Information Technology Reference
In-Depth Information
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A person in CEBE can intuitively understand appearance and physical limi-
tations of ECAs, and he/she can convert their cultural behavior which ECAs
can reproduce.
The accuracy of measuring and reproducing behavior is depending on the situ-
ation.
3.2 Prototype
On the basis of necessary conditions for CEBE, we developed a prototype CEBE
which detects head direction, posture of the upper body, and 3D angles of arms,
and controls a head and arms of a robot or a virtual agent based on the detected
data. We currently implemented the methods to capture human behavior to
apply CEBE for using robots. We thus did not implement the methods to capture
gaze directions, facial expressions and hand gestures.
Fig. 1.
An architecture of prototype CEBE
Devices which we used in the prototype.
Figure 1 shows the whole image
of the prototype system.
The prototype system had an immersive display, which reproduces 360-degree
image around an ECA. The display intuitively provides an operator with sur-
roundings of the ECA. We expected, therefore, that the operator's cognitive load
to know the surroundings was reduced by using this display.
We used non-contact or small sensors to detect the operator's behavior in the
immersive display because the sensors would not prevent natural interaction.
Optical motion capture system is a typical non-contact sensor which can measure
