Detect the bump online Laser

Hello world

I'm working on a project where I use a laser to detect the number of bumps on the surface. A screenshot of the laser profile is attached. Now I'm running out of ideas, how do I detect if there are bumps two or three.

I tried to use find straight edges, it's giving me some good results, but when I use IMAQ find edge VI in LabVIEW to do this, I'm not able to get something, but the points are identical to the original line.

See all screenshots

Can someone please help me detect and count the number of bumps.

Kind regards.

Shane5ab

Here's an idea:

Use the rake function to find the coordinates of edge first, the high or low (top might work better).  Set up a line for these coordinates (elimination of outliers) and subtract the coordinates sent the original coordinates.  Simply extract the coordinates Y.  Find peaks allows to find bumps and count them.  You can also calculate the slope (derivative of 1) or second derivative and locate the bumps with these graphs.

Bruce

Tags: NI Hardware

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