vr applications jyun-ming chen fall 1999. application domains medicine rehabilitation entertainment...
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Application Domains
medicinerehabilitationentertainmentmilitarybusinessroboticsmanufacturing...
anatomy trainersurgical simulatorwheelchair-VRtalking glovechemical designflight simulatorbattle traininginterior designtele-operation
Anatomy Trainer
... the medical knowledge has improved a lot, but the teaching methods haven’t changed much...http://www.avrs.com/~antares/antares/cadaver.html
[visible human project]
Military & Aerospace
Simulation & trainingIncreased technological complexityremote/team simulation require flexible, upgradable, networkable techn
ologyTypical applications troop training battle preparation mission debriefing new weapon preparation
SIMNET tank trainer network
Motivation DARPA projects reduce training cost increased safety reduce environmental i
mpactDetails
partially immersive M1 tank, with navigation, weapons, sensors, displays
resident computer keeps a copy of battle field trees, roads, buildin
gs,... communication:
intercom; voice/electronic msgs
dead reckoning to minimize network traffic
SIMNET
trainee practiced enemy force 3 times their size
SAFOR (semi-automatic forces) enemy forces act
as intelligent move in pre-
programmed formation
stealth vehicle observer on the
battle can recreate the
real battle; use the data for subsequent training
ASW antisubmarine warfare
Motivation radar display produce o
perator overload create new displays tha
t are more natural to understand
3D ASW system stereo, hi-res HMD + 3D
Sound gesture+ voice controlle
d
Virtual Stinger Trainer
plastic mock-up stinger3D mouse to track pos/orient of launchersimulate
weapon firing sequence, missile flight characteristics, target behavior
keep track of hit/miss ratio
Astronaut Training
Motivation zero gravity activity
is complex & challenging
object manipulation is unpredictable
under water buoyancy, but with
water friction airplane step
descent short periods of time
Work space shuttle extravehic
ular activity Hubble space telescope
repair & maintenance trainee sits on sensorize
d chair HMD (telescope, shuttle,
sky) data glove to grab instr
uments thruster control
Virtual Cockpit
Motivation with modern
weapons, displays, avionics, pilots suffer from sensorial overload
use VR to study the best man-machine interface
Design Issues network pilot state monitor voice command display quality
(texture mapping) mission
management tactile feedback
using see-thru display with real control panels
Business
advertising: VR promotion: “leading-edge” products
office building walkthroughfinance: data displayteleconferencinglitigation realistic reconstruction of scene
n-Vision
interactive & immersive visualization of n-dimensional data
nested Cartesian coordinate systemf(x1, x2, x3, x4, x5)
with origin at (x3, x4, x5) construct f(x1, x2, [x3, x4, x5 ])
currency exchange f(price, time, foreign interest
rate, ...)
HMD + Data glove grab inner graph within
outer C.S.
Interior Design (I)
Besides walkthroughlighting design radiosity quantitative results (l
ux) Lightscape
Interior Design (II)
air conditioning modeling visualize airflow to
ensure that air-velocity and temperature standards are met
Using Division distributed
computingLiving Environment System Lab
(Matsushita)
Roboticsmechanical arm with great versatilitycan be self-adapting; react to changes of the environmenttwo types: industrial (structured
environment) service (unstructured;
under human control)
VR applications off-line
programming realistic modeling
of robot & environment
test on virtual robot then download to real robots
Tele-operation
Tele-operation
human in the control loopshield operator from dangerous environmenthistorically precedes VR; but VR can help operator training information of on-
line control
synthetic imaging to aid visualization real image may be
corrupted (steam, smoke, insufficient lighting
move-and-wait: phantom robot provides a visual cue
Product Design
traditional CAD: geometry aspectswith VR life cycle
concerns: safety, ergonomics, maintenance, assembly
reduce the number of full-size prototypes
Other Manufacturing
Product servicing superimpose
textual and graphical info over the image of serviced product
also used in training
Plant Design use VR to help the
positioning of equipment on the plant floor for best production component flow