slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Marc Parenthoën, Jacques Tisseau, Thierry Morineau PowerPoint Presentation
Download Presentation
Marc Parenthoën, Jacques Tisseau, Thierry Morineau

Loading in 2 Seconds...

play fullscreen
1 / 20

Marc Parenthoën, Jacques Tisseau, Thierry Morineau - PowerPoint PPT Presentation


  • 354 Views
  • Uploaded on

Laboratory of Software Ingeneering Li2, EA 2215 UBO/ENIB, BREST, FRANCE Research Group in Informatics and Cognition GRESICO, UBS/IUP, VANNES, FRANCE Autonomy and Proactive Perception for Virtual Actors Marc Parenthoën, Jacques Tisseau, Thierry Morineau virus autonomy 1

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Marc Parenthoën, Jacques Tisseau, Thierry Morineau


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Laboratory of Software Ingeneering

Li2, EA 2215 UBO/ENIB, BREST, FRANCE

Research Group in Informatics and Cognition

GRESICO, UBS/IUP, VANNES, FRANCE

Autonomy and Proactive

Perception for Virtual Actors

Marc Parenthoën,

Jacques Tisseau,

Thierry Morineau

slide2

virus

autonomy

1

virtual reality

virtual theatre

video-game

interactive fiction

3D-movie

interaction

immersion

0

1

flight simulator

1

VR : History

in virtuo

presence

slide3

Plan

  • Autonomy by Conviction

Principle of autonomy for behovioral model

  • Affordance-Based FCM

Behavior specification and control

  • Virtual Proactive Perception

Simulation, active perception and prediction

  • Implementation of a Virtual Skipper
slide4

sense

action

real time

interactive

language

on line

Exploitation of Models

what IS

the model

what does

the model DO

Animation

Simulation

Model

Modelling

What BECOMES of the model

slide5

interactivity

on line modelling

language

2

interactive simulation

action

1

real time animation

sense

0

slave/master

master/slave

model

model

model

equal/equal

avatar

Numerical Simulation

Interactive Simulation

Participative Simulation

User Status

cre-actor

actor

spectator

slide6

Towards Intrinsic Autonomous Models

Deficiencies

  • sensorial
  • motor
  • mental

Abilities

  • of perception
  • of action
  • of decision

Autonomy

  • of execution

loss of autonomy

slide7

perception

decision

action

Multi-Agent Systems

Numerical model

  • descriptive
  • causal
  • behavioral
slide8

model

model

avatar

avatar

A

E

I

O

U

Participative Multi-Agent Systems

VOWELS

  • Agent
  • Environment
  • Interaction
  • Organisation

“extended” VOWELS

  • User
slide9

+

close

enemy

+

+

wishto

escape

fear

far

enemy

-

+

-

sensors

perceptions

AGENT

FCM

fuzzyfication

defuzzyfication

effectors

actions

Behavioral Modelling

FCMs [Kosko86]

  • specify
  • control
  • model perception

Dynamics

Decision

slide10

Plan

  • Autonomy by Conviction
  • Affordance-Based FCM
  • Virtual Proactive Perception
  • Implementation of a Virtual Skipper
slide11

Psychological Model of Activity

Affordances [Gibson77]

  • environment-tool-agent

attractive or repulsive effect

  • absolute value

sensation=Fuzzyfication(sensors)

  • relative value

accessibility level (perceptual/motor)

  • selection via FCM

perception=Dynamics(FCM)

slide12

Affordance-Based FCM Construction

  • concepts=affordances

given by expert

  • extern activation=absolute value

virtual sensors + fuzzy rules

  • selection via FCM

perception=dynamics(FCM)

  • strategy of trajectory

associated with selected affordance

slide13

Plan

  • Autonomy by Conviction
  • Affordance-Based FCM
  • Virtual Proactive Perception
  • Implementation of a Virtual Skipper
slide14

inner maps operations

input switch

output switch

}

projective

effector command

sensorimotor inputs

}

operators on state variables

comparison

real/simulated

behavior

modification

conservative

Active Perception[Berthoz 88]

slide15

sensors

simulation and adaptation

FCM selects

affordance

projection

sensors

LF

selection

FCM learns

affordances

comparison/

anticipation

hebb

comparison/

anticipation

HF

HF

sequence

of postures

modification

sequence

of postures

effectors

effectors

Virtual Proactive Perception

active perception, anticipation, simulation and learning

simulation in the simulation

slide16

Plan

  • Autonomy by Conviction
  • Affordance-Based FCM
  • Virtual Proactive Perception
  • Implementation of a Virtual Skipper
slide17

Gateway

Restart

-1

Gateway

VMG

-1

-1

Obstacle

Luff

-1

-1

-1

Obstacle

Jibe-Luff

-1

Landmark

Gyroscope

-1

-1

Landmark

Trim

-1

-1

-1

+1

-1

-1

Specific

Surf

+1

Specific

No Surf

Affordance-Based FCMs Construction

slide18

Human and Virtual Helmsmans

  • associated to each affordance,
  • part of strategy
slide19

CERV

European Center of Virtual Reality(CERV)

… Brest, september 2003

slide20

Laboratory of Software Ingeneering

Li2, EA 2215 UBO/ENIB, BREST, FRANCE

Research Group in Informatics and Cognition

GRESICO, UBS/IUP, VANNES, FRANCE

Autonomy and Proactive

Perception for Virtual Actors

Marc Parenthoën,

Jacques Tisseau,

Thierry Morineau