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Visualization Learning for Visually Impaired People Patrick Salamin, Frédéric Vexo, Daniel Thalmann PowerPoint PPT Presentation

Visualization Learning for Visually Impaired People Patrick Salamin, Frédéric Vexo, Daniel Thalmann Patrick Salamin, Ph. D. student VRLab/EPFL, Switzerland Introduction Motivation: Digital content on the WEB is for everyone

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Visualization Learning for Visually Impaired People Patrick Salamin, Frédéric Vexo, Daniel Thalmann

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Visualization learning for visually impaired people patrick salamin fr d ric vexo daniel thalmann l.jpg

Visualization Learning for Visually Impaired PeoplePatrick Salamin, Frédéric Vexo, Daniel Thalmann

Patrick Salamin, Ph. D. studentVRLab/EPFL, Switzerland


Introduction l.jpg

Introduction

  • Motivation:

    • Digital content on the WEB is for everyone

    • What about visually impaired people with 3D shapes (e.g. a human face)?

  • Constraints:

    • Patient have to be not born blind

    • System must be low-cost and mobilefor a large dissemination


Why 3d shapes and audio l.jpg

Why 3D shapes and audio?

  • 3D shapes

    • Crucial for the Education

  • Available modalities (haptic feedback)

    • Force feedback  corners problem, expensive

    • Tactile  good for surfaces, non-portable

    • Audio  good for volumes, not for surfaces

  • Our solution: the PDA

    • Audio and tactile screen combined

    • Low-cost and portable

http://www.societyofrobots.com/robot_arm_tutorial.shtml

http://pegasus.me.jhu.edu/~rwebster/index_files/projects/tactile.htm

http://www.mondotees.com/index.asp?PageAction=VIEWPROD&ProdID=2896


System description 1 l.jpg

System description 1

  • Digital content on the WEB

  • Extraction of semantic information from a 3D shape

  • Acquisition of the data through the Internet


System description 2 l.jpg

System description 2

  • Semantic rendering

  • Tests and results


Conclusion l.jpg

Conclusion

  • Efficiency

    • Clear understanding of the contours

    • Intuitive concept of continuous tonality variation to render the height

    • Efficient and promising application

  • Further works:

    • More complex shapes (e.g. human faces,and even… animations?)

    • Working with visually impaired people


That s all folks l.jpg

That’s all folks!

  • Thanks for your attention

  • Questions?


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