Information Technology Reference
In-Depth Information
The range of projection
and photographing
1.8m
The territory of
performance
0.3m
1.1m
0.7m
0.4m
(b)
0.4m
Cameras
0.15m
Projector
Fig. 3.
a) Configuration of HANASUI b) Territory of performance
At the time of this study, the geometrical alignment of the real and virtual spaces
was not automated. A hexagonal prism was arranged in both the real and virtual spac-
es; the prism was filmed by the virtual cameras; these images were projected; and the
projectors were manually moved and adjusted until the projected prism aligned with
the actual prism.
3
Implementation of HANASUI
In the section, we cover the implementation of HANASUI, the system through which
we developed our purposed multi-user and portable fogscreen. The configuration of
the HANASUI system is illustrated in figure 2, and the system as whole is illustrated
in figure 3.
HANASUI is made up of a performance stage and a handheld device (the handheld
fireworks device figure 4).
The user experiences the HANASUI by holding out the device above the central
area of the performance stage.
3.1
Performance Stage
The performance stage is in a darkroom 1.8m high and 1.8m square, and a platform
with a 1.1m-square hollow center is located approximately 15cm above the floor.
Below the platform three short focus projectors (Casio XJ-ST155 1024x768) are ar-
ranged at approximately 60-degree intervals, facing the center of the hollow. On the
floor of the hollow space, facing directly upwards, are an infrared floodlight (WTW-
F6085) and two infrared cameras (Logicool HD Pro WebCam C910 1920x1080).
In addition, the modularized infrared floodlight and infrared camera is referred to
as a marker detection module.
