[Python] Ball tracking with Hough transformation

I'm trying to track a small, fast-moving ping pong ball with OpenCV in Python. I'm using a Hough transformation right now, what are the best parameters? Also, is a Hough the best option or something such as an elliptical transform?

Here is my current function:

circles= cv.HoughCircles(
blur, cv.HOUGH_GRADIENT, 1.2, 640,
param1=100, param2=20, minRadius=10,
maxRadius=40
)

Continue reading...