The Journal of The Institute of Image Information and Television Engineers
Online ISSN : 1881-6908
Print ISSN : 1342-6907
ISSN-L : 1342-6907
Volume 65, Issue 2
Displaying 1-24 of 24 articles from this issue
Special Edition
Digital Signage
Technical Survey
Technical Guide
3D that Everyone Understands(2)
Keywords you should know(61)
Activity Notes on Standardization(11)
My Recommendations on Research and Development Tools(44)
Production Notes on Broadcast Program(11)
Journey into Media Arts(11)
Research Laboratory of Venture
Report on Inter BEE 2010
  • Daisuke Isayama, Ryo Taguchi, Taizo Umezaki, Masahiro Hoguro
    2011 Volume 65 Issue 2 Pages 211-217
    Published: February 01, 2011
    Released on J-STAGE: May 01, 2011
    We describe an unbeatable rock-scissors-paper (janken) game system which defeats the opponent without fail and never has any delay in the presentation of the hand. This system recognizes the shape of the opponent's hand with pictures taken by a 60-fps camera and displays the hand form that can win a game on the screen before the opponent completes their hand form. When a 60-fps camera used, the whole process, which includes image acquisition, preprocessing the image, recognition of the hand shape and a display of the winning hand form, is done within about 16 msec. The optimal display time is decided on the basis of experience, recognition of the hand form and the time needed to present one of the three symbols without giving the opponent, who has average reactions a feeling of delay.
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  • Asako Soga, Masahito Shiba, Jonah Salz
    2011 Volume 65 Issue 2 Pages 218-223
    Published: February 01, 2011
    Released on J-STAGE: May 01, 2011
    Recently many live performances have featured the use of information technologies, for example, projecting visual images. We created a new Noh-style stage performance based on traditional forms combined with a modern arrangement using information technologies. In the performance, we had virtual actors presented by CG animation act on the Noh stage. We used human motion data obtained by a motion capture system to create the movements of the virtual actors and had them act with the real actors. We describe the method of projection in a traditional Noh theater, the creation of virtual actors using 3D-motion data, and the method of controlling virtual actors.
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  • Muneharu Kuwata, Tomohiro Sasagawa, Kuniko Kojima, Atsushi Michimori, ...
    2011 Volume 65 Issue 2 Pages 224-228
    Published: February 01, 2011
    Released on J-STAGE: May 01, 2011
    The laser display can be a very high quality one because of its excellent properties such as a wide color gamut and low power consumption. It is essential, however, to reduce the speckle related to the essence of lasers. We describe the principle and the basic experimental results of a method to reduce speckle in laser displays with a moving screen system. The relationship among the screen gain, radius of screen rotation, linear velocity and speckle was quantitatively evaluated and it reduced speckle on laser projection displays.
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  • Haruhisa Kato, Akio Yoneyama, Sei Naito, Shigeyuki Sakazawa, Shuichi M ...
    2011 Volume 65 Issue 2 Pages 229-234
    Published: February 01, 2011
    Released on J-STAGE: May 01, 2011
    A novel coding method that reduces the correlation of 4:4:4 chroma format in a high resolution image more so than HDTV is proposed. The proposed method transforms intra prediction errors to a frequency domain by applying adaptive basis functions that are derived from the error in a specific channel by using singular value decomposition. Experimental results show that applying the adaptive basis function to intra prediction errors is superior in coding efficiency to the conventional method.
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