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UT Dallas researchers pushing the boundaries of virtual reality
Date:2/5/2013

UT Dallas researchers are extending the borders of virtual reality, going beyond virtual spaces in which people can see and hear each other to an environment that adds the sense of touch.

The technology would make it possible for physical therapists, for example, to work with patients in other locations. When a patient pushes down on a device, a doctor's device in another location would also move down with the same force, as if the patient were physically pressing the doctor's hand.

Professors in the Erik Jonsson School of Engineering and Computer Science are creating a multimedia system that uses multiple 3-D cameras to create avatars of humans in two different places, and then puts them in the same virtual space where they can interact.

In traditional telemedicine, a doctor and patient both appear on the same screen and are able to talk, but they are not in the same physical space.

"With in-home rehabilitation, doctors ask a patient if he or she has done their exercises, but the patient may not be doing them correctly," said Dr. Balakrishnan "Prabha" Prabhakaran, professor of computer science at UT Dallas and a principal investigator of a $2.4 million project funded by the National Science Foundation to create the system.

"It is one thing for a patient to say he or she did their exercises, but it is another to watch them in action, feel the force exerted, be able to correct them on the spot and get immediate response."

With large amounts of data, such as tracking images or movement, there could be significant lag time or delays in transmission. The grant funds creation of the algorithms and software needed to transmit the data through the internet in real time. There are four major areas of this system under research by experts in the Jonsson School.

Haptic Devices

Haptic devices are pieces of equipment with resistance motors that apply force, vibration or motion to the user to pr
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Contact: LaKisha Ladson
lakisha.ladson@UTDallas.edu
972-883-4183
University of Texas at Dallas
Source:Eurekalert

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