VR Applications

Jyun-Ming ChenFall 1999

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]

Films on Medical Applications

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

Films on Aerospace APs

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

Review Questions

Propose your final project in class in the format demonstrated (15 min).Survey “visible human data set”What is dead-reckoning and how does it help reduce network load?Find another application of n-dimension data visualization.