Analysis in Machine Vision ApplicationsNational Instruments is a leading machine vision and scientific imaging hardware and software tools provider. Engineers and scientists use NI vision software and hardware to solve a diverse set of application challenges faster and at a lower cost, including:
Common Analysis AlgorithmsPattern Matching - Pattern matching is the process of checking for constituents of a given pattern. It is used to test whether things have a desired structure, to find a relevant structure, to retrieve the aligning parts, or to substitute the matching part with something else. Edge Detection - Edge detection tools allow you to identify and locate discontinuities in the pixel intensities of an image. The discontinuities are typically associated with abrupt changes in pixel intensity values that characterize the boundaries of objects in a scene. Optical Character Recognition - Optical character recognition (OCR) is an algorithm designed to translate images of handwritten or typewritten text into machine-editable text, or to translate pictures of characters into a standard encoding scheme representing them. In PAC applications, engineers commonly use OCR to examine date codes or to sort products. 1D & 2D Barcode Reading - NI Vision currently supports the following barcodes: Code 25, Code 39, Code 93, Code 128, EAN 8, EAN 13, Codabar, MSI, and UPC A.The process used to recognize barcodes consists of two phases: a learning phase in which the user specifies an area of interest in the image which helps to localize the region occupied by the barcode and the recognition phase during which the region specified by the user is analyzed to decode the barcode. Case Studies
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