difference between feature and edge based geometric matching

[$hiv@]

Can anyone help me with the difference between a feature and an edge based geometric template matching ????

[petitOhu · Accepted solution]

I understand that :

o feature based geometric matching uses directly the intensity of the pixels, and searches pattern and their parameters

o edge based geometric matching firstly calculates the gradient of the image, and then uses this gradient to search features with generalised Hough transform..

More information here : NI documentation

Hope this helps...