&lt;title&gt;Ultragram: a generalized holographic stereogram&lt;/title&gt;

Halle, Morris; Benton, Stephen A.; Klug, Michael A.; Underkoffler, John

doi:10.1117/12.44722

Cited by 47 publications

(35 citation statements)

References 8 publications

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“…홀로그래픽 스테레오그램은 수평 시차만을 갖는 수평시차 홀로그래픽 스테레오그램(HPO) [7] 과 수평 및 수직 시차를 갖는 완전 시차 홀로그래픽 스테레 오그램으로 구분 될 수 있으며, 본 논문에서는 완전 시차 홀로그래픽 스테레오그램만을 다룬다.…”

Section: ⅱ 홀로그래픽 스테레오그램unclassified

Numerical Reconstruction of Holographic Stereogram with Radial Distortion

Park¹,

Kang²,

Hong³

et al. 2013

The Journal of Korea Information and Communications Society

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Evaluation of the effect of radial distortion for a holographic stereogram demands conducting an experiment which comprises rendering of a 3D obejc, acquisition of perspective images, rearrangement of the acquired images for hogel images and quality assessment of the observing image reconstructed from the holographic stereogram.We propose numerical implementation of this evaluation by a specially developed algorithm for modeling of all required steps. The modeling is done by using a numerical model of an optical engine for generation of radially distorted hogel images at various degrees of distortion. The distorted images are used to form the holographic stereogram and to make the numerically reconstructed images from the holographic stereogram which are observed by an observer at desired location. The reconstructed images are compared by using PSNR.

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Section: ⅱ 홀로그래픽 스테레오그램unclassified

Numerical Reconstruction of Holographic Stereogram with Radial Distortion

Park¹,

Kang²,

Hong³

et al. 2013

The Journal of Korea Information and Communications Society

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“…The multipleviewpoint-rendering approach [Hal98] harnesses perspective coherence to improve the efficiency of rendering multiple perspective image sequences. Halle et al [HBKU91] proposed a method where static holographic stereograms account for the viewer's distance but not their height. The light field display recently presented by Jones et al [JMY * 07] also uses a MCOP approach, similar to ours, but their display geometry is radically different.…”

Section: Related Workmentioning

confidence: 99%

GPU Accelerated Direct Volume Rendering on an Interactive Light Field Display

Agus

Gobbetti

Guitián

et al. 2008

Computer Graphics Forum

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“…This bandlimiting 14,15 of the parallax views may be accomplished during view capture by using a real or synthetic camera aperture at least 2w h in diameter.…”

Section: Ideal Stereogram Resolution For the Humanmentioning

confidence: 99%

“…RIP holograms offer the ability to vary their spatial and angular resolution in order to satisfy scene sampling requirements, constrained by the properties of a given electroholographic display and the diffraction limit. RIP holograms, the computed analog of optically recorded ultragrams, 3 allow the shape and location of one or more projection surfaces ͑where a projection surface corresponds to the single "slit plane" in the holographic stereogram literature͒ to be specified. Whereas in conventional computed holographic stereograms the slit plane most often coincides with the hologram plane, a RIP hologram's projection surfaces are located off the hologram plane.…”

Section: Computed Holographic Stereogramsmentioning

confidence: 99%

Reconfigurable image projection holograms

Plesniak

Halle

Bove³

et al. 2006

Opt. Eng

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Abstract. We introduce reconfigurable image projection ͑RIP͒ holograms and a method for computing RIP holograms of three-dimensional ͑3-D͒ scenes. RIP holograms project one or more series of parallax views of a 3-D scene through one or more holographically reconstructed projection surfaces. Projection surfaces are defined at locations at which the hologram reconstructs a variable number of real or virtual images, called holographic primitives, which collectively compose the surface and constitute exit pupils for the view pixel information. RIP holograms are efficiently assembled by combining a sweep of 2-D parallax views of a scene with instances of one or more precomputed diffractive elements, which are permitted to overlap on the hologram, and which reconstruct the holographic primitives. The technique improves on the image quality of conventional stereograms while affording similar efficient computation: it incorporates realistic computer graphic rendering or high-quality optical capture of a scene, it eliminates some artifacts often present in conventional computed stereograms, and its basic multiply-and-accumulate operations are suitable for hardware implementation. The RIP approach offers flexible tuning of capture and projection together, according to the sampling requirements of the scene and the constraints of a given display architecture.

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<title>Ultragram: a generalized holographic stereogram</title>

Cited by 47 publications

References 8 publications

Numerical Reconstruction of Holographic Stereogram with Radial Distortion

Numerical Reconstruction of Holographic Stereogram with Radial Distortion

GPU Accelerated Direct Volume Rendering on an Interactive Light Field Display

Reconfigurable image projection holograms

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