Reports of the Technical Conference of the Institute of Image Electronics Engineers of Japan
Online ISSN : 2758-9218
Print ISSN : 0285-3957
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Reports of the 228th Technical Conference of the Institute of Image Electronics Engineers of Japan
Displaying 1-14 of 14 articles from this issue
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Date: November 10, 2006 Location: Kogakuin University
9:00-10:00 Chair: Naoki KOBAYASHI, NTT EAST
10:10-11:10 Chair: Makoto OKUI, The National Institute of Information and Communications Technology
13:30-15:00 Chair: Shiro SUYAMA, NTT Cyber Space Laboratory
  • «Invited Lecture 3» Generation of Natural Three-Dimensional Image by Directional Display
    - Solving Accommodation-Vergence Conflict -
    Yasuhiro TAKAKI
    Session ID: 06-03-05
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_21
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    Conventional three-dimensional displays do not satisfy all physiological factors of human three-dimensional perception completely so that there are two problems: one is accommodation-vergence conflict and the other is imperfect motion parallax. Super multi-view (SMV) display technique and high-density directional (HDD) display technique have the possibility to solve these two problems to realize natural three-dimensional displays. In this paper, these two techniques are described. The way of retinal image formation by the HDD display is explained to show that very smooth motion parallax is obtained by this technique. The measurement results of accommodation responses to the HDD display are shown, and the enlargement of the depth range in which the accommodation works properly is shown to be explained by considering the enlargement of the depth of field of an eye imaging system depending on the ray directivity. The development targets for the natural three-dimensional displays are described.
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  • «Invited Lecture 3» Autostereoscopic Display Based on the Integral Imaging Method and its Application
    Kazuki TAIRA, Rieko FUKUSHIMA, Tatsuo SAISHU, Hiroyuki NAGATANI, Yuzo ...
    Session ID: 06-03-06
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_27
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    Integral imaging is one of the most ideal autostereoscopic dispay method. We report the details of a developed 3-D display system and possibility of its application.
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  • «Invited Lecture 3» Spatial image by “ Fractional view display ”
    Motonaga ISHII
    Session ID: 06-03-07
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_33
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    “Fractional view display” is the 3D Display that can represent the “ spatial image”, - or the appearance of objects. It can represent a “ spatial image” although it is constructed by simple hardware, because the directions of rays are able to calculated very correctly. Spatial image is the image that constructed by not interleaving several views, but sampling the rays in real space. The methods using spatial image can provide observers more natural 3D images than multi-view method can do.Because of sampling the rays impartially, Fractional view method can provide the more “ seamless view” than multi-view method, and higher resolution than the other spatial imaging method.
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15:10-16:10 Chair: Haruhiko OKUMURA, Toshiba Corporation
16:20-17:20 Chair: Hisashi OGURO, Toppan Printing Co.,Ltd.
11:10-13:30 Chair: Tatsuki INUZUKA, Hitachi, Ltd.
  • Addition of painting tone to photograph
    Hiroyuki TANAKA, Hiroyuki KOBAYASHI, Naokazu AOKI
    Session ID: 06-03-12
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_55
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    Tone is mentioned as a factor to decide the evaluation of images, as well as theme, composition or color. Tone is portrayed by lighting and shadow. The sensitivity of human's eyes is high in brightness, so it is thought that tone is a big factor in the image portrayal. In this paper addition of painting tone which was excellent to photograph for improving image's portrayal.
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  • Real-time Reconstruction of Wide-Angle Images from Past Image-Frames with Adaptive Depth Models
    Kenji HONDA, Naoki HASHIMOTO, Makoto SATO
    Session ID: 06-03-13
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_59
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    3-D Scene generation with real images on immersive projection displays which have high-resolution and wide field of view are expected to be applied for many kinds of fields like a tele-existence and interactive communication. However, that challenge requires special devices, like a multiple camera array, or off-line processings which obstruct interactive contents. Therefore, in this research, we propose a technique that reconstructs wide view-angle images for immersive projection displays by reusing past image frames including peripheral images which are not seen from a present viewpoint in real-time.
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  • Analysis of length perception on hemispherical visual display system
    Haruka AMANUMA, Hiroshi HOSHINO, Nobuyuki SHIBANO, Kazuya SAWADA, Youn ...
    Session ID: 06-03-14
    Published: November 10, 2006
    Released on J-STAGE: January 31, 2007
    DOIhttps://doi.org/10.11371/wiieej.06-03.0_63
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    For any design analysis, it is very important to have a real size visualization of the virtual world. However, the appearance of a virtual world differs from that of the real world. In particular, there are large disparities in the size of interior areas, such as rooms, even though the image is projected using the proper transformations to the correct size. The room appears larger than it is in reality, and as do objects close to the camera. We have experimented with the perceived "errors" in length and depth on CyberDome, a hemispherical visual display system, in order to find the cause of this difference.
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