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Computer Vision

Computer Vision. - A Human Computer Interface. Agenda. Introduction Tasks of Computer Vision Computer Vision Systems Applications Human-Computer Interface Good and Bad Conclusion. Introduction. Computer Vision Interprets visual images Sub field of AI

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Computer Vision

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  1. Computer Vision - A Human Computer Interface

  2. Agenda • Introduction • Tasks of Computer Vision • Computer Vision Systems • Applications • Human-Computer Interface • Good and Bad • Conclusion

  3. Introduction Computer Vision • Interprets visual images • Sub field of AI • Alternate to text input • Understands scene or features in image

  4. Tasks of Computer Vision • Object Recognition • Tracking • Scene Interpretation • Ego Positioning

  5. Computer Vision Systems • Image acquisition • Preprocessing • Feature Extraction • Registering

  6. Computed Tomography

  7. The Barber Pole The Aperture Problem

  8. Applications • Used in Artificial Intelligence • Industrial Applications • Automation • Robotics • Bio-Medicine • Satellite observation of Earth (continued…)

  9. Video Surveillance • Controlling Traffic • Creating Visual effects for Cinema and Broadcast • Medical Industry and Military also

  10. Human-Computer Interface It can be used in several fields such as • Detection of people, faces, hands. • Human motion and gesture recognition. • Facial expression recognition.

  11. Detection of people, faces, hands • Detecting facial expressions • Extraction of faces • Lip tracking • Personal Identity verification • Surveillance • Gender classification Detection of faces and hands

  12. Human motion and gesture recognition • Human beings uses ears & eyes as main sources • Computer Vision provides perceptual interfaces • Commercial & technical applications already started in this field

  13. Here in the above figure a man is trying to switch channels using gestures.

  14. Facial expression recognition • Security law enforcement • More understand & communicative The Smile Analysis Program.

  15. The Good & Bad Good about Computer Vision: • Computer Vision is a Knowledge Representation • It doesn't change working environment • It reduces the work to be done • Has Many applications

  16. Bad about Computer Vision • Real world problems can’t be constructed easily • It is expensive • It is difficult • A huge amount of neural processing power is required

  17. Last Words • Interprets visual images • Computer Vision is too broad • It is also a highly inter-related subject • Progress has been slow • This represents the greatest intellectual challenge in the field.

  18. References • en.wikipedia.org/wiki/Computer_vision • www.cs.cf.ac.uk/dave/vision.lecture • rvl4.ecn.purdue.edu/~kak/cviu.html • www.cs.wisc.edu/computer-vision/ • www.cs.cmu.edu/~cil/vision.html

  19. THANK YOU

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