Interactive Holographic Display Based on Finger Gestures.

PLUTO / PLUTO-2 Spatial Light Modulators
AR/VR/MR / Holographic Display
Published on:
Authors: Yamada, Shota and Kakue, Takashi and Shimobaba, Tomoyoshi and Ito, Tomoyoshi
Abstract:

“In this paper, we demonstrate an interactive, finger-sensitive system which enables an observer to intuitively handle electro-holographic images in real time. In this system, a motion sensor detects finger gestures (swiping and pinching) and translates them into the rotation and enlargement/reduction of the holographic image, respectively. By parallelising the hologram calculation using a graphics processing unit, we realised the interactive handling of the holographic image in real time. In a demonstration of the system, we used a Leap Motion sensor and a phase modulation-type spatial light modulator with 1,920 × 1,080 pixels and a pixel pitch of 8.0 µm × 8.0 µm. The constructed interactive finger-sensitive system was able to rotate a holographic image composed of 4,096 point light sources using a swiping gesture and enlarge or reduce it using a pinching gesture in real time. The average calculation speed was 27.6 ms per hologram. Finally, we extended the constructed system to a full-colour reconstruction system that generates a more realistic three-dimensional image. The extended system successfully allowed the handling of a full-colour holographic image composed of 1,709 point light sources with a calculation speed of 22.6 ms per hologram.”

Open Access

Publication: Scientific Reports
Issue/Year: Scientific Reports, volume 8, Article number: 2010 (2018)
DOI: 10.1038/s41598-018-20454-6
Link: https://doi.org/10.1038/s41598-018-20454-6

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