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Regarding sound and vibration, although the majority of users found that they added
to the appeal of the performance, many others did not feel that way. It is likely that the
sound volume was inadequate, and so was influenced by sound from the surroundings.
From question 5, we know that many users were able to view the image projected
on the other user's fog. On this occasion, no evaluation was carried out of the preci-
sion of the projected visual contents, but more than 75% of users gave an evaluation
that was “just about make it out” or better. So we can see that we have succeeded in
developing a multi-viewpoint fog screen.
5
Conclusion
Here, we have proposed method to develop a multi-viewpoint and portable fog screen
using AR markers and virtual space, and we have produced the HANASUI system
using that method. And we carried out an evaluation experiment using a question-
naire.
From the results, we have confirmed that many users were able to view the visual-
contents projected on another user's fog screen, and that they felt the visual contents
were in front of the fog screen-generating device they themselves were holding.
From the above points, we have confirmed that the method proposed here for con-
structing a multi-viewpoint and portable fog screen is viable. We have also confirmed
that many users find the HANASUI system developed using this method “beautiful”
and “magical.”
HANASUI was awarded the Maywa Denki Presidents Prize at IVRC 2013. Video
of the experience and from the user's viewpoint can be seen on YouTube [9].
References
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http://displair.com/
(accessed December 7, 2013)
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8.
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http://ivrc.net/2013/
(accessed July 10, 2014)
9.
Hanasui,
http://www.youtube.com/watch?v=_kLVEq-qVu4
(accessed De-
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