Setting up "Curve Parameters" for Setup Learn Geometric Pattern

[Candice]

Hello

Can anyone point me in the right direction of where to read about putting together some curve parameters for the geometric pattern matching?  If anyone has a quick example, that would be most helpful.

Thanks,
Candice

[GuenterMueller]

Hi Candice.

You know the Vision Concepts Manual, especially the chapter "Geometric Matching"? At the same time, you might look in the Vision Help -> "IMAQ Setup Learn Geometric Pattern". Both documents cover the Curve Parameters in detail.
Hope this "matches", Guenter

[michaeld]

Here is a link to the Vision Concepts Manual, in case you aren't familiar with it.

Vision Concepts Manual

[Candice]

Thank you for your replies.

I went through those two papers before I posted here, and I was hoping for something further. I've read both of them and need more than just the bare-bones info.

Thanks,

Candice

[GuenterMueller]

Sorry Candice, I do not have a good example.
Only idea: Open the Geometric Matching Example.vi.
On the BD, locate IMAQ Setup Match Geometric Pattern and create a control for the optional terminal "Curve Parameters".
Now you can run the VI and examine the effect of the "Curve Parameters".
Hope this helps, Guenter

[michaeld]

Candice,

Is there something specific you are looking for in regards to curve parameters?

[Candice]

The attached vi is a replica of the pattern matching example vi that ships with Vision, but it has Geometric Pattern Matching in it.  Basically, I'm just trying to learn a template, and then search the image for that template.  The catch is, I need to search for all different sizes of that template.

[Candice]

Blast! the attachment!

[michaeld]

Candice,

Have you tried using the Vision Assistant to create your curve parameters? You can load a sample image that your camera would normally acquire, create a template image, and then modify the curve parameters through a GUI so that you can see the real-time effects of the various settings. It should be quite easy to search for the same template that is scaled, you just have to define what your minimum and maximum scale range is. After you have your settings as you like them, you can then go to Tools >> Create LabVIEW VI, which will create a LabVIEW VI that you can then examine and use to modify your current code to use the parameters setup by Vision Assistant.

[Candice]

I'm not familiar with Vision Assistant and I was hoping to avoid it. But it looks like VA is my only option right now so I will start learning how to use it. Thanks for your help 🙂