Pls help!!! student project about IMAQ circle detection

[iamcoconut]

I am working on a school project about machine vision. Circle detection function is being used in the project. my tutor require me to explain the basic algorithm and theory used in the IMAQ circle detection. But after a extensive searching, i still can't figure out the Danielsson Function for circle detection even i read the IMAQ concept manual.

Question
1) Does anybody tell me more about the concept used in IMAQ circle detection
2) Does the circle detection function is the same as the Hough transformation??

Any Advice or information is welcome
Thanks a lot

[Jack_A.]

The IMAQ Vision concepts manual is only to give a brief summary of how each operation is performed, not a detailed analysis with the algorithms. But, the circle detection states that it uses the Danielsson function. This is a typical approach to the circle detection problem. Try searching the web for some more detailed explanation of how the Danielsson function works and its relation to circle detection in image processing.

Hope this helps,
Jack Arnold
National Instruments

[iamcoconut]

Thank You every much for ur advice. I have searched the web many times. but the search result is not aim to my target. I usually use google to search danielsson function (distance) or machine vision circle detection as key phrase. the result usually refer danielsson as a name of a person. in fact, danielsson is a famous person. but the rare show me the theory. when using the phrase circle detection, it onlt give me hough transform.

does anybody possess some resources about danielsson function for circle detection??!! pls share with me if u could!!

Thanks