Computer Vision Readings - PowerPoint PPT Presentation

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Computer Vision Readings

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They make the connection to interactive graphics as arena in which ... human is in the loop (can make adjustments because they are getting graphical feedback) ... – PowerPoint PPT presentation

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Title: Computer Vision Readings


1
Computer Vision Readings
  • Discussion and Activity
  • Susie Wise
  • 11/11/2004

2
Computer Vision for Interactive Computer Graphics
  • From multimodal to looking specifically at
    methods for using VISION
  • Vision can be a powerful interface device because
    of its potential for sensing
  • Body position
  • Head orientation
  • Direction of gaze
  • Pointing commands
  • Gesture

3
Computer Vision for Interactive Computer Graphics
(2)
  • They make the connection to interactive graphics
    as arena in which to work
  • Successful because
  • limited context (limits recognition reqd)
  • human is in the loop (can make adjustments
    because they are getting graphical feedback)

4
Computer Vision for Interactive Computer Graphics
(3)
  • Areas of exploration ?
  • Large object tracking
  • Shape recognition
  • Motion analysis
  • Small object tracking

5
A Design Tool for Camera-based Interaction
  • Recognizing that image classifiers are hard to
    design and develop, they have a made tool
  • Goal for ordinary interface designers to work
    with camera-based interaction
  • Introduce crayons which allow UI designer to
    generate training data quickly by painting
    classification over sample images

6
Design Principles
  • Use context to limit the range of visual
    interpretations
  • Take advantage of graphical feedback (to make
    adjustments, constrain input)
  • Simplify image classifier

7
Activity
  • Divide into small groups
  • Pick an arena where vision-tracking could be
    fruitful (based on one in the articles or come up
    with a realm of your own)
  • Brainstorm application scenarios
  • As with Milestone 1 ideation, go for breadth
  • Report back to full group
  • Range of ideas
  • Consensus on best to pursue
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