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Open Access Light Field Modulation Using A Double-Lenticular Liquid Crystal Panel

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The ultimate goal of constructing an autostereoscopic display is to reproduce exact light fields of 3D scenes on the display’s surface. However, most existing autostereoscopic displays can only reproduce inexact light fields. Filling the gap between them has been a major target of research.

In this paper, we present a light field modulator consisting of a liquid crystal panel, a light diffuser, and a pair of lenticular sheets. The modulator will modify the intensity of light passing through it. When combined with a color filter, the modulator can also modify the color tone. Since the modification depends on the light’s propagation direction, the modulator can be tuned to improve the quality of the light field from being inexact to being nearly exact.

To further investigate the modulator’s capability, we put it in front of a multilayer display. The light fields reproduced by a multilayer display are only approximate especially when the display is tailored to cover a wide viewing zone. We observe that the modulator can mitigate the occurrence of artifacts in the outputted light fields. We also observe that monochromatic fields can be converted into color fields using the modulator.

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Document Type: Research Article

Publication date: 2016-02-14

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  • For more than 30 years, the Electronic Imaging Symposium has been serving those in the broad community - from academia and industry - who work on imaging science and digital technologies. The breadth of the Symposium covers the entire imaging science ecosystem, from capture (sensors, camera) through image processing (image quality, color and appearance) to how we and our surrogate machines see and interpret images. Applications covered include augmented reality, autonomous vehicles, machine vision, data analysis, digital and mobile photography, security, virtual reality, and human vision. IS&T began sole sponsorship of the meeting in 2016. All papers presented at EIs 20+ conferences are open access.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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