how to Locate or Set coordinate system to circular parts

[PKC]

Hi,

I m having problem with locating circular parts with "Set Coordinate sys" in Labview 8.5.

Also, I am not able to find any example that is using it for circular parts.

Please advice!

Thanks,

Praveen  

[muks]

Can you post a few images? What are your results?

[PKC]

Hi,

Please find image attached.

I had tried it for converting/migrating code VBAI code & Vision assistant8.6 code it works but when converting from both of the software, I feel code become heavy/take more time to process.

please also suggest whether using migrate version of code is OK for good vision development or should be done entirely in Labview.

Thanks,

PKC

[muks]

What do you want to measure/analyse in the image? no of holes? surface defects? migrating is for checking and i always do it but will definetly modify and optimize it finally.

[PKC]

I want to detect no of hole as well as seal (the black ring). since component is actually moving on cenveyor in field I would like to locate the circular edge, & then set Cordinate to the center of "circular edge".

Thus ROI of Detect Object & intensity measurement or any further steps will be repositioned to the center of part.

please suggest how to optimize after migrating (Key concern areas).

Thanks,

PKC

[Lab V]

Hi Praveen,

To optimize the your algorithm you need to take care of both hardware(Light selection) & software(Vision function). You can improve the quality of image capture by using some diffuse light instead of ring light/spot light.the image you have shared has lot of glare which required little bit more processing.

use of color light with color fliter on camera lens will also reduce the glare & you will get perfect circular shape black hole 

you can use any function(thresholding , pattern matching etc) once your image is stable & clear.

Regards

HKT

[muks]

---

PKC wrote:

I want to detect no of hole as well as seal (the black ring). since component is actually moving on cenveyor in field I would like to locate the circular edge, & then set Cordinate to the center of "circular edge".

Thus ROI of Detect Object & intensity measurement or any further steps will be repositioned to the center of part.

please suggest how to optimize after migrating (Key concern areas).

Thanks,

PKC

---

Make sure that the back ground is uniform. then you can use a clamp to locate the object. Then you can extract it and do further processing.

[PKC]

Thanks a lot.

I am presently working on making dime light for this component.

as soon it is ready i will post new image & processing details.

Thanks again & Happy New Year to you.

Praveen.

[muks]

Try this