Results 21 to 30 of about 16,220 (242)

Multi frame holograms batched optimization for binary phase spatial light modulators [PDF]

open access: yesScientific Reports
Phase retrieval methods used in computer generated holograms such as Gerchberg-Saxton and gradient descent give results which are prone to noise and other defects.
Jinze Sha   +4 more
doaj   +2 more sources

Synthesizing optical spectra using computer-generated holography techniques

open access: yesNew Journal of Physics, 2021
Experimental control and detection of atoms and molecules often rely on optical transitions between different electronic states. In many cases, substructure such as hyperfine or spin-rotation structure leads to the need for multiple optical frequencies ...
Connor M Holland   +2 more
doaj   +1 more source

Holographic Tailoring of Structured Light Field with Digital Device

open access: yesPhotonics, 2022
Structured light fields have attracted much attention due to rich spatial degrees of freedom. The tailoring of an arbitrary structured light field on demand is the precondition for the application of structured light.
Zhensong Wan   +3 more
doaj   +1 more source

Computer-Generated Hologram Based on Reference Light Multiplexing for Holographic Display

open access: yesApplied Sciences, 2021
In this article, we propose a reference light wave multiplexing scheme to increase the information capacity of computer-generated holograms. The holograms were generated by different reference light waves and superimposed together as a multiplexed ...
Dapu Pi, Juan Liu
doaj   +1 more source

Simultaneous Color Computer Generated Holography

open access: yesSIGGRAPH Asia 2023 Conference Papers, 2023
Computer generated holography has long been touted as the future of augmented and virtual reality (AR/VR) displays, but has yet to be realized in practice. Previous high-quality, color holographic displays have made either a 3$\times$ sacrifice on frame rate by using a sequential color illumination scheme or used more than one spatial light modulator ...
Eric Markley   +4 more
openaire   +2 more sources

Computer-generated holography in the intermediate domain

open access: yesJournal of the Optical Society of America A, 2022
Iterative Fourier transform algorithms are widely used for hologram generation for phase-modulating spatial light modulators. In this paper, we introduce a new technique called the “intermediate domain,” which decomposes the Fourier transforms used into multiple subtransforms, the combination of which can offer major performance
Peter J. Christopher   +4 more
openaire   +2 more sources

Interactive Holographic Display for Real-Time Drawing and Erasing of 3D Point-Cloud Images With a Fingertip

open access: yesIEEE Access, 2021
We demonstrate an interactive holographic display system for real-time drawing and erasing of 3D point-cloud images. This system detects the position of the observer's fingertip with a motion sensor, which it uses to calculate the complex amplitude ...
Mikito Takenaka   +3 more
doaj   +1 more source

Reduction in the reconstruction error of computer-generated holograms by photorefractive volume holography [PDF]

open access: yes, 1993
We suggest a method for coding high-resolution computer-generated volume holograms. It involves splitting the computer-generated hologram into multiple holograms, their individual recording as volume holograms by use of the maximal resolution available ...
Barhen, Jacob   +3 more
core   +2 more sources

Watermarking and Encryption for Holographic Communication

open access: yesPhotonics, 2022
Holographic communication is a three-dimensional (3D) video communication technology based on computer-generated holograms (CGHs) which has the potential to give users a more realistic visual perception.
Zehao He, Kexuan Liu, Liangcai Cao
doaj   +1 more source

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