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  • How to locate/track a high intensity laser pointer spot on a live v

    From [email protected]@21:1/5 to Albert Goodwill on Fri Sep 18 00:26:38 2015
    On Saturday, March 10, 2007 at 1:31:12 PM UTC+8, Albert Goodwill wrote:
    Hi,

    I want to locate/track a high intensity laser pointer spot on a live
    video.

    * A web camera with USB interface is connected to a PC running Fedora
    Core 5 Linux (and optionally Windows XP pro). The camera is pointed to
    a wall which is used as the projection screen.
    * One red and one green laser pointers are pointed to the screen at
    pseudo random locations. Laser are activated randomly for a duration
    of 50-2000 milli second.
    * Intensity of the laser pointers' spots are significantly brighter
    then the any texture/image on the wall.

    I want to locate the laser pointer spots (ie. find the X,Y position of
    the laser pointer spots) in image frame and track them at video frame
    rate.

    I wonder if there is an open-source C/C++ code for Linux (and Windows)
    which can locate/track bright spots (option of selecting color would
    be even better) on a live color video from a USB web camera?

    Regards,

    Albert

    are you realize it？

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Charlie Harris@21:1/5 to Albert Goodwill on Fri Sep 18 18:15:08 2015
    Hi Albert and Fangao

    I would also like to know more of working model.

    Could a flashing IR be read by a laser, to determine position on a model railway layout of a locomotive. Each IR with its own code.
    Thanks

    Charlie



    On Saturday, March 10, 2007 at 6:31:12 PM UTC+13, Albert Goodwill wrote:
    Hi,

    I want to locate/track a high intensity laser pointer spot on a live
    video.

    * A web camera with USB interface is connected to a PC running Fedora
    Core 5 Linux (and optionally Windows XP pro). The camera is pointed to
    a wall which is used as the projection screen.
    * One red and one green laser pointers are pointed to the screen at
    pseudo random locations. Laser are activated randomly for a duration
    of 50-2000 milli second.
    * Intensity of the laser pointers' spots are significantly brighter
    then the any texture/image on the wall.

    I want to locate the laser pointer spots (ie. find the X,Y position of
    the laser pointer spots) in image frame and track them at video frame
    rate.

    I wonder if there is an open-source C/C++ code for Linux (and Windows)
    which can locate/track bright spots (option of selecting color would
    be even better) on a live color video from a USB web camera?

    Regards,

    Albert

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)