Thread: Calculating the trajectory and where the ball will land with a 2D image
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Unread 02-02-2014, 15:54
Steven Donow Steven Donow is offline
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Re: Calculating the trajectory and where the ball will land with a 2D image
Quote:
Originally Posted by yash101 View Post
So this year, as you may have noticed (by my posts), I'm working on a uber-powerful vision tracking system. So I was thinking about how to create a driver-aid widget to find where the ball is, and where it will land. I will have a 2D image of the ball, but I can grab the third by either a PING or Trigonometry.

So here's my question:
So our shooter will most likely have 2 or three modes, a shoot, pass and toss mode, depending on which cylinders are fired. So, if I can get the exit velocity of each mode, and I can know what mode the shooter is in, how can I find out where the ball will land. I want to use trigonometry to do this, so I don't have to recalibrate the camera to look for a ball of a different size. How can I estimate where the ball will hit the ground.

Also, if a ball is tossed towards the robot, how can the robot automatically align itself by calculating the ball's trajectory?

My platform is OpenCV-2.4.8.0/Windows 8.1, under Visual Studio 2013.

Also, how do I find out the exit velocity of the ball from the shooter?
In order to determine the exit velocity of the ball, we used this program(I'm pretty sure this is it) in order to calculate exit velocity and angle. We used 120 fps video from a GoPro, and then used this program which tracks the trajectory of the ball in order to determine the velocity.