Tennis ball's within radius of a circle? [closed]

asked 2019-06-19 11:19:04 -0500

Hi Guy's

I am new to OpenCV. I am doing some research for a pet project using OpenCv. The idea is a person hits/throughs a tennis ball from a range of approximate 5 meters or so at a target circle painted on a flat concrete wall.

I would like to assign points for balls in the target circle.

Some advise on where to start and how to approach is needed. I am planning to use a raspberry pi 3B+ with Pi Camera or Logitech webcam for starters.


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Closed for the following reason not a real question by berak
close date 2019-06-20 00:23:18.858265


how to approach

sorry, but in general, we don't do that.

we can help you though, once you have an opencv related problem

berak gravatar imageberak ( 2019-06-20 00:23:07 -0500 )edit

Note through that a tennis ball travels easily at 30-40m/s. At 5m distance with 25-30fps acquisition rate you will have ~5 video frames with the ball moving. It will be difficult to get the moment of impact.

Did you think about a hardware based solution (pressure sensor) on the target?

kbarni gravatar imagekbarni ( 2019-06-20 03:20:58 -0500 )edit

Thanks for the comments valuable information thanks! Although not deemed a "real question" :-)

c00lkat gravatar imagec00lkat ( 2019-06-20 03:49:48 -0500 )edit