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But what if the approach angle of the cue ball is 0? Like when the CB hits the OB head on, then the path of the CB is the farthest from the tangent

Hey everyone please check out my new video on 30 degree rules! I used ball tracking code to accurately record the deflected angles for rolling cue ball shots

Keep me updated! That would be awesome project:)

I Sure! I didn't write anything original. All essential tools come from OpenCV. Just try out different things haha

This will work with the top view of the table right? If you get background then a lot of stuff can be detected as circles

I tried the HoughCircle it works great! I just need to find the radius of the ball in each given video and that's pretty much it! THank you!

I see! I'll try that out, thanks!

That's the ultimate goal that I'm trying to figure out haha

Thanks for the tips! I'll check out the resources:) I think HoughCircles sometimes detect circles out of nowhere, right?

Thanks! I'll improve them before they are even useful for the public haha. Now it's just at working stage, but far from useful:)

I managed to track balls when there's a bright spot on the ball. See https://forums.azbilliards.com/threads/tracking-pool-balls-using-opencv.552749/ or

Thanks for the encouraging words! I'll try to improve the codes so that it recognizes regular balls without bright spots

I posted a question before about how I can track cue ball (or any ball) using some codes https://forums.azbilliards.com/threads/how-to-track-cue-ball-movement.552461/#post-7506743. Now I found a method in OpenCV that works pretty well for slow-mo videoes. Here are some demo clips I made...

Thank you!

Thanks!

Hi Bob, thanks for the info! Do you have the link to Shaw's high run thread you mentioned?

Does anyone know how to track the cue ball given a video file? I want something that looks like this: Appreciate in advance!

This discussion is simply brilliant! Thank you so much Bob and nataddrho:) I hope more keeps coming. I'll read the paper carefully to catch up haha

I believe this happens each time you put on a new cloth, Niels Feijen has a video about how to adjust the style of play when the conditions are slippery. Basically you use less English and more on the vertical spins.