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- 90-11/NASA.VIEW
- From: rick@eos.arc.nasa.gov (Rick Jacoby)
- Subject: More Virtual Reality work at NASA Ames
- Date: 26 Nov 90 22:49:21 GMT
- Organization: NASA Ames Research Center, Calif.
-
- Another lurker responds.
-
- I work in the VIEW (Virtual Interactive Environment Workstaton) lab at
- NASA Ames Research Center. The VIVED project was started in 1984 by Mike
- McGreevy, and the VIEW project was an off-shoot of VIVED. When I joined
- the project in 1987, Scott Fisher was running the VIEW project. Some of the
- hardware development, and almost all of the software development and systems
- integration have been done by Sterling Software, a contractor to NASA Ames.
-
- Under Scott Fisher's direction, the VIEW project developed a
- general-purpose, multi-sensory, personal simulator and telepresence device.
- The initial operating configuration was completed last spring and it
- included head and hand tracking (Polhemus), wide field-of-view stereo
- head-mounted displays (LEEP Optics & monochrome LCDs), 3-D audio output
- (Crystal Rivers Convolvotron), glove for gesture recognition (VPL DataGlove),
- a boom-mounted CRT display (Sterling Software), and a remote camera platform
- (Fake Space).
-
- Some of the initial scenarios developed for VIEW were the teleoperation
- of a (virtual) puma arm robot, an astronaut EVA scenario, a virtual
- theramin, and fluid flow visualization.
-
- The lab's current direction is to focus on a few specific research issues.
- One project is to connect the VIEW environment to a real Puma arm and study
- the effect of improved force-torque displays on teleoperations. Another
- project, perhaps the most interesting to VR enthusiasts, is a joint study
- between the VIEW lab and the computational fluid dynamics group at Ames.
- The project will study human interaction with various virtual control devices.
- A third project simply uses the VIEW environment as a simulator to study the
- amount of fuel that would be used by a 'lost' astronaut trying to fly back to
- the space station.
-
- Our host computer is an HP 9000/835 and the graphics can be processed
- on either a Canadian-made graphics computer (ISG Technologies) or the
- HP's SRX graphics boxes. We have an 18-page Macintosh document which
- is an overview of our hardware sub-systems and software conventions and
- paradigms. I will e-mail a text-only version of this document to readers
- who e-mail me a request for it before the end of January.
-
- The VIEW lab is currently under an umbrella group called the Spatial
- Displays and Instruments Labs. Two other labs in this group are Spatial
- Audio Display lab and Virtual Planetary Exploration (VPE) lab. The Audio lab,
- run by Beth Wenzel, is developing digital signal-processing techniques and
- the technology platform required for three-dimensional auditory displays.
- The work is based on psychoacoustic principles of auditory localization and
- there is ongoing supporting research aimed at perceptually validating and
- improving the display. The realtime hardware, called the Convolvotron, was
- developed with Scott Foster of Crystal River Engineering.
-
- The VPE lab, run by Mike McGreevy, is investigating ways to help
- planetary geologists remotely analyze the surface of a planet. They are
- applying virtual reality techniques to "virtually explore" planetary
- terrains. Their host computer is a Stardent GS2000, and they are using
- VPL Eyephones. Their data are height fields derived from Viking images
- of Mars, and a typical scene will contain tens of thousands of polygons.
-
- Rick Jacoby rick@eos.arc.nasa.gov
- Sterling Software NASA Ames Research Center
-