ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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22.43
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • A New Design on Full Color Stereo-holography
    hui Wang, Chaofu Yin, Shigang Yu, Weimin Jin
    Article type: Article
    Pages 1-6
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we present a new design of linear lens array camera, with which and the rainbow holography a 3-D display of a natural scenery can be achieved. This method simplifies the stereo-holography while causing good results. This paper deals with the principle of this technique and gives the experimental results.
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  • Instant holographic stereogram printing technology
    Akira Shirakura, Nobuhiro Kihara, Shigeyuki Baba
    Article type: Article
    Pages 7-15
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    A high-speed one-step holographic stereogram printer has been developed. Since the printer is designed for easy operation under non-laboratory ambient conditions, an anti-vibration table or a dark room is not required. The printing system consists of a high-speed image processing device and a one-step holographic stereogram recording optical system. It takes less than 3 minutes to obtain a horizontal parallax 3D image 8cm x 6cm on DuPont photo-polymer film HRF700X071-20 including image processing time. The printer can be applied to many applications such as computer art graphics, visualization, CAD, medical imaging and so on. As one of the practical applications, an instant portrait printing system is developed. In this paper, we describe several key technologies as well as a practical method for evaluating the image quality produced by one-step hologram printers.
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  • Time sharing displaying method for displaying Computer Generated Hologram
    Tsutomu Horikoshi, Takaaki Akimoto, Kazuhito Higuchi, Noboru Sonehara
    Article type: Article
    Pages 17-21
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_17
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Time sharing methods : frame and field sharing methods for displaying computer-generated holograms are described. The dynamic range of gray levels is limited when using electronic display devices such as Liquid Crystal Displays (LCDs). Technically, it leads to a lack of sufficient data to reproduce the object, resulting in a low signal to noise (S/N) ratio. We relaxes this limitation by using sequencing frame/field images as moving pictures. First, 3D-data of the display object are decomposed into several parts, and each part is sampled as a set of point light sources. The computed holographic fringe patterns are displayed on different frames. These frames are displayed as a contiguous image sequence. If the frames are displayed continually at a high speed, human vision perceives them as a single object. This approach relaxes the strict dynamic range requirements for the display devices.
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  • A method of generating sequential perspective images for holographic stereogram synthesis
    K. Kinoshita
    Article type: Article
    Pages 23-28
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_23
    CONFERENCE PROCEEDINGS FREE ACCESS
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    To simplify tedious image input process in holographic stereogram (HS) synthesis, a new method based on a computer graphics technique was proposed for sequential perspective image generation. In this method, the images for HS synthesis were generated around a three-dimensional model which was constructed on the basis of information obtained from one or two photographs of a subject. The generated sequential perspective images of the subjects such as a building and a human body showed usefulness of the proposed method.
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  • Research for practical type electro-holography with LCD panels
    Koki SATO, Kunihiko TAKANO
    Article type: Article
    Pages 29-35
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_29
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Electro-holography is prospective as three-dimensional television technology. High resolution and large size LCD panels are required to construct 3D TV. But it is not practical. We are developing more practical electro-holography system which uses eye-lens type electro-holography and white light image reconstruction using commercially available LCD panels.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: August 28, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.43.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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