digital Filter to Improve Quality of Volume Hologram Printer – Numerical Simulation –

open access: yesApplied Sciences, 2020
The volume hologram printer is useful for 3D display, because it is selective to the wavelength and be able to reconstruct with the natural illumination.
Hangbo Hua   +2 more
doaj   +1 more source

3D Hologram Technology in Libyan Educational Institutions in Future: Re-view

open access: yesمجلة العلوم البحتة والتطبيقية, 2021
Holographic projection is the new wave of technology that will change how we view things in the future; it will have tremendous effects on all fields of life including education and science.
Gharsa .A. Elmarash   +2 more
doaj   +1 more source

Reprogrammable meta-hologram for optical encryption

open access: yesNature Communications, 2020
Meta-holographic encryption is a potentially important technique for information security. Despite rapid progresses in multi-tasked meta-holograms, the number of information channels available in metasurfaces is limited, making meta-holographic ...
Geyang Qu   +7 more
semanticscholar   +1 more source

Open-Set Learning-Based Hologram Verification System Using Generative Adversarial Networks

open access: yesIEEE Access, 2022
In this study, we address the hologram authenticity challenge by introducing a novel deep-learning based end-to-end hologram verification system. The system ultimately makes the decision whether the hologram image captured from a mobile application is ...
Betul Ay
doaj   +1 more source

Challenges in using GPUs for the real-time reconstruction of digital hologram images [PDF]

open access: yes, 2013
This is the pre-print version of the final published paper that is available from the link below.In-line holography has recently made the transition from silver-halide based recording media, with laser reconstruction, to recording with large-area pixel ...
Nebrensky, JJ, Reid, ID, Hobson, PR
core   +1 more source

Randomness assisted in-line holography with deep learning

open access: yesScientific 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
doaj   +1 more source

Deep neural network for multi-depth hologram generation and its training strategy.

open access: yesOptics Express, 2020
We present a deep neural network for generating a multi-depth hologram and its training strategy. The proposed network takes multiple images of different depths as inputs and calculates the complex hologram as an output, which reconstructs each input ...
Juhyun Lee   +5 more
semanticscholar   +1 more source

Sub-Terahertz Computer Generated Hologram with Two Image Planes

open access: yesApplied Sciences, 2019
An advanced optical structure such as a synthetic hologram (also called a computer-generated hologram) is designed for sub-terahertz radiation. The detailed design process is carried out using the ping-pong method, which is based on the modified ...
Mateusz Surma   +3 more
doaj   +1 more source

EFFECT OF OBJECT REPRESENTATION FORM ON DEPTH RESOLUTION OF RESTORED IMAGES OBTAINED BY SYNTHESIZED FRESNEL HOLOGRAMS [PDF]

open access: yesНаучно-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
doaj   +1 more source

Compression of Phase-Only Holograms with JPEG Standard and Deep Learning

open access: yesApplied Sciences, 2018
It is a critical issue to reduce the enormous amount of data in the processing, storage and transmission of a hologram in digital format. In photograph compression, the JPEG standard is commonly supported by almost every system and device.
Shuming Jiao   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy