Motion detection.


    Apr 11 2010 | 5:05 pm
    I made a patch for school last year that involved motion detection through a webcam. My problem is that I seem to have deleted it inadvertently and though I can remember how I did it, I can't remember the details.
    Specifically there was one stage where identical frames would be subtracted from the output so that whenever no one was moving it wouldn't send any information.
    I can't for the life of me remember how I did this. Does anyone have any ideas?

    • Apr 12 2010 | 1:44 am
      Hi
      Try Jamoma . . .
    • Apr 12 2010 | 9:13 am
      The cv.jit library is very nice too.
    • Apr 12 2010 | 2:22 pm
      [jit.qt.movie] into [t l l] then both outputs swapped into their opposite inputs on a [jit.op @op absdiff] and then possibly into something like [jit.glop @gain 0.9] to blur or smooth the motion differencing
    • Apr 12 2010 | 5:14 pm
      jit.change.
    • Apr 12 2010 | 6:25 pm
      Thank you all so much. I'm going try this out on my lunch break!
    • Apr 13 2010 | 1:49 pm
      jit.change seems to be just what I needed. I'll follow up when I get everything working. Thanks everyone!