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Soccer Ball Tracking

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Soccer Ball Tracking http://fcl.uncc.edu/nhnguye1/balltracking.html

Soccer Ball Tracking http://fcl.uncc.edu/nhnguye1/balltracking.html

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  • 1. Soccer Ball Tracking and StroMotion Computer Vision Final Project Presentation Rich Nguyen Present Date: 11/27/07
  • 2. Overview
    • Problem Statement
    • Related Techniques
    • Innovative Approach
    • Experimental Plan
    • Additional Information
  • 3. Problem Statement
    • Viewing sport would be so much more enjoyable if the spectators can see how rapid ball movement broken down.
  • 4. StroMotion
    • Is the decomposition of the image.
    • Allows the viewers to appreciate the evolution of the movements of the ball in a manner intuitive and immediate.
    ► ►
  • 5. Related Techniques
    • Pre-processing technique
    • Template Matching
    • Histogram Analysis
    • Connected Component Labeling
    • Nearest Neighbor
  • 6. Innovative Approach
    • Basic Processing
    • Template Matching
    • Connected Component Labeling
    • Region-based Segmenting
    • Contour Tracking
    • StroMotion Displaying
  • 7. 1. Basic Processing
    • Grayscale converting
    • Smoothing
    • Normalizing
  • 8. 2. Template Matching
    • Create ball template
    • Convolute ball template over the pre-processed frame.
  • 9. 3. Component Labeling
    • Create histogram for filtered image
    • Take highest response score pixels.
    • Do connected component labeling.
  • 10. 4. Region Segmenting
    • Calculate the area and center of mass of each component.
    • 1 st frame, take the largest area.
    • 2 nd frame and on, take the area nearest to the previous frame.
  • 11. 5. Contour Tracking
    • Resample the region to equal to ball size.
    • Save the centroid as the ball position.
    • Draw the perimeter pixels as contour.
  • 12. 6. StroMotion Display
    • Use a “clipboard” to keep track of all ball image from previous frame.
    • Paste clipboard image to the current frame.
  • 13. Experimental Results
    • Ground Truth Collection method.
    • Compute the accuracy of the predicted center of the ball in comparison with GT.
  • 14. Additional Information
    • StroMotion on www.dartfish.com
    • Sports Tracking Consultant on www.sportvision.com
    ► ►
  • 15. Suggestions/ Questions Thank you. I hope you all enjoy it ! Thank you. I hope you enjoyed it !