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REALITY SHOW OR TRUSTABLE IMPOSTORS
REALITY SHOW OR TRUSTABLE IMPOSTORS
Outline
Outline
Research environment
Research environment
@ CEIT (1982-1995)
@ CEIT (1982-1995)
@ Univ
@ Univ
Research environment
Research environment
SKILLS research network
SKILLS research network
ENACTIVE research network
ENACTIVE research network
CEIT
CEIT
Labein
Labein
Recent activities
Recent activities
Let us go to the past :1986
Let us go to the past :1986
Outline
Outline
Reality show or trustable impostor
Reality show or trustable impostor
Applications
Applications
Applications : spreadsheets
Applications : spreadsheets
Applications & users
Applications & users
A personal experience : discovering customers
A personal experience : discovering customers
 (discovering customers)
(discovering customers)
REVIMA (developed at CEIT)
REVIMA (developed at CEIT)
Reality Show
Reality Show
Impostors lead the Wii to success
Impostors lead the Wii to success
Impostors : replacement restrictions
Impostors : replacement restrictions
Trustable Impostors everywhere
Trustable Impostors everywhere
 ( Trustable Impostors everywhere )
( Trustable Impostors everywhere )
Interface Contract for haptic systems
Interface Contract for haptic systems
90s Great Expectations : 3D Visualization
90s Great Expectations : 3D Visualization
Great expectations : consumer haptics
Great expectations : consumer haptics
Great expectations : networked haptics
Great expectations : networked haptics
Reality show AND trustable impostors
Reality show AND trustable impostors
Outline
Outline
Recent activities
Recent activities
(1) @ CEIT - Simulation group
(1) @ CEIT - Simulation group
Multidisciplinar group on haptics
Multidisciplinar group on haptics
Occlusion culling : environment
Occlusion culling : environment
Occlusion culling : learnt experiences
Occlusion culling : learnt experiences
Occlusion culling : learnt experiences
Occlusion culling : learnt experiences
(2) @ Labein
(2) @ Labein
Learnt experiences
Learnt experiences
Current research : motion prediction
Current research : motion prediction
(3) @ CEIT
(3) @ CEIT
Your input & discussion
Your input & discussion
Research background
Research background
Labein
Labein

: REALITY SHOW OR TRUSTABLE IMPOSTORS. : Rosa Iglesias. : REALITY SHOW OR TRUSTABLE IMPOSTORS.ppt. zip-: 2409 .

REALITY SHOW OR TRUSTABLE IMPOSTORS

REALITY SHOW OR TRUSTABLE IMPOSTORS.ppt
1 REALITY SHOW OR TRUSTABLE IMPOSTORS

REALITY SHOW OR TRUSTABLE IMPOSTORS

Alex Garcia-Alonso University of the Basque Country

2 Outline

Outline

Research environment Reality show or trustable impostor Recent research activities Your input & discussion

Chapel Hill, Oct. 23rd

3 Research environment

Research environment

Basque Country 4 Universities (90,000 students) 12 Tech research centers (2,200 labor force)

Chapel Hill, Oct. 23rd

4 @ CEIT (1982-1995)

@ CEIT (1982-1995)

Technological Research Center App. Mechanics Dpt. : comp. graphics FEM : pre- post-processing Interactive 3D visualization Mechanisms analysis Dynamics Collision analysis (RT mechanisms) Working for different companies European Space Agency MDI (Mechanical Dynamics Inc, Ann Arbor MI) EADS

Chapel Hill, Oct. 23rd

5 @ Univ

@ Univ

of the Basque Country (1996- )

Teaching !!! Technological Research centers CEIT (258 Labor staff) University of Navarre Ikerlan (230 Labor staff) MCC Cooperative group 250 companies -- 83,600 labor force 44% Basque Country 37% Spain 19% international Labein (356 Labor staff) Vicomtech EUVE Spin-offs +VR

www.landersimulation.com

www.simtechniques.com

Chapel Hill, Oct. 23rd

6 Research environment

Research environment

U. of the Basque Country U. of Navarre CEIT Vicomtech

U. of Deusto Labein

100 miles diameter

MCC Ikerlan U. of Mondragon

EUVE

Bilbao

San Sebastian

Mondragon

Vitoria

Chapel Hill, Oct. 23rd

7 SKILLS research network

SKILLS research network

Multimodal Interfaces for capturing and Transfer of Skill

CEIT Labein Aalborg University Commissariat ? l'Energie Atomique - Laboratoire d'Int?gration des Syst?mes et des Technologies (CEA LIST) DLR - Institute of Robotics and Mechatronics Fraunhofer Institut f?r Graphische Datenverarbeitung HAPTION KUKA Roboter GmbH OMG plc PERCRO, - Italy [coordinator] Queen's University of Belfast Simonazzi S.p.A. Technion - Israel Institute of Technology UM1 - University Montpellier-1 University of Tampere

