Results 31 to 40 of about 2,952 (284)

Perceptually motivated loss functions for computer generated holographic displays

Scientific Reports, 2022
Understanding and improving the perceived quality of reconstructed images is key to developing computer-generated holography algorithms for high-fidelity holographic displays.
Fan Yang, Andrew Kadis, Ralf Mouthaan, Benjamin Wetherfield, Andrzej Kaczorowski, Timothy D. Wilkinson   +5 more
doaj   +1 more source

MICROSTRUCTURE FORMATION ON THE BASIS OF COMPUTER GENERATED HOLOGRAM

, 2011
Implementation of computer-generated hologram of the emblem of Kaunas University of Technology by means of Fourier transformation from greyscale image, and transferring of the hologram to PMMA using elec-tronic lithography are analyzed in this paper ...
A. Palevičius, Palevičius, R., Palevičius, R.,, Palevičius, A.,, Narijauskaitė, B., R. Palevičius, G. Janušas, B. Narijauskaitė, Janušas, G.,, Janušas, G., Narijauskaitė, B.,, Palevičius, A.   +11 more
core   +1 more source

Application of Kinoform CGHs to an ID Tag System

IEEE Photonics Journal, 2010
In this paper, we successfully apply multilevel kinoform computer-generated hologram (CGH) patterns, which are recorded on a fine texture paper by a photo printer, into the hologram identification (ID) tag system.
Hye-Rim Kim, Ki-Mun Pak, Ki-Woo Jun, Hyun-Whan Choi, Ji-Song Lim, Yong-Hyub Won   +5 more
doaj   +1 more source

Design of a computer-generated waveguide hologram for integrated free space sensing

, 2021
In this work we present a design of a computer-generated waveguide hologram coupler with an ultra-long working distance and wavelength multiplexing in the near infrared.
Bente, Erwin, Tianran Liu, Erwin Bente, Liu, Tianran, Jiao, Yuqing, Yuqing Jiao, Bente, Erwin; id_orcid   +6 more
core   +1 more source

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

Applied 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, Takeshi Yamaguchi, Hiroshi Yoshikawa   +2 more
doaj   +1 more source

Influence of the ratio of the intensities of the reference and object waves on the intensity distribution in the holographic field

Научно-технический вестник информационных технологий, механики и оптики
The results of the research focused on the reference and object beam intensity ratio effect on the transmittance of computer-generated and analog holograms are presented.
S. N. Koreshev, S. O. Starovoitov
doaj   +1 more source

Computer-Generated Holograms for 3D Imaging

ACM Computing Surveys, 2020
Holography is usually considered as the ultimate way to visually reproduce a three-dimensional scene. Computer-generated holography constitutes an important branch of holography, which enables visualization of artificially generated scenes as well as real three-dimensional scenes recorded under white-light illumination.
Erdem Sahin, Elena Stoykova, Jani Mäkinen, Atanas P. Gotchev   +3 more
openaire   +2 more sources

Holo-U²Net for High-Fidelity 3D Hologram Generation

Sensors
Traditional methods of hologram generation, such as point-, polygon-, and layer-based physical simulation approaches, suffer from substantial computational overhead and generate low-fidelity holograms.
Tian Yang, Zixiang Lu
doaj   +1 more source

Optogenetic Stimulation of Human Neural Networks Using Fast Ferroelectric Spatial Light Modulator—Based Holographic Illumination

Applied Sciences, 2018
The generation and application of human stem-cell-derived functional neural circuits promises novel insights into neurodegenerative diseases. These networks are often studied using stem-cell derived random neural networks in vitro, with electrical ...
Felix Schmieder, Simon D. Klapper, Nektarios Koukourakis, Volker Busskamp, Jürgen W. Czarske   +4 more
doaj   +1 more source

Approximated Wavefront Composition for Computer-Generated Holograms Based on Tiny Logic Operations

IEEE Access, 2023
Accelerating the calculation of computer-generated holograms (CGHs) is an urgent requirement for realizing practical electro-holography for three-dimensional (3D) displays.
Takashi Nishitsuji, Tomoyoshi Shimobaba, Atsushi Shiraki, Tomoyoshi Ito   +3 more
doaj   +1 more source