HTape super fast tennis ball tracking (OpenCV - non hough)





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Published on Mar 16, 2013

Demonstration of quick and dirty tennis ball tracking, used to provide external physical input to HTape - a 3D audio processing engine. For example, you could attach a "birdie tweet" to the tennis ball, then physically move the sound source around to hear it simulated in 3D. If you attached a whisper, you might bring the ball up to your ear to hear it more clearly.

Opted against hough circles as I found the technique to be very unstable.

1. Isolate ball via HSV thresholding
2. Dilate / Erode to eliminate false positives
3. Find cvContours of thresholded image
4. Find bounding box of contours

** more gubbins here http://benvan.co.uk


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