IMAQ Pattern Match Score

[jjbloomfield]

I am working on an application that uses the IMAQ Match Pattern VI.  The matches that are returned have a score assigned to them.  The help documentation for this reads:

Score ranks the match results on a scale of 0 to 1,000, where 0 equals no match and 1,000 equals a perfect match.

Likewise, there is a VI input called "Minimum Match Score", which is the smallest score a match can have to be considered valid. The data range for a match is between 0 and 1000. 

Can anyone point me to a resource that might better explain how this score is derived or at least defined?  

[nikale]

Hi,

The NI Vision Concepts Manual provides ancillary information; I've linked that below. The In-Depth Discussion for both Pattern Matching and Geometric Matching may prove helpful in providing the detail you're wanting.

Machine Vision:
http://zone.ni.com/reference/en-XX/help/372916P-01/TOC15.htm

I hope you find this information helpful. Have a great day!

- Kale