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video frame counter display

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  • video frame counter display

    Hello BIOMCH-L readers,

    I have a question for individuals working in the area of video motion
    capture. Does anyone know of a way to generate a synchronized frame
    counter display which can be overlaid on a standard video signal? That
    is, if I acquire data using my computer-driven movement analysis system,
    while simultaneously videotaping the trial using a VHS camcorder, I want
    to be able to play back the videotape and see a frame counter display
    (actually, "sample counter display" would be more accurate) superimposed
    over the image of my subject, so that "frame number 273" on the
    videotape corresponds to "sample number 273" acquired by the motion
    capture system.

    I hope this makes sense. I had this setup in a previous job, using a
    box (model no. 2902) made by ESE, a company in El Segundo, CA,
    interfacing with a MicroVAX-driven Vicon VX motion capture system.
    However, we could never make the system work once when we upgraded to
    the PC-driven Vicon370 system. Now I am using an entirely different
    package (Motion Analysis Corp. EVa Hi-RES). All suggestions welcomed!

    Thanks in advance,

    Terry S. Horn, Ph.D
    Director, Motion Analysis & Human Performance Laboratory
    Mississippi Methodist Rehabilitation Center
    1350 East Woodrow Wilson
    Jackson, MS 39216
    (off) 601-364-3328
    (lab) 601-364-3409

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