Grabbing images at 60 hz with IMAQ grabber and showing them

Hi all,
I'm programming an application where I 've to show and do some realtime (60hz) calculations on a thermal image coming from a thermal camera through GigE
At the beginning, the program works fast, good framerates, but after a while, framerates start dropping, and eventually will stop.
When I remove the Imaq image viewer (right, I do not work with the external windraw), the program doesn't slow down, but than I haven't any image anymore
I tried with synchronous displays etc, but nothing helps.
Any idea's?
in annex, you have a screenshot of a part of the program.
Thanks
Attachments:
ni screenshot.png ‏24 KB

Hello Biebel,
Can you share your actual VI's/code (including subVI's)?
It would be interesting to see what you're doing in parallel in your timed loop.
Are you perhaps building any arrays in parallel or in other parts of your VI?
Is the memory and/or CPU usage of the program increasing with time?
Are there any other programs running in parallel?
What do you exactly mean with "after a while"?
Is this 5 seconds or rather several minutes or hours?
Decreasing the update rate could be a good idea, but in this case I think it could still cause issues.
Especially if your frame rate gradually drops, this could indicate a memory leak.
Kind Regards,
Thierry C - Applications Engineering Specialist Northern European Region - National Instruments
CLD, CTA
If someone helped you, let them know. Mark as solved and/or give a kudo.

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