kinect smoothing mouse movement

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Hello all,
I'm working on a project to move the mouse cursor using the fingertip which is tracked by kinect using Depth Image. I'm albe to do the tracking but the problem is in moving the mouse in a smooth way. In my program, when I move the mouse it doesn't move in a smooth way , but instead it just jumps from pixel to pixel. My question is , Is there a way to use something like the smooth parameters of the skeletal tracking inorder to smooth my cursor's movement ?

Posted 4-Jun-12 5:23am

Makbg

Updated 5-Jun-12 21:35pm

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Karl Sanford · Answer 1 · 2012-08-23T04:04:00

You could use the skeletal smoothing, and that should help a bit. The best way I've found is with a moving average of your desired target (in your case, the mouse location). So instead of simply moving the cursor every time you have a movement in your fingertip point, use a queue to store the last N number of points (anywhere from 5 to 12 seems to work well). You then average the values in the queue, and apply that to your cursor. The next cycle, you will remove the oldest point, and add the new point to the queue, then average again. You just keep repeating this. You can get higher or lower smoothing by adjusting the number of points you keep in your queue.