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Skip rope jumping, counting

 
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thusgaard
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Joined: Wed Jun 07, 2006 11:21 am
Posts: 102
Location: Skanderborg, Denmark

PostPosted: Sat Jul 28, 2012 2:58 pm    Post subject: Skip rope jumping, counting Reply with quote

Hi

Is it possible to use a webcam to count how many jumps I do while skip roping.

And displaying the number live on a screen!

Kind regards Thusgaard
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Dutch_Master
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Joined: Tue Mar 27, 2007 2:49 am
Posts: 2431

PostPosted: Sat Jul 28, 2012 7:43 pm    Post subject: Reply with quote

In theory: yes. In practice: only if you have a lot of time on your hands and not a life to live Razz
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lok1950
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Joined: Tue May 31, 2005 6:31 am
Posts: 1025
Location: Ottawa

PostPosted: Sat Jul 28, 2012 9:00 pm    Post subject: Reply with quote

And lots of money for the cameras and programmers as there no off the shelve app available Rolling Eyes

Enjoy the Choice Smile
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Bruno
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Joined: Tue Sep 18, 2007 7:07 pm
Posts: 139
Location: Cambridgeshire, UK

PostPosted: Sun Jul 29, 2012 11:44 am    Post subject: Reply with quote

I think this would be difficult (but not impossible) to do on a computer with images captured by a camera. You could try a kinect (if that is the word) but you'd similarly have quite a programming overhead. Although, as an aside, I'd have a look and see if someone has written a library for counting events that occur in images/a video stream.

I think an arduino for event counting and data export to pc would be a good bet here, with skips detected by the rope breaking the beam of a diode laser targeted at a light dependent resistor or a photodiode.
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lok1950
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Joined: Tue May 31, 2005 6:31 am
Posts: 1025
Location: Ottawa

PostPosted: Sun Jul 29, 2012 4:26 pm    Post subject: Reply with quote

Bruno wrote:
I think an arduino for event counting and data export to pc would be a good bet here, with skips detected by the rope breaking the beam of a diode laser targeted at a light dependent resistor or a photodiode.


Which defeats the OP's purpose of using a camera Wink

Enjoy the Choice Smile
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einonm



Joined: Fri Apr 20, 2012 11:19 am
Posts: 29
Location: Cardiff, UK

PostPosted: Mon Jul 30, 2012 10:07 pm    Post subject: Reply with quote

Yes! I think it's eminently possible.

I think you should check out OpenCV -

http://opencv.willowgarage.com/wiki/

And try looking for some similar vids on u-toob.

I'd be interested to see what happens!
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Bruno
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Joined: Tue Sep 18, 2007 7:07 pm
Posts: 139
Location: Cambridgeshire, UK

PostPosted: Mon Jul 30, 2012 11:46 pm    Post subject: Reply with quote

lok1950 wrote:
Which defeats the OP's purpose of using a camera Wink

Enjoy the Choice Smile


Fair point lok1950, but is the OP more interested in the goal or the method by which it is achieved? S/he might be mentioning the camera simply because that is what is to hand.
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lok1950
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Joined: Tue May 31, 2005 6:31 am
Posts: 1025
Location: Ottawa

PostPosted: Tue Jul 31, 2012 12:03 am    Post subject: Reply with quote

Could also use a microphone count the number of times the rope hits the floor but your approach Bruno would be more exact.

Enjoy the Choice Smile
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