Real-time multiple SLM color holographic display using multiple GPU acceleration

Yaraş, Fahri; Kang, Hoonjong; Onural, Levent

doi:10.1364/dh.2009.dwa4

Cited by 11 publications

(12 citation statements)

References 6 publications

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“…A variety of methods have been proposed for fast synthesis of CGHs as look-up table methods with pre-computed fringes [63,64], recurrence relation methods instead of directly calculating the optical path [65], introduction of wavefront recording plane [66], HS methods and many others. Hardware solutions as special-purpose computers like 'Holographic ReconstructioN (HORN)' [67] or GPU computing [32,[68][69][70] are very effective for fast calculation because the pixels on a CGH can be calculated independently.…”

Section: Methods For Computer Generation Of Holographic Fringe Patternsmentioning

confidence: 99%

3D Capture and 3D Contents Generation for Holographic Imaging

Stoykova¹,

Kang²,

Kim³

et al. 2017

Holographic Materials and Optical Systems

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The intrinsic properties of holograms make 3D holographic imaging the best candidate for a 3D display. The holographic display is an autostereoscopic display which provides highly realistic images with unique perspective for an arbitrary number of viewers, motion parallax both vertically and horizontally, and focusing at different depths. The 3D content generation for this display is carried out by means of digital holography. Digital holography implements the classic holographic principle as a two-step process of wavefront capture in the form of a 2D interference pattern and wavefront reconstruction by applying numerically or optically a reference wave. The chapter follows the two main tendencies in forming the 3D holographic content-direct feeding of optically recorded digital holograms to a holographic display and computer generation of interference fringes from directional, depth and colour information about the 3D objects. The focus is set on important issues that comprise encoding of 3D information for holographic imaging starting from conversion of optically captured holographic data to the display data format, going through different approaches for forming the content for computer generation of holograms from coherently or incoherently captured 3D data and finishing with methods for the accelerated computing of these holograms.

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Section: Methods For Computer Generation Of Holographic Fringe Patternsmentioning

confidence: 99%

3D Capture and 3D Contents Generation for Holographic Imaging

Stoykova¹,

Kang²,

Kim³

et al. 2017

Holographic Materials and Optical Systems

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“…One of the fast methods is the coherent holographic stereogram [9]. The ACPAS [8,21,22,27,28] is the latest improvement of the coherent holographic stereogram. The reconstruction from the ACPAS closely resembles the reconstruction from the Fresnel hologram, and computation using the ACPAS is much faster than the computation of the Fresnel hologram.…”

Section: Algorithmmentioning

confidence: 99%

“…However due to low coherence characteristics reconstructions might be somewhat blurred. Holographic reconstructions using phase-only SLMs and LEDs were reported in [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Real-time phase-only color holographic video display system using LED illumination

2009

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A real-time full-color phase-only holographic display system generates holograms of 3D objects. The system includes a 3D object formed by voxels, an internet-based transmission capability that transmits the object information to the server, a real-time hologram generation unit, and a holographic display unit with incoherent illumination. The server calculates three phase holograms for RGB components using multiple GPUs. The resultant phase holograms are saved into an RGB bitmap image and loaded to the phase-only spatial light modulators (SLMs). SLMs are illuminated uniformly by LEDs, and reconstructed waves are aligned and overlapped by using high precision optics and stages. Experimental results are satisfactory.

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“…Although LEDs have such desirable properties, quality of holo-graphic reconstructions might degrade due to low coherence characteristics. Three different color LEDs are used with three phase-only SLMs to have full color holographic reconstruction [17,18].…”

Section: Fig 1 Rigid 3d Objectmentioning

confidence: 99%

Real-time color holographic video display system

Yaraş

Kang

Onural

2009

2009 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video

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A real-time multi-GPU color holographic video display system computes holograms from 3D video of a rigid object. System has three main stages; client, server and optics. 3D coordinate and texture information are kept in client and sent online to the server through the network. In the server stage, with the help of the parallel processing ability of the GPUs and segmentation algorithms, phase-holograms are computed in real-time. The graphic card of the server computer drives the SLMs and red, green and blue channels are controlled in parallel. Resultant color holographic video is loaded to the SLMs which are illuminated by expanded light from LEDs. In the optics stage, reconstructed color components are combined by using beam splitters. Reconstructions are captured by a CCD array without any supporting optics. Experimental results are satisfactory.

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Real-time multiple SLM color holographic display using multiple GPU acceleration

Abstract: A real-time color holographic video display system computes holograms from point cloud of a rigid object by using multi-GPU system and uses three different colored LEDs for reconstruction. Experimental results are satisfactory.

Cited by 11 publications

References 6 publications

3D Capture and 3D Contents Generation for Holographic Imaging

3D Capture and 3D Contents Generation for Holographic Imaging

Real-time phase-only color holographic video display system using LED illumination

Real-time color holographic video display system

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