STEREOGRAPHICS CRYSTALEYES USED IN UNDERWATER ROV PROJECTS

Robotic Arm, Remotely Operated Vehicles (ROVs) Operators Wear CrystalEyes
Glasses to Give 3D Stereoscopic Depth and Simplify Complex Tasks

San Rafael, CA -- July 18, 1994 --StereoGraphics Corporation, the world's
largest supplier of three-dimensional electronic stereo display equipment,
is announcing that its CrystalEyes system is being used by Schilling
Robotics, Davis, Calif., and Perry Tritech, Jupiter, Florida, to provide
telepresence capabilities to operators of robotic arms and underwater
Remotely Operated Vehicles (ROVs).

CrystalEyes eyewear, a component of StereoGraphics' CrystalEyes
VideoSystem, gives the operators the depth perception they need to
remotely perform tasks which would be difficult or impossible without
depth perception, such as picking up objects with a robotic arm, or
steering an ROV in real-time through underwater locations.

The CrystalEyes VideoSystem generates stereo (true 3D) images and permits
long-range transmission of the video output from two cameras mounted on
the robotic arm or ROV. Operators can view the simulated objects or
environment on a computer workstation by using CrystalEyes VR --
interactive virtual reality -- eyewear. The images can also be
simultaneously projected in real-time stereo onto a large screen by using
the CrystalEyes Stereo Projection System which enables any number of
people to view projected computer images in true 3D stereo.

Wil Cochran, StereoGraphics vice president of sales and marketing, said,
'Without 3D stereo viewing, operators could not efficiently perform
complex tasks. This is a prime example of advancements in two modern
technologies, stereo vision and telepresence, dovetailing at the right
time to produce practical applications. In addition, telepresence enables
humans to safely
and productively work in hostile environments.'

Next to full-scale physical models, color stereo images give users the best
sense of spatial relationships because they show true size, shape and
location. The benefits of stereo viewing have been proven in every
application from mechanical CAD/CAE to virtual prototyping and
architectural walk-throughs. Using three-dimensional images reduces design
and development cycles, improves accuracy and makes complex concepts
easier to understand, manipulate and implement.

StereoGraphics equipment enables the operators to see stereo images of the
remote object or underwater environment through the CrystalEyes stereo
eyewear linked to its proprietary CrystalEyes VideoSystem. NASA uses
virtual reality to steer underwater ROVs with robotic capabilities through
simulated environments. This is done for mission planning, training and
dealing with communication time delays.

CrystalEyes VR includes six degrees of freedom using a head tracker. As the
user's head moves from side to side, up or down, closer to or further away
from the computer monitor, the image on the display changes its
perspective, giving the convincing illusion that the image is a real
object. The CrystalEyes VR System enables operators to steer the ROV
through a virtual reality simulation of underwater locations as if they
were actually there.

The CrystalEyes VideoSystem is a completely self-contained 3-D stereo video
system which uses standard video cameras and works with virtually all
video equipment worldwide. The system is especially designed for remote
precision manipulation, as in underwater operation, and in special
atmospheres. It is also used in hazardous material handling (i.e.
nuclear), and outer space.

StereoGraphics' patented CrystalEyes depth perception products utilize true
3D stereo to improve and dramatize viewing for a broad and diverse user
universe. CrystalEyes products provide high-resolution, realistic and
flicker-free stereo viewing for scientific visualization, animation,
medical imaging. surgical endoscopy, molecular modeling, computer games,
photogrammetry, location-based entertainment, motion simulation,
inspection systems, remote vehicle control, flight simulation, corporate
presentations and all types of education and training. The company markets
domestically through OEMs and resellers, and internationally through
distributors in Europe and the Far East, including Japan, Hong Kong and
Korea, as well as the rest of the world.

StereoGraphics Corp., founded in 1980, invented and developed the market
for modern stereo imaging hardware. Due to its capability, reasonable
price and state-of-the-art technology backed by 14 patents, CrystalEyes
systems are accepted as the industry standard for stereo viewing.
StereoGraphics is located at 2171 East Francisco Boulevard, San Rafael,
California 94901, phone 415/459-4500, fax 415/459-3020, email
stereo@well.sf.ca.us.

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