Can I measure angle between reference image & current image?

[Rupali]

Hello all...

                 Can I measure angle between reference image & current image? In my project I have to align PCB which robot will keep at a place... I have to rotate it to a predefined position & then pick it up for next operation... For that I have a reference picture & from that I have to measure angle of current image(part) & rotate it. Can anyone please help...?

[KateB]

Hi Rupali,

Doing so would need a reference pattern on PCB.

You need a pattern on an original image as a template for match pattern.

Then, match pattern will return  an array of matched objects on acquired image, and it gave an angle of each objects compare to template also.

Regards, Kate

[Rupali]

Hello KateB..

     Thanks for reply.. 🙂

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KateB wrote:

Then, match pattern will return  an array of matched objects on acquired image, and it gave an angle of each objects compare to template also.

Regards, Kate

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            I didn't get what exactly you want to suggest... There is a reference pattern on the PCB.... But how to get array of matched objects on acquired image with VBAI 3.5..? Can you please explain...?

[KateB]

Hi Rupali,

You can use index measurement step to index out parameter from eacch step you perform.

What you need to index out is an angle from match pattern step.

Regards, Kate

[Rupali]

Sorry for disturbing but can you please show me how...? I'm just learning VBAI & till this time I never used index measurement step.. 😞 Here are some pictures of PCB..

Message Edited by Rupali on 01-18-2009 01:45 AM