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Open Access Mid-air imaging technique for architecture in public space

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Mid-air imaging is promising for glasses-free mixed reality systems in which the viewer does not need to wear any special equipment. However, it is difficult to install an optical system in a public space because conventional designs expose the optical components and disrupt the field of view. In this paper, we propose an optical system that can form mid-air images in front of building walls. This is achieved by installing optical components overhead. It displays a vertical mid-air image that is easily visible in front of the viewer. Our contributions are formulating its field of view, measuring the luminance of mid-air images formed with our system by using a luminance meter, psychophysical experiments to measure the resolution of the mid-air images formed with our system, and selection of suitable materials for our system. As a result, we found that highly reflective materials, such as touch display, transparent acrylic board, and white porcelain tile, are not suitable for our system to form visible mid-air images. We prototyped two applications for proof of concept and observed user reactions to evaluate our system.
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Keywords: Mid-air image; Mixed Reality; public space

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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