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Open Access Integral Imaging System using Locally Controllable Point Light Source Array

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An integral imaging system can be utilized for many threedimensional (3D) imaging applications. However, improvement in display performance, such as resolution and viewing angle, is generally difficult because a large amount of image information is required. Therefore, we propose an integral imaging system using a locally controllable point light source array. In this system, point light sources with the desired light distribution angle, light direction, and light-diffusing states are generated as a local backlight through the projection of a predetermined image pattern. An integral 3D image with an enhanced viewing angle can be reproduced by controlling the light distribution of each point light source in time division and displaying the corresponding elemental images on a liquid-crystal display (LCD). Moreover, a high-resolution twodimensional (2D) image can be reproduced on the entire or partial region of the display screen by generating diffused light in predetermined areas. In this study, a prototype display system was developed and experimentally evaluated to demonstrate the enhancement of the horizontal viewing angle from 14.2˚ to 28.0˚. Furthermore, we confirmed the possibility of partially switching between 3D and 2D images.
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Keywords: Enhancement of viewing angle; Integral imaging system; Point light source array; Three-dimensional/two-dimensional switchable display

Document Type: Research Article

Publication date: January 28, 2018

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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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