Find information on types of machine vision systems available and their usage in different applications

in Vision

A machine vision system is a combination of both computer hardware as well as computer software that works together with cameras and lighting to capture pictures of objects. Machine vision is used for the purpose of inspecting the quality of the object and then making a decision whether the object is of desired quality or not. To accomplish this task first the image is captured and stored in device's memory. The next step is to compare the image to a predefined image in the device's memory or a quality standard in order to detect defects in the concerned object. This machine vision technology is applicable in a variety of different applications. However machine vision technology is mainly developed and applied to manufacturing applications. The extensive use of machine vision technology is to inspect quality and maintain quality control which enables the manufacturing companies to prevent defects in manufactured products thus preventing the defective goods from being sent to customers. This technology helps the manufacturing companies to detect the problems in manufacturing processes and subsequently improve their manufacturing processes and also reduce the costs of production. The use of machine vision devices for inspecting defects and maintaining manufacturing quality dates back in the early 1980s. At that time machine vision systems were difficult to operate, to install, gave limited performance and were not so cost effective. The programming done in earlier machine vision systems were used to be complex. With time and growth in microprocessor and software technologies, these obstacles were reduced recently, enabling the machine vision to become a powerful inspection and quality control technology. This advancement in technologies helped manufacturers to improve quality of their products and increase productivity.


There are many types of machine vision devices in the market. OCR & OCV Code Inspection system detects the optical character recognition code and optical character verification code printed on the package of products. Inspecting ocr/ocv can be accurate, and fast. That depends on the two factors. They are print quality and positioning ROI. Clear and high quality printed ocr/ocv increases the reliability of the inspection system. Thus the character height, font and spacing should be taken care of while printing the codes. Another system is Food and Packaging vision system which is used mainly in food industries. It inspects the print, pattern, barcodes, color, ocr and ocv etc. printed on the products label and also performs more quality checks on the products.


An inspection and control of quality in manufactured products is of utmost importance to detect defects in the products and prevent them from being sold to customers. For this machine vision systems like inspection and vision systems were developed. These systems are useful to manufacturers in preventing defective products to be sold in market.


However machine vision technology is mainly developed and applied to manufacturing applications. The extensive use of machine vision technology is to inspect quality and maintain quality control which enables the manufacturing companies to prevent defects in manufactured products thus preventing the defective goods from being sent to customers. This technology helps the manufacturing companies to detect the problems in manufacturing processes and subsequently improve their manufacturing processes and also reduce the costs of production.

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This article was published on 2011/09/26