Results 11 to 20 of about 3,425 (175)

Compression Performance Analysis of Experimental Holographic Data Coding Systems

open access: yesSensors, 2023
It is challenging to find a proper way to compress computer-generated holography (CGH) data owing to their huge data requirements and characteristics. This study proposes CGH data coding systems with high-efficiency video coding (HEVC), three-dimensional
Tianyu Dong   +3 more
doaj   +1 more source

Optimization of DMD-based independent amplitude and phase modulation by analysis of target complex wavefront

open access: yesScientific Reports, 2022
The paper presents the results of a comprehensive study on the optimization of independent amplitude and phase wavefront manipulation which is implemented using a binary digital micromirror device. The study aims to investigate the spatial resolution and
Alexandra Georgieva   +2 more
doaj   +1 more source

Holography in the invisible. From the thermal infrared to the terahertz waves: outstanding applications and fundamental limits

open access: yesLight: Advanced Manufacturing, 2022
Since its invention, holography has been mostly applied at visible wavelengths in a variety of applications. Specifically, non-destructive testing of manufactured objects was a driver for developing holographic methods and all related ones based on the ...
Marc Georges   +2 more
doaj   +1 more source

Digital Plasmonic Holography [PDF]

open access: yesImaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018
AbstractWe demonstrate digital plasmonic holography for direct in-plane imaging with propagating surface-plasmon waves. Imaging with surface plasmons suffers from the lack of simple in-plane lenses and mirrors. Lens-less digital holography techniques, however, rely on digitally decoding an interference pattern between a reference wave and an object ...
Nelson, Joseph W.   +3 more
openaire   +3 more sources

Robust Holographic Reconstruction by Deep Learning with One Frame

open access: yesPhotonics, 2023
A robust method is proposed to reconstruct images with only one hologram in digital holography by introducing a deep learning (DL) network. The U-net neural network is designed according to DL principles and trained by the image data set collected using ...
Xianfeng Xu   +3 more
doaj   +1 more source

Based on incoherent spatial light modulator telescopic experimental research of digital holographic imaging system about “White light”

open access: yesResults in Optics, 2021
At present, there are few researches about telescopic digital holography (TDH) on the combination of digital holography and telescope technology. Because this technology generally cause low phase shift accuracy and large image reconstruction distance ...
YuCheng Li   +4 more
doaj   +1 more source

Information multiplexing from optical holography to multi-channel metaholography

open access: yesNanophotonics, 2023
Holography offers a vital platform for optical information storage and processing, which has a profound impact on many photonic applications, including 3D displays, LiDAR, optical encryption, and artificial intelligence.
Márquez Andrés   +4 more
doaj   +1 more source

Understanding Basics Holography: Review Principle and Recording Technique of Holography

open access: yesRisenologi, 2020
In this article, we review the basics of holography. Starting to knowing the description of holography, mathematical processing, etc. That also include the principle physics phenomenon in Optical field, the trajectory (Technique) hologram, and the ...
Irsad Tio Majid
doaj   +1 more source

Digital holography with microcombs [PDF]

open access: yesEPJ Web of Conferences, 2023
Optical microresonators are attractive comb sources due to their small form factor and stable broad optical spectra. We report on the first demonstration of microcomb-based digital holography.
Amann Stephan   +7 more
doaj   +1 more source

Undersampled digital holography

open access: yesOptics Express, 2009
Acceptable signal recovery of the band-pass signals typically used in the off-axis digital holography systems is possible in the undersampling conditions. A typical system is considered in which the angle between two beams represents a variable parameter.
Demoli, Nazif   +4 more
openaire   +3 more sources

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