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Multiwavefront digital holographic television

Malgorzata Kujawinska, Tomasz Kozacki, Claas Falldorf, Thomas Meeser, Bryan M. Hennelly, Piotr Garbat, Weronika Zaperty, Mikko Niemelä, Grzegorz Finke, Marcin Kowiel, and Thomas Naughton

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Abstract

This paper presents the full technology chain supporting wide angle digital holographic television from holographic capture of real world objects/scenes to holographic display with an extended viewing angle. The data are captured with multiple CCD cameras located around an object. The display system is based on multiple tilted spatial light modulators (SLMs) arranged in a circular configuration. The capture-display system is linked by a holographic data processing module, which allows for significant decoupling of the capture and display systems. The presented experimental results, based on the reconstruction of real world, variable in time scenes, illustrates imaging dynamics, viewing angle and quality.

© 2014 Optical Society of America

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Supplementary Material (3)

Media 1: MOV (3916 KB)     
Media 2: MOV (2963 KB)     
Media 3: MOV (3256 KB)     

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Figures (9)
Fig. 1
Fig. 1 The digital holographic capture system: (a) the scheme and (b) the photo of the setup.

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Fig. 2
Fig. 2 Numerical reconstructions of digital holograms of a watch captured by different sensors at the same time.

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Fig. 3
Fig. 3 The digital holographic display: (a) the scheme and (b) photo.

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Fig. 4
Fig. 4 Illustration of capture system calibration, image of calibration target from (a) most right “1” and (b) most left “6” CCD; (c) CCD positions and orientations calculated from six recordings (axes in mm).

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Fig. 5
Fig. 5 (a) The 3D scene with five cross hairs on three planes; (b) Numerical reconstruction of CGH for (b) left most and (c) right most SLM. The centre cross hair is difficult to see because it is very narrow.

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Fig. 6
Fig. 6 The data flow in the holographic television system. The numbers determine the alternative location of data processing: (1) on the capture side, (2) on the display side, or (3) partially on both sides; P, C, and D denote processing, compression, and decompression, respectively.

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Fig. 7
Fig. 7 Overview of the data manipulation and transfer stages between capture and display.

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Fig. 8
Fig. 8 GPU Processing and data transfer after decompression.

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Fig. 9
Fig. 9 Images and videos of reconstructions from MWFs by separate SLMs 1-6 for (a) watch (Media 1) and (b) chicks (Media 2) objects in the display system acquired during test transfer and the videos of wide viewing angle image of static and running watch combined from all SLMs images (Media 3).

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Tables (1)

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Table 1 The frame rates for SingleGPU / MultiGPU solutions

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Equations (1)

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h 1 = z 1 ⋅ λ 1 Δ 1 ,
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