06-10-2015 09:57 AM
Hello,
I have the developer suite w/vision.
Using the Centroid VI, what is the sub pixel resolution I'd hope to get? I expect the image of the circle to have slight rolloff as a function of the imaging application (not a well defined circle); this should help increase the data set. I would expect the resolution to increase as a function of the circle size relative to the detector's pixel pitch. Is there a rule of thumb to figure this out ?
Beyond thresholding and masking out background image, is there another VI or approach that could increase resolution over the centroid VI?
Thanks
06-11-2015 06:21 PM
Hi cheeseburger,
The link below provides the equation that IMAQ Centroid is using.
How Does the IMAQ Centroid VI Work?:
http://digital.ni.com/public.nsf/allkb/4F4947441856350B86256B3E0074FD39
I hope this helps!
- Kale