Chapel Hill, Oct. 23rd

8 ENACTIVE research network

ENACTIVE research network

Max-Planck Gesellschaft zur Foerderung der Wiss. E.V. Universit? de Gen?ve Ecole Polytech. Fed. Lausanne Universit? Degli Studi Di Padova Sony France Ecole des Hautes Etudes en Sciences Sociales Assoc pour la Cr?ation et la Recherche Outils d'Expression Centre National de la Recherche Scientifique Universit? Montpellier-1

Learn by doing

Labein CEIT Scuola Superiore Sant'anna, PERCRO Queen's University of Belfast Institut National Polytechnique de Grenoble University of Exeter Lunds Universitet Universit? Technologique de Compi?gne Uppsala Universitet Institute of Robotik und Mechatronik Hasselt University Faculty of Music, McGill Univ. University of Minnesota

Chapel Hill, Oct. 23rd

9 CEIT

CEIT

Chapel Hill, Oct. 23rd

10 Labein

Labein

Chapel Hill, Oct. 23rd

11 Recent activities

Recent activities

P2P visualization & NURBS (2000-02, U. Basque Country) Collisions in mech. Assembly (2001-05, CEIT) Occlusion culling (2003-07, CEIT) Improving haptic perception (2006---, CEIT) Collaborative haptics (04-07, Labein) Avatars (04---, Vicomtech) Learning Procedural Skills : link IA & VR (07---, U. Basque Country - U. Navarre)

Chapel Hill, Oct. 23rd

12 Let us go to the past :1986

Let us go to the past :1986

Chapel Hill, Oct. 23rd

13 Outline

Outline

Research environment Reality show or trustable impostor Recent research activities Your input & discussion

Chapel Hill, Oct. 23rd

14 Reality show or trustable impostor

Reality show or trustable impostor

Applications Users, costumers Reality show ? Impostors : interface contract Trustable impostors everywhere Great Expectations Consumer haptics Networked haptics Summing up

Chapel Hill, Oct. 23rd

15 Applications

Applications

Research Physic based research Application oriented research Physics and Maths are the basis of research Science must also appreciate Applications : Appraise applied science and engineering ! Steer knowledge to a good application !

Chapel Hill, Oct. 23rd

16 Applications : spreadsheets

Applications : spreadsheets

David Alan Grier (1979) This machine has everything you can find on a real mainframe: multiprocessing, report generators, Cobol. If it were only a small mainframe, there would be no reason to get it, because it is as slow as bad plumbing. However, it has one piece of software. This, my friend, is a spreadsheet and it is going to change the world. Without spreadsheets, these machines are nothing. With spreadsheets, they are unstoppable. (source, Computer, sept 2007, pg 6)

Chapel Hill, Oct. 23rd

17 Applications & users

Applications & users

Windows interface metaphor Xerox Apple Users Apps target user domains of different size Specific domains (training, simulation, modeling, ) Broad domains (Consumer oriented : games, desktop I/F, co-presence, ) Always pleased users are the key for successful applications

Chapel Hill, Oct. 23rd

18 A personal experience : discovering customers

A personal experience : discovering customers

A sad story : ADAMS/Real -Time Kinematics 1994 : 3 weeks from CEIT to MDI Jeff Cooper (MDI, Mechanical Dynamics Inc, Ann Arbor MI) The happy one : ADAMS/Animation I learnt a new point of view : customers (users) 2-3 K licenses

Chapel Hill, Oct. 23rd

19  (discovering customers)

(discovering customers)

Both applications (products) were : Easy of use Quite good cost / performance ratio So, why this success difference? ADAMS/Animation conquered users expectations

