Hi,I want to locate/track a high intensity laser pointer spot on a livevideo. * A web camera with USB interface is connected to a PC running FedoraCore 5 Linux (and optionally Windows XP pro). The camera is pointed toa wall which is used as the projection screen. * One red and one green laser pointers are pointed to the screen atpseudo random locations. Laser are activated randomly for a durationof 50-2000 milli second. * Intensity of the laser pointers' spots are significantly brighterthen the any texture/image on the wall.I want to locate the laser pointer spots (ie. find the X,Y position ofthe laser pointer spots) in image frame and track them at video framerate.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 wouldbe even better) on a live color video from a USB web camera?Regards,Albert

OpenCV's lukas-kanade tracker might be useful for tracking pointfeatures. See lkdemo.c in the samples directory after downloading opencvsources.VKC

How to locate/track a high intensity laser pointer spot on a live video?

Mar 10, 2007 21 Replies

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fangaofeng76 10 years ago

are you realize it?

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Charlie Harris 10 years ago

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

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