• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Virtual Reality: Stereoscopic Imaging for Educational Institutions (Slides)
 

Virtual Reality: Stereoscopic Imaging for Educational Institutions (Slides)

on

  • 1,273 views

Virtual reality (VR) in education is a markedly present subject in research institutions in many countries. This paper will discuss the application of VR techniques, including the use of computer ...

Virtual reality (VR) in education is a markedly present subject in research institutions in many countries. This paper will discuss the application of VR techniques, including the use of computer graphics and three-dimensional (3D) video production. Stereoscopy is a key point for the visualization of these applications. The system developed uses a 3D lens, a home camera, common video edition software, two low cost projectors, light polarized filters and cheap 3D eyeglasses. During the 3D video production, the aim was to evaluate all the involved process, since the elaboration of scripts, video capture and projection until the costs to build the system. This is important to demonstrate for educational institutions the advantages in adopting resources of VR for the improvement of learning.
Artigo completo em: http://periodicos.ifsc.edu.br/index.php/rtc/article/view/108

Statistics

Views

Total Views
1,273
Views on SlideShare
1,270
Embed Views
3

Actions

Likes
0
Downloads
24
Comments
0

1 Embed 3

http://www.linkedin.com 3

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Virtual Reality: Stereoscopic Imaging for Educational Institutions (Slides) Virtual Reality: Stereoscopic Imaging for Educational Institutions (Slides) Presentation Transcript

