Pattern matching is a method for finding regions in a grayscale image that match a reference image pattern. The pattern matching VI uses a reference or template image to find like images within a new image regardless of location, rotation, or scaling of the template. Pattern matching has an advantage over particle analysis or edge detection because the pattern search does not rely on distinct brightness of the imaged object compared with the image background. This chapter demonstrates the usage of Vision Assistant to find patterns that match with a reference pattern. Modification techniques are discussed for real‐time pattern matching. The chapter also talks about the creation of a pattern matching VI by using Vision Express. Prior to creating pattern matching using Vision Express, a VI for the continuous image acquisition using the Grab function can be used to capture and save an image for analysis using Vision Assistant Express.
Pattern Matching
2014-12-08
16 pages
Article/Chapter (Book)
Electronic Resource
English
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