Acquire 2D image from Line Scan Camera

[coweyes298]

Hi all,

I am setting up a line scan camera with PCIE1433 and CameraLink interface. The line scan camera is a 4096 line, and after settling up I was able to show  the continuous single line inside the NI MAX. I can set the camera file parameter to change picture height to 1000, 100, 1 according to what i want, and here are some interesting questions as follow: If I set the picture height to 100, does that means right now I am acquiring 100 lines and displaying it as a 4096*100 frame? Another question is: Let's say the line scan camera has line rate at 1k and I set as 100 lines for heights on the MAX, does that mean the frame rate become 10?

Thank you for the replay,

Louis   

[BruceAmmons]

You are correct on both.  100 lines creates a 4096*100 frame, and would make the frame rate 10 fps if the line rate is 1000. (1000/100 = 10).

Bruce

[coweyes298]

Hmm thats interesting. Lets say if i want relatively bigger picture height like 8000 with 1k line rate and i want to grab a frame of it, thus i have to wait for 8 seconds for a single frame. I tried to add frame timeout to greater than 8 second at MAX but for some reason if the frame rate becomes a such smaller number the MAX will not response...

[BruceAmmons]

In this case, I would acquire frames no larger than 1000 lines to avoid timeout issues.  You can always combine multiple images into a single image after the acquisition. This also gives you the option to cancel the acquisition before the entire thing completes.  Eight seconds is a very long time to wait for an acquisition.

Bruce