    • ICBL2007 Conference
        • Antonio Amorim
        • [email_address]
        • Grupo de Sistemas Pervasivos e de Alto Desempenho - Laboratório de Sistemas Integráveis (LSI) – Universidade de São Paulo (USP) – São Paulo – SP – Brasil
        • Rodrigo Arnaut
        • [email_address]
        • Laboratório de Técnicas Inteligentes (LTI) – Universidade de São Paulo (USP) – São Paulo – SP – Brasil
      Virtual Reality: Stereoscopic Imaging for Educational Institutions
    • Virtual Reality: Stereoscopic Imaging for Educational Institutions AGENDA
      • Introduction
      • Virtual Reality (Overview)
        • Estereoscopy
        • Light Polarization Technic
        • Virtual Reality in Education
      • Eletronic Whiteboard and VRML
      • 3D Video
      • Conclusion
      • References
      • Low cost virtual reality systems construction
      • Eletronic Whiteboard with VRML application
      • 3D video production (Estereoscopy) for teaching
      Virtual Reality in Education INTRODUCTION “ No começo estranha, depois entranha!” Fernando Pessoa
      • Examples (real world): Transit Education, engineering, medicin, history: museum, churchs and laboratories of Simulation)
      • Examples (virtual enviroment): 3D games and enviroment reconstruction with graphics computation
      Virtual Reality in Education INTRODUCTION
      • Imersion, Interaction e Simulation Trinomy
      • HMD – Head Mounted Devices
      • Data Gloves,
      • joysticks,
      • Real size projections
      • Rooms mounted with com projection screens
      Virtual Reality in Education OVERVIEW
      • The HMD's are not so expensive, (US$1.000,00 a US$4.000,00)
      • But for 50 students, the amount are
      • A good cave maybe exceed US$ 1.000.000,00 (2004 prices)
      Virtual Reality in Education OVERVIEW
      • Technological advances and prices fall of:
        • processors, video cards and high capacity storage
        • LCD Projectors (reduced sizes, low power and bright enhancement)
        • Passive Technologies (Light Polarization)
          • Glass at U$ 3,00
      Virtual Reality in Education OVERVIEW
      • Costs from US$10.000,00 to US$60.000,00
      • Geowall Project
      • AnatomI 3D Project
      • VirtWall Project
      • Prodigy 3D Project
      Virtual Reality in Education OVERVIEW
      • 2 different images
        • one to left eye and other to right eye
        • a few different angle (paralax)
        • 2,5’’ or 6,5 cm
      • Technics: anaglifys, active stereo, Light Polarization (passive).
      Virtual Reality in Education STEREOSCOPY
      • 2 commons projectors
        • one to left eye images and other to right eye images
      • Light filters with opposite polarization
      • Each eye see only a correct image
      • Projection silver screen
      Virtual Reality in Education LIGHT POLARIZATION
    • 3D projection aparatus with light polarization Virtual Reality in Education LIGHT POLARIZATION
      • 2 projectors cost: US$ 1000,00
      • silver screen: US$ 50,00
      • polarization filters US$ 25,00
      • glass US$ 3,00
      • Suppose a minimal system to 50 users, we need 2 projectors, one screen, 2 filters, and 50 Glasses
        • Total amount of investiment: US$1.250,00 (2004 prices)
      Virtual Reality in Education LIGHT POLARIZATION
      • Several systems voltados para a Education
      • Cristine Youngblut produziu para o IDA [1]
        • report com mais de 70 Projects aplicando RV na Education
      • Specífic Public (children, high school students, adults, deficient students)
        • Didactic content (science, art)
        • Pedagogic Goals (improve the learning, reabilitation, development of real life habilities)
      • [1] IDA: Institute for Defense Analyzes
      Virtual Reality in Education EDUCATION
    • Exibition of a anatomic estructure using the VirtWall platform Virtual Reality in Education EDUCATION
      • 2 most utilized technologies
        • eletronic whiteboard (white board constructs on a sensitive surface, on that maybe or not to be projected a screen of a computer, that captures a eletronic pen motion)
        • Ultra-sonic device (fixed on a common white board transform it in a eletronic whiteboard) [Tori 2003].
      Virtual Reality in Education ELETRONIC WHITEBOARD
        • Prodigy 3D Project
        • Cietec / IPT / IPEN / USP
      Virtual Reality in Education ELETRONIC WHITEBOARD
      • to many research sources
      • Few detailed material
      • Almost all about tridimensional pictures
      • Few about 3D video
      • 3D video on market at "Low Cost“
        • US$ 15,00 to US$ 100,00
        • R$ 15,00 to R$ 55,00 at Brasil
        • Location/Sell on Internet
          • DVD Já – 11 titles (3D Glass included)
      Virtual Reality in Education 3D VIDEO
    • Virtual Reality in Education 3D VIDEO
      • Production: Transit Education
      • Case 1 – Estepe fácil (Easy spare wheel)
        • Public: newbies drivers
        • Duration: 3 minutes
        • Cost of Production/Edition: R$ 1200,00
      • Case 2 – Olhe pra frente (See on front)
        • Public:: Children “future drivers”
        • Duration: 2 minutes
        • Cost de Production/Edition: R$ 800,00
      Virtual Reality in Education 3D VIDEO
      • 15 minutes of 3D video production
        • 2 hours for elaborare the script
        • 4 to 6 hours for record
