Project
TOUCH is a collaborative effort between the University of New
Mexico, The University of Hawaii, and the SimCen to apply advanced
technologies to medical learning. Project TOUCH uses Flatland, an
virtual reality visualization environment, to recreate medically
relevant scenarios for practice and training. Individuals explore
and interact with the virtual environment using a motion-tracked
head mounted display and joystick. Multiple systems can connect via
the Internet and share the same virtual space. In this manner, geographically
dispersed individuals can still come together for team training exercises.
Since
the head mounted display and joystick are tethered, the individual's
range of physical motion is limited. Alternative methods for going between
places in the virtual environment must be developed. A locomotion paradigm
is a method for moving around in the virtual environment. Locomotion
paradigms are typically designed to be easily understood or learned.
An important factor is evaluating the ease in which users can interact
and move around using different paradigms.
We
have ported software for the TOUCH/Flatland environment from Linux to
Windows. A series of experiments have been designed to evaluate different
locomotion paradigms. Each experiment requires the user to navigate a
series of waypoints in a simplified virtual environment. The intent is
to determine conditions under which one paradigm performs better (or worse)
than another. This work is currently ongoing.
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