Three-dimensional video system based on integral photography

Okano, Fumio; Arai, Jun; Hoshino, Hiroo; Yuyama, Ichiro

doi:10.1117/1.602152

Cited by 179 publications

(78 citation statements)

References 10 publications

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“…[1][2][3][4][5] Holography is one popular technique that can record and reconstruct 3D objects. Recently, digital holography 6 has become viable with the ongoing development of megapixel CCD sensors that have sufficient dynamic range in each pixel.…”

Section: Introductionmentioning

confidence: 99%

Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram

et al. 2002

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A three-dimensional (3D) object reconstruction technique that uses only phase information of a phaseshifting digital hologram and a phase-only spatial-light modulator is proposed. It is well known that a digital hologram can store both amplitude and phase information of an optical electric field and can reconstruct the original 3D object in a computer. We demonstrate that it is possible to reconstruct optically 3D objects using only phase information of the optical field calculated from phase-shifting digital holograms. The use of phase-only information enables us to reduce the amount of data in the digital hologram and reconstruct optically the 3D objects using a liquid-crystal spatial light modulator without optical power loss. Numerical evaluation of the reconstructed 3D object is presented.

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Section: Introductionmentioning

confidence: 99%

Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram

et al. 2002

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“…Therefore, the spatial frequency distribution on the lens plane Qf ξ ; f η is calculated by converting the X and Y of gX; Y into f ξ and f η in accordance with Eqs. (3) and (4). Here, the elementary image gX; Y lacks phase information, so Qf ξ ; f η has only an intensity.…”

Section: Cghs Using Mvismentioning

confidence: 99%

“…Generating CGHs using integral photography (IP) [3] is another approach. IP is a technique to record 3D information of a scene as IP images by lens array [4]. Using the 3D information obtained by IP, CGH is generated without creating 3D models of objects.…”

Section: Introductionmentioning

confidence: 99%

Computer-generated holograms using multiview images captured by a small number of sparsely arranged cameras

et al. 2012

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Computer-generated holograms (CGHs) using multiview images (MVIs) are holograms generated with multiple ordinary cameras. This process typically requires a huge number of cameras arranged at high density. In this paper, we propose a method to improve CGH using MVIs that obtains the MVIs by using voxel models rather than cameras. In the proposed method the voxel model is generated using the shape-from-silhouette (SFS) technique. We perform SFS using a small number of cameras arranged sparsely to create voxel models of objects and then generate the required number of images from these models by volume rendering. This enables us to generate CGHs using MVIs with just a small number of sparsely arranged cameras. Moreover, the proposed method arrange CGHs using MVIs at arbitrary positions.

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“…Numerous variants of integral cameras have been built over the last century, and many are described in books on 3D imaging [Javidi and Okano 2002;Okoshi 1976]. For example, systems very similar to Adelson and Wang's were built by Okano et al [1999] and Naemura et al [2001], using graded-index (GRIN) microlens arrays. Another integral imaging system is the Shack-Hartmann sensor used for measuring aberrations in a lens [Tyson 1991].…”

Section: Related Workmentioning

confidence: 99%

Fourier slice photography

2005

ACM SIGGRAPH 2005 Papers

186

197

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This paper contributes to the theory of photograph formation from light fields. The main result is a theorem that, in the Fourier domain, a photograph formed by a full lens aperture is a 2D slice in the 4D light field. Photographs focused at different depths correspond to slices at different trajectories in the 4D space. The paper demonstrates the utility of this theorem in two different ways. First, the theorem is used to analyze the performance of digital refocusing, where one computes photographs focused at different depths from a single light field. The analysis shows in closed form that the sharpness of refocused photographs increases linearly with directional resolution. Second, the theorem yields a Fourier-domain algorithm for digital refocusing, where we extract the appropriate 2D slice of the light field's Fourier transform, and perform an inverse 2D Fourier transform. This method is faster than previous approaches.

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Three-dimensional video system based on integral photography

Cited by 179 publications

References 10 publications

Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram

Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram

Computer-generated holograms using multiview images captured by a small number of sparsely arranged cameras

Fourier slice photography

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