Chapel Hill, Oct. 23rd

20 REVIMA (developed at CEIT)

REVIMA (developed at CEIT)

2000-04 Collaboration with CEIT Installed & used successfully However, it did not replace the space mouse (haptic competitor) ? desk is more comfortable IEEE Computer Graphics & Applications Dec. 2004 Minority Report Steven Spielberg 2002 film

www.donnarosenartists.com artist Dale Rutter

www.ceit.es

Chapel Hill, Oct. 23rd

21 Reality Show

Reality Show

Is the realism of visual or haptic rendering the key for success ? Who generates the most realistic images ? Sonys Playstation 3 ? Microsofts Xbox 360 ? Nintendo?s Wii ? clearly, doesnt So, why did the Wii succeed ? .. Why do users enjoy more the Wii ? The Wii conquered users unconscious wishes How ?

Chapel Hill, Oct. 23rd

22 Impostors lead the Wii to success

Impostors lead the Wii to success

Does the Wii replicates reality ? Games for the Wii : Trustable Impostors An impostor replaces something Replaces a real : golf club, baseball bat, bowling ball, racket Users trust (accept) their behavior

Chapel Hill, Oct. 23rd

23 Impostors : replacement restrictions

Impostors : replacement restrictions

Insertar FOTO juego real

There is not an absolute replacement Impostors can be used to achieve some goals They do not replace playing grounds These are not flaws, they are an Interface Contract Impostors are accepted as they are, because they fulfill users' expectations

Chapel Hill, Oct. 23rd

24 Trustable Impostors everywhere

Trustable Impostors everywhere

Real time Computer Graphics: Fluid flows Cloth Faked shadows and reflections Herd motion Lighting Vegetation Simulation Gravity used to fake acceleration

Chapel Hill, Oct. 23rd

25  ( Trustable Impostors everywhere )

( Trustable Impostors everywhere )

Haptic systems Deformable environments : body tissue Comfortable inspection Pseudo-haptics Impostors everywhere : Models substitute (real) entities Algorithms substitute physical laws Mathematical formulations Heuristics

Chapel Hill, Oct. 23rd

26 Interface Contract for haptic systems

Interface Contract for haptic systems

Impostors are conditioned by hardware specifications, models and algorithms. Stiffness (mechanical apps) Force limits (weight, tighten, push, ...) Position precision Haptic systems require interface contract Conditions of use (usability domain) ?? analyses must be performed !!! Perception Skills achievement

Chapel Hill, Oct. 23rd

27 90s Great Expectations : 3D Visualization

90s Great Expectations : 3D Visualization

1991 : Jim Clark (Silicon Graphics) He also made some interesting predictions for the low end. He described the multimedia machine of the future as a device integrating the capabilities of (1) full 3D, interactive, real-time computer graphics, (2) full motion video, (3) image processing capabilities, (4) fully integrated geometric text, and (5) full compact-disc digital sound. He predicts that this will be available in a portable notebook-sized device with motion sensors in the next five to ten years for under $5,000. (Source: Neville Holmes, Computer, sept 2007, pg 11)

Chapel Hill, Oct. 23rd

28 Great expectations : consumer haptics

Great expectations : consumer haptics

A haptic device as spread and affordable as the Wii or the GPU ? 3 dof seems available 6 dof and multipoint devices are further away Which performance ? Usability domain Which user expectations will they be able to fulfill ? ? Which applications should be developed ?

Chapel Hill, Oct. 23rd

29 Great expectations : networked haptics

Great expectations : networked haptics

Feb. 2007 : Sipping beers with Jarek Rossignac Q- collaborative haptics ? Thats OK. But which is its use ? A- Mechanical assembly (Jarek : skeptical glance) A- feel mutual contact (Jarek : keen glance) Co-presence awareness Toast, handshake, Mutual contact Feel physical presence in the collaborative working environment

Chapel Hill, Oct. 23rd

30 Reality show AND trustable impostors

Reality show AND trustable impostors

We must discover unconscious users expectations And fulfill them Reality must be defined by an Interface contract Users must trust (accept) app. behavior ? Conditions of use must be well specified ? Perform more perception and skills achievement analyses Cheap haptic devices make possible new challenges May new haptic based metaphors replace the desktop ? Can haptic devices outperform the mouse ? Which I/F mechanisms can increase co-presence awareness ?

Chapel Hill, Oct. 23rd

31 Outline

Outline

Research environment Reality show or trustable impostor Recent research activities Your input & discussion

Chapel Hill, Oct. 23rd

32 Recent activities

Recent activities

P2P visualization & NURBS (2000-02, U. Basque C.) Intell. tutors + 3D visualization (00-05, U. Basque C.) Collisions in mech. Assembly (00-04, CEIT) (1) Occlusion culling (03-07, CEIT) (2) Collaborative haptics (04---, Labein) Avatars (04---, Vicomtech) (3) Improving haptic perception (06---, CEIT) IA & VR : Learning Procedural Skills (06---, U. Basque C. - U. Navarre)

Chapel Hill, Oct. 23rd

33 (1) @ CEIT - Simulation group

(1) @ CEIT - Simulation group

Length 5.0 feet (1.5 m) Radius 2.6 feet (0.8 m) ITP supplies turbines to Rolls-Royce

Chapel Hill, Oct. 23rd

34 Multidisciplinar group on haptics

Multidisciplinar group on haptics

Haptic design & building

2007 : IEEE Int. Conf. on Robotics and Automation

2004 : Comp Graphics Forum

2008 : IEEE Trans. on Control Systems Technology

2004 : IEEE Comp Graph & APP

2008 : Computer Animation and Virtual Worlds

Chapel Hill, Oct. 23rd

35 Occlusion culling : environment

Occlusion culling : environment

Virtual environment Many objects Objects not far from eye Low occlusion Cannot use Conventional LOD Background texture replac. ? Improve occ. cull.

Chapel Hill, Oct. 23rd

36 Occlusion culling : learnt experiences

Occlusion culling : learnt experiences

Many coherence mechanisms analyzed Using most of them Surprisingly stereo (eye2eye) coherence did not improve performance why ? Low occ. scenes 40% Speed ups achieved OC as a LOD mechanism ?

Chapel Hill, Oct. 23rd

37 Occlusion culling : learnt experiences

Occlusion culling : learnt experiences

OC as a LOD mechanism image relevance Occlusion ratio : visible pixels / projected pixels A new GPU query is required GPU can be easily extended

Occlusion Ratio scheme if ( Occlusion_Ratio < threshold & visible pixels < 0.15% drawing area ) then draw simplified object else draw object normally

Chapel Hill, Oct. 23rd

38 (2) @ Labein

(2) @ Labein

Collaborative Assembly Simulator Labein (Spain) & Queens University Belfast

Chapel Hill, Oct. 23rd

HAVE2007 , Ottawa, Oct. 13-14

39 Learnt experiences

Learnt experiences

Collaborative haptics (each user holds one object) [ Collaborative ? Cooperative two users hold the same object ] Independent interaction ? similar to visualization Dependent interaction Collisions ? co-presence Assembly : constraints, network ? haptic response Experiments : Labein - Queens U. Belfast P2P & Scalability

Chapel Hill, Oct. 23rd

40 Current research : motion prediction

Current research : motion prediction

Local haptic (not networked) 5 years ago : 40ms/frame coll. computing Where will be the object when the collision computations are done ? Free movement vs. contact movement instabilities ? ? stiffness dependent ? Currently 2-3ms. ? no relevant Collaborative haptics (50-200ms delays) promising

Chapel Hill, Oct. 23rd

41 (3) @ CEIT

(3) @ CEIT

Improving haptic perception Surface discontinuities (edges, holes, thin elements, ) ? oscillations Surface normal Penetration Contact point

Chapel Hill, Oct. 23rd

42 Your input & discussion

Your input & discussion

Thanks for your attention Muchas gracias Eskerrik asko (Basque language)

Donostia Saint Sebastian

Chapel Hill, Oct. 23rd

43 Research background

Research background

Networked visualization 1988-89 ? European Space Agency : LAN TCP 1993-96 ? EADS : ATM - UDP 1999-01 ? Basque Gov : internet - P2P Haptic systems 2000-07 ? CEIT Networked haptic systems 2004-07 ? Labein, MIT, Queens U. Belfast

Chapel Hill, Oct. 23rd

44 Labein

Labein

Dr. Rosa Iglesias, Ph D. Dec 2006 Labein (2001-06) Ikerlan (2007-)

Chapel Hill, Oct. 23rd

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