ICAT-EGVE2018

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https://diglib.eg.org/handle/10.2312/2632674

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Browsing ICAT-EGVE2018 by Subject "Computing methodologies → Mixed / augmented reality"

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    Materiality Manipulation by Light-Field Projection from Reflectance Analysis
    (The Eurographics Association, 2018) Murakami, Kouki; Amano, Toshiyuki; Bruder, Gerd and Yoshimoto, Shunsuke and Cobb, Sue
    In this paper, we report a method for changing the appearance of an object to different colors as a function of viewing perspective with multiple projectors and cameras. If such appearance manipulation becomes possible, morpho butterfly colors, metallic reflection, and other structural colors can be expressed. For such appearance editing, we proposed a reflection model which describes the optical response of projectors and cameras. We also propose methods for calculating the reflectance matrix and the optimized projection images using non-negative minimization. Through experimental results, we confirmed our method allowed perspective-dependent appearance to be designed by choosing the appropriate reflectance from the non-Lambert reflection area.
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    Scalable Autostereoscopic Display with Temporal Division Method
    (The Eurographics Association, 2018) Kurogi, Tadatoshi; Nii, Hideaki; Peiris, Roshan Lalintha; Minamizawa, Kouta; Bruder, Gerd and Yoshimoto, Shunsuke and Cobb, Sue
    Science-fiction has frequently depicted people directly interacting with life-size autostereoscopic images projected from the walls of buildings in public places. In this paper, we present a large modularized autostereoscopic display. The shape and size can be easily changed by rearranging the number of the multiple display modules. We propose a reconfigurable temporal division multiplexed autostereoscopic display module that can display aerial images. More-over, we show that the temporal division multiplexing method allows the autostereoscopic display to be viewed from a broad range of positions. In this paper, we discuss the design and implementation of this modularized 3D display technology. Furthermore, user evaluations confirmed that the depth perception of the image was improved by con-necting the multiple display modules.