Real time pattern recognition

[Joanna03]

 I'm trying to build a pattern recognition system, so that I can detect in real time "STOP" traffic signs. I've build a template and a script using Vision Assistant, an then I used the "Export to VI" option. I've been trying to modify the generated VI, to add the webcam part. I can't figure out what's wrong, as the program captures video, but the pattern recognition part doesn't behave as I want,it just applies some image filters and displays the first captured image. I'm a begginer in LabVIEW, please help me figuring out what's wrong. It should show the captured video, marking the pattern if one is found. And one more question...it's better to use "Export to VI" feature, or should I use the Pattern Matching from the Palette? Thanks

[Michael-B]

Hi Joanna,

For the sake of simplicity, have you tried using the Vision Acquisition Express VI?  You could do something like this:

Using the Vision Acquisition Express VI in combination with Vision Assistant can often really simplify your application.