Now in China, the use of machine vision detection has penetrated into some cars, batteries, semiconductors, packaging, food/drug occupations, including semiconductor occupations and electronic occupations, and the use of semiconductor occupations in shopping malls, accounting for about 25%. For example, all kinds of production printed circuit board assembly equipment; Consumer electronics skills and equipment; Some SMT surface mount equipment and automatic production line equipment; Electronic components have been widely used in all aspects of quality inspection, and its products play a pivotal role in the use. Along with the advanced production skills intelligent rapidly climbing in our country, factory automation production robot industrial production line human eyes in precision, power and other aspects can not meet the requirements of enterprise advancement now. How to use machine vision detection to replace traditional manual operation, to improve quality, reduce costs and improve power, has become a demand of manufacturing operations. Machine vision profession in the struggle to improve Chinese production, in the future with the acceleration of the "intelligent building in our country 2025" strategy, the degree of industrial production automation and intelligence is expected to continue to deepen, this skill of machine vision will be more widely used.

The main hardware of machine vision system includes the following parts: light source, lens, industrial camera, picture acquisition card, visual processing software, sensor, computer channel, control unit, etc.

The core skills of machine vision are digital picture processing skills. Digital picture processing is to convert various picture signals into digital signals and use computers to process them. In a broad sense, digital picture processing skills can be regarded as a general term for various picture processing skills, which includes a series of tasks done using computers and other electronic equipment, Such as picture acquisition, acquisition, coding, storage and transmission, composition of the picture, and occur, draw the picture display