Results 61 to 70 of about 1,985,754 (220)

Fast method for calculating a curved hologram in a holographic display.

open access: yesOptics Express, 2020
A curved hologram can increase the view angle in a holographic display. The huge data processing and curved computer-generated hologram (CCGH) computation time is still a challenge for real-time display.
Ruidan Kang   +3 more
semanticscholar   +1 more source

Full-color computational holographic near-eye display

open access: yesJournal of Information Display, 2019
Near-eye displays (NEDs) are an excellent candidate for the future of augmented reality. Conventional micro-display based NED designs mostly provide stereoscopic 3D experience, which leads to visual discomfort due to vergence-accommodation conflict ...
Seyedmahdi Kazempourradi   +2 more
doaj   +1 more source

Foveated holographic near-eye 3D display

open access: yesOptics Express, 2020
We present a foveated rendering method to accelerate the amplitude-only computer-generated hologram (AO-CGH) calculation in a holographic near-eye 3D display. For a given target image, we compute a high-resolution foveal region and a low-resolution peripheral region with dramatically reduced pixel numbers.
Chenliang Chang, Wei Cui, Liang Gao
openaire   +2 more sources

Reducing speckle artifacts in digital holography through programmable filtration

open access: yesETRI Journal, 2019
We propose a speckle reduction technique in electronic holographic display systems, where digital micro‐mirror array devices are used as spatial light modulators.
Yongjun Lim   +5 more
doaj   +1 more source

Enlarging field of view by a two-step method in a near-eye 3D holographic display.

open access: yesOptics Express, 2020
The narrow field of view (FOV) has always been one of the most with limitations that drag the development of holographic three-dimensional (3D) near-eye display (NED).
Zhiqi Zhang   +3 more
semanticscholar   +1 more source

Reconstruction of a three-dimensional color-video of a point-cloud object using the projection-type holographic display with a holographic optical element.

open access: yesOptics Express, 2020
Here, we managed to reconstruct a three-dimensional color video of a point-cloud object using a projection-type holographic display with a holographic optical element as an optical screen.
H. Amano   +7 more
semanticscholar   +1 more source

Digital Holographic Three-Dimensional Video Displays [PDF]

open access: yesProceedings of the IEEE, 2011
Holography aims to record and regenerate volume filling light fields to reproduce ghost-like 3-D images that are optically indistinguishable from their physical 3-D originals. Digital holographic video displays are pixelated devices on which digital holograms can be written at video rates.
Onural, L., Yaras, F., Kang, H.
openaire   +4 more sources

Enhanced see-through near-eye display using time-division multiplexing of a Maxwellian-view and holographic display.

open access: yesOptics Express, 2019
In this paper, we suggest the improved integration of a holographic display and a Maxwellian-view display using time-division multiplexing and describe an image rendering process for the proposed system.
Jin Su Lee, YooKwang Kim, M. Lee, Y. Won
semanticscholar   +1 more source

Scaling of Three-Dimensional Computer-Generated Holograms with Layer-Based Shifted Fresnel Diffraction

open access: yesApplied Sciences, 2019
Holographic three-dimensional (3D) displays can reconstruct a whole wavefront of a 3D scene and provide rich depth information for the human eyes. Computer-generated holographic techniques offer an efficient way for reconstructing holograms without ...
Hao Zhang, Liangcai Cao, Guofan Jin
doaj   +1 more source

Holographic display having a wide viewing zone using a MEMS SLM without pixel pitch reduction.

open access: yesOptics Express, 2020
A one-micron pixel pitch is believed to be required for spatial light modulators (SLMs) to realize holographic displays possessing a wide viewing zone.
Yoshitaka Takekawa   +2 more
semanticscholar   +1 more source

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