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Unread 20-02-2014, 18:32
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Re: Automatic catcher?

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Originally Posted by faust1706 View Post
Tracking a ball is a feat on its own than not many teams get around to doing, yet alone calculating its trajectory and autonomously moving to where it is going to land. It involves some serious geometry if your camera is not perpendicular to the ground. You also have to account for the delay. Can you write an efficient enough program that will give an accurate solution in time? It is a very complex problem, but a lot of fun to solve.

I would simply go off driver reflex, and I'm the vision programmer on the team.
It's probably still a waste of time, but I can think of an easier way to do this. It requires a omnidirectional drivetrain. Basically you use PID. For left to right, it is simply using PID to try and center the ball on your camera's x-axis. Forwards and backwards is a bit more difficult. I would probably use some sort of function which combines the current size and height of the ball, and feed that into PID. It seems like with some tuning you could get it to work.
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Unread 25-02-2014, 06:11
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Re: Automatic catcher?

Our Programming team made something huge. they tracked the ball with the camera and using Gyro drove to the ball(you can know when you're really close when the radius of the ball is pretty high-can be read from the dashboard) and then we just catch the ball.
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Unread 25-02-2014, 07:17
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Re: Automatic catcher?

Is it able to tell the difference from the opponents ball? Thats really cool though!
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Unread 25-02-2014, 08:34
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Re: Automatic catcher?

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Originally Posted by Amit3339 View Post
Our Programming team made something huge. they tracked the ball with the camera and using Gyro drove to the ball(you can know when you're really close when the radius of the ball is pretty high-can be read from the dashboard) and then we just catch the ball.
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