Results 11 to 20 of about 12,678 (263)

Binary Computer-Generated Holograms by Simulated-Annealing Binary Search

open access: yesPhotonics, 2022
The binary computer-generated hologram (BCGH) has attracted much attention recently because it can address the high-speed binary spatial light modulator (SLM), such as a digital micromirror device (DMD) SLM.
Jung-Ping Liu, Chen-Ming Tsai
doaj   +1 more source

Review of computer-generated hologram algorithms for color dynamic holographic three-dimensional display

open access: yesLight: Science & Applications, 2022
Holographic three-dimensional display is an important display technique because it can provide all depth information of a real or virtual scene without any special eyewear.
Dapu Pi, Juan Liu, Yongtian Wang
doaj   +1 more source

Photorealistic Rapid Computer-Generated Holography Employing an Enhanced Path Tracing Technique With Sequence Generated Trial

open access: yesIEEE Photonics Journal, 2023
Fast holographic generation technology depends on the swift creation of computer-generated holograms (CGHs). Currently, the fast generation method of computer-generated holograms based on ray tracing is still based on non-physical ray tracing methods ...
Xindi Chen   +5 more
doaj   +1 more source

Performance Estimation of Intensity Accumulation Display by Computer-Generated Holograms

open access: yesApplied Sciences, 2021
The image generated by binary computer-generated holograms (CGHs) always suffers from serious speckle noise. Thanks to the fast frame rate of the binary spatial light modulator, the speckle can be significantly suppressed by intensity accumulation, i.e.,
Jung-Ping Liu   +3 more
doaj   +1 more source

Fast 3D Analytical Affine Transformation for Polygon-Based Computer-Generated Holograms

open access: yesApplied Sciences, 2022
We present a fast 3D analytical affine transformation (F3DAAT) method to obtain polygon-based computer-generated holograms (CGHs). CGHs consisting of tens of thousands of triangles from 3D objects are obtained by this method.
Houxin Fan   +6 more
doaj   +1 more source

QUALITY ASSESSMENT OF BINARY OBJECT IMAGES RECONSTRUCTED BY COMPUTER-GENERATED HOLOGRAMS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research.The paper considers the issues of objective quality assessment of computer-generated Fresnel holograms and reconstructed binary object images. Method.The work is performed by the method of projection holographic photolithography based
Sergey N. Koreshev   +3 more
doaj   +1 more source

Direct Laser Writing of Computer-Generated Holograms by Photodissolution of Silver in Arsenic Trisulfide

open access: yesOptics, 2023
Photodissolution is a process that is well known for its ability to cause inclusion of silver into the matrix of a chalcogenide layer, changing its optical properties.
Arjun Karimbana Kandy   +6 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

Form-birefringent computer-generated holograms [PDF]

open access: yesOptics Letters, 1996
Polarization-selective computer-generated holograms made with form-birefringent nanostructures were designed, fabricated, and evaluated experimentally at 1.5 microm. The fabricated element showed a large polarization contrast ratio (>250:1) and a high diffraction efficiency (>40% for a binary phase level element).
Xu, Fang   +5 more
openaire   +3 more sources

Wavelength-multiplexed computer-generated volume holography [PDF]

open access: yes, 1992
We demonstrate recording and reconstruction of multiple-computer-generated wavelength-multiplexed volume holograms in a holographic storage medium.
Rosen, Joseph   +2 more
core   +2 more sources

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