        • 3 hours de ediction
        • The recording cost is R$ 800,00
          • 250,00 leasing of 1 camera with ilumination
          • 100,00 leasing 3D lens
          • 300,00 diary de cinegrafist/film make staff
          • 150,00 material for scenary, diverse costs
        • The ediction cost is R$ 400,00
          • 200,00 leasing of a portble ediction isle
          • 200,00 diary of editor/productor
      Virtual Reality in Education 3D VIDEO
      • List of equipments used
      • Recording:
      • - Lens 3D (maker: NuView, Model: SX2000)
      • - Camera 8mm (maker: Sony Model: miniDV Hi8)
      • - AC extencions (plugs)
      • - 2 miniDV 8mm tapes
      • - BNC/RCA conection cable
      • - 2 batery for camera
      • ediction:
      • - Notebook with firewire interface
      • - Video ediction software: Adobe Premiere 6.0
      Virtual Reality in Education 3D VIDEO
        • Caution to produce a 3D video
          • Detailed and good script
          • Correct frames
          • Sharp candidate objects to 3D point
          • Paralaxy distance adjust
      Virtual Reality in Education CONCLUSION
        • The dissemination of RV is on a former moment associated to fall of equipments costs , that ocurrs year by year. Win the costs barrier, there are the cultural barrier, feeded by lacking of application and specific knowledge.
        • The use of RV na Education is affected in same way. The equipments cost fall and alternative solutions like the 3D projection with polarized light mast be help and disseminate the RV at minor education institutions.
      Virtual Reality in Education CONCLUSION
      • “ There are not presential and distance learning conflicts, but there are a traditional teaching that refuses to incorporate new technologies and a flexible education that sums Information and Comunication Technologies (ICT) to add value for teachers and students”
        • Dia Nacional de EaD - 27 november/2006
      Virtual Reality in Education CONCLUSION
        • [1] Youngblut, C. (1998). Educational uses of virtual reality technology. IDA Document D-2128. Institute for Defense Analyses, Alexandria, Virginia.
        • [2] NETTO, A.V., MACHADO, L.S., OLIVEIRA, M.C.F., “Virtual Reality: Definições, dispositivos e application”, ICMC-USP / POLI-USP, 2002.
        • [3] MINE, M., “Towards Virtual Reality for the Masses: 10 Years of Research at Disney’s VR Studio”, Walt Disney Internet Group, VR Studio, Glendale, USA, 2003.
      Virtual Reality in Education REFERENCES
        • [4] Romero Tori (2003) “O Virtual que marca Presença” , Associação Brasileira de Education a Distância – ABED, Revista Brasileira de Aprendizagem Aberta e a Distância
        • [5] “P3D Tecnologia da image” 2006, http://www.prodigy3d.com.br/
        • [6] Daniel C. Cliburn (2004) “Virtual Reality For Small Colleges” , Department of Mathematics and Computer Science of Hanover College, Hanover, Indiana, EUA.
      Virtual Reality in Education REFERENCES
        • [7] RASBAND, W. , "ImageJ - Image processing and analysis in Java”, National Institutes of Healt, EUA, disponível em http://rsb.info.nih.gov/ij/, visitado em 22/11/2006.
        • [8] Razor3D 2006, http://www.razor3donline.com/
        • [9] Dynamic Designer (2006) http://interactivephysics.design-simulation.com/DDM/index.php
      Virtual Reality in Education REFERENCES
        • [10] “ VR in the Schools” http://vr.coe.ecu.edu/pub.htm , East Carolina University Greenville, North Carolina USA
        • [11] Pape, D., Anstey, J., Dawe, G., A Low-Cost Projection Based Virtual Reality Display. The Engineering Reality of Virtual Reality 2002 SPIE Electronic Imaging: Science and Technology. San Jose, CA, 2002.
      Virtual Reality in Education REFERENCES
        • [12] Pair, J., Jensen, C., Flores, J., Wilson, J., Hodges, L., Gotz, D., The NAVE: Designand Implementation of a Non-Expensive Immersive Virtual Environment. SIGGRAPH 2002 Sketches and Applications, 2000.
        • [13] Belleman, R., Stolk, B., de Vries, R., Immersive Virtual Reality on Commodity Hardware. ASCI 2001.
      Virtual Reality in Education REFERENCES
        • [14] The GeoWall Consortium, http://geowall.geo.lsa.umich.edu/.
        • [15] Bruno S. Monteiro, Milane C.O. Valdek, Ícaro L. L. Cunha, Ronei M. Moraes, Liliane S. Machado (2006); AnatomI 3D: Um Atlas Digital Baseado em Virtual Reality para teaching de medicin. Anais do VIII SVR - Symposium on Virtual Reality. Março, Belém - PA – Brasil.
      Virtual Reality in Education REFERENCES
        • [16] Moraes, R. M.; Machado, L. S. e Souza, A.C.M. (2003); VirtWall: A Concept of Low-Coast Virtual Wall for Immersion in Virtual Reality, In: Proc of SVR, pp. 383-385.
        • [17] Moraes, R. M.; Machado, L. S. e Souza, A.C.M. (2003); VirtWall: A Concept of Low-Coast Virtual Wall for Immersion in Virtual Reality, In: Proc of SVR, pp. 383-385.
      Virtual Reality in Education REFERENCES
      • Antonio Amorim
      • [email_address]
      • Grupo de Sistemas Pervasivos e de Alto Desempenho - Laboratório de Sistemas Integráveis (LSI)– Universidade de São Paulo (USP) – São Paulo – SP – Brasil
      • Rodrigo Arnaut
      • [email_address]
      • Laboratório de Técnicas Inteligentes (LTI)– Universidade de São Paulo (USP) – São Paulo – SP – Brasil
      Virtual Reality in Education AUTHORS ICBL2007 Conference