Gesture Recognition

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A talk about my undergraduate individual project which I gave at BarCampNorthEast 2007, several months before completing my project. It gives an overview of a hand gesture recognition system, detailing how interesting points on a hand are found and tracked.

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Gesture Recognition

  1. 1. Hand Gesture Recognition Emma Persky storyteller, geek, believer, etc
  2. 2. Why Recognise Gestures?
  3. 3. New Models of Interaction
  4. 4. Accessibility!
  5. 5. Parameters of Recognition
  6. 6. How Does it Work? • Find the Hand (not my problem!) • Find Interesting Regions on Hand • Track Interesting Points • Compare Hand Path / Relative Position
  7. 7. Interesting Points • Edge Detection • Corner Detection • Regions of High Gradient of Change • Brightness / Colour Histogram
  8. 8. Tracking Points • Iterative Lucas - Kanade Method • Pyramid Feature • Outputs New Points and Probabilities
  9. 9. Tracking the Hand • ‘Flock’ of points • Cull outliers • Median (x and y) of Points is Centre of Hand
  10. 10. Recognising Gestures • Relative Position of Hands from ‘Start’ • Trace Path of Hand Centre
  11. 11. Applications • TV Control • Ubiquitous Systems Control • Games (Johnny Lee Eat Your Heart Out)!
  12. 12. Demo!

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