T. Sezaki, K. Akahane, M. Isshiki, and M. Sato (Japan)
Interface, Usability, Interaction, Haptic
In the field of 3D user interface devices, there is often a mismatch in VR space and device space. Rate control is one method of solving this problem, which works by trans lating device position into velocity of a pointer in the VR world. However, rate control is less intuitive to use than position control. One method for using position control is by introducing a manual clutching mechanism to address the mismatch between VR space and device space. In this paper, we introduce an automatic clutching method named thefi Dual Shell Method fi¡. This system changes clutch state according to grip position of an interface device. First, grip position in device space and the pointer in VR space are connected. In this state, the clutch is ON. When the user moves the grip outside of the device space, the clutch state turns OFF automatically. Then the grip and pointer are no longer connected. To turn the clutch state ON, the user is required move the grip to the center of the device space. Thefi Dual Shell Method fi¡ is more natural than manual clutching, because clutch state can be changed au tomatically, so user do not have to keep their attention on the device space. Results of the experiments conducted to assess the effectiveness of this system are presented.
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