Getting a CAVE mentality

As far back as 1950,sci-fi author Ray Bradbury imagined a childrens nursery that could make bedtime stories disturbingly real. Star Trek fans might remember the holodeck as the virtual playground where the Enterprise crew relaxed in fantasy worlds.

The computer scientists have more serious matters in mind when they hand visitors 3D glasses and a controller called a wand. Scientists today share a common challenge: How to truly understand overwhelming amounts of data. Jason Leigh,co-inventor of the CAVE2 virtual reality system,believes this technology answers that challenge.

In the next five years,we anticipate using the CAVE to look at large-scale data to help scientists make sense of that information, Leigh said.

The CAVE2 virtual world could change the way doctors are trained and improve patient care,Leigh said. Pharmaceutical researchers could use it to model the way new drugs bind to proteins in the human body. Car designers could virtually drive their new vehicle designs.

Imagine turning massive amounts of datathe forces behind a hurricane,for exampleinto a simulation that a weather researcher could enlarge and explore from the inside. Architects could walk through their skyscrapers before they are built. Surgeons could rehearse a procedure.

But the size and expense of room-based virtual reality systems may prove insurmountable barriers,said Henry Fuchs,a computer science professor at the University of North Carolina at Chapel Hill,who is familiar with the CAVE technology but wasnt involved in its development.

While he calls the CAVE2 a national treasure,Fuchs predicts a smaller technology such as Googles Internet-connected eyeglasses will do more to revolutionise medicine than the CAVE. Still,he says large displays are the best way today for people to

interact and collaborate.

Believers include the people at Mechdyne Corp,which has licensed the CAVE2 technology for three years and plans to market it to hospitals,the military and in the oil and gas industry,said Kurt Hoffmeister of Mechdyne.

In Chicago,researchers and graduate students are creating virtual scenarios for testing in the CAVE2. The Mars flyover is created from real NASA data. The brain tour is based on the layout of blood vessels in a real patient.

Brain surgeon Ali Alaraj remembered the first time he viewed the brain using the CAVE2.

You can walk between the blood vessels, said the University of Illinois College of Medicine neurosurgeon. You can look at the arteries from below. You can look at the arteries from the side8230;. That was science fiction for me.

Would doctors process information faster with fewer errors using CAVE2? Thats the question behind a proposed study that would compare CAVE2 to conventional methods of detecting brain aneurysms and determining proper treatment,said Andreas Linninger,UIC professor of bioengineering,chemical engineering and computer science.

But its not all serious business at the lab. In his spare time,research assistant Arthur Nishimoto has been programming the CAVE2 computer with the specifications for the fictional Starship Enterprise. He now can walk around his life-size recreation of the TV spacecraft.

Its fantastic to come to work. Every day is like getting to live a science fiction dream, Leigh said. To do science in this kind of environment is absolutely amazing.