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Thread: Frame rate Issue

  1. #1
    Join Date
    Jan 2018
    Location
    United States
    Posts
    1

    Frame rate Issue

    i'm looking to get the best framerate with my products (DMM 42BUC03 or DFK 22BUC03).
    for example, the 22BUC should go to 150 fps.
    they are connected by USB on a Win7 64 OS, and i'm using the LabVIEW 2014 x64 programming environment.
    The exposure is set to 1 ms.

    the problem is : i never reach a such framerate...
    the best i could have is only 10 to 12 fps, with the smallest resolution (but a higher res dont drop the fps, or eventually not too much).

    the fps drops when i use the "IC_Grab_Picture.vi".
    precisely in this sub-vi, the fps drops when i call the "MemorySnapImage" (in an invoke node).

    Finally, i'll use these cam in two different ways : from an external trig, or in a live/continuous mode.


    Why the function to snap/get the image data is so long ?
    How to get the highest fps ?
    Do you have a such simple program/camera initialization, which is working fine at a high fps ?


    Thanks for your help. ( Phone Cable Internet Bundle )

  2. #2
    Join Date
    Jan 2003
    Location
    Bremen, Germany
    Posts
    4,868

    Re: Frame rate Issue

    Hello

    The 22buc03 can reach 160 fps only in 320x240 video format resolution and the exposure time must be below 1/400 second.

    In order to snap with this speed, you may use the ImageAvailable event. However, I am not sure, whether this is fast enough in LabVIEW at all.

    Do you have a such simple program/camera initialization, which is working fine at a high fps ?
    The device setup.vi sample.

    However, if you need 640x480 with 150 fps, then you should switch to USB 3.0 camera DFK 37UX287.
    Best regards
    Stefan
    IC Imaging Control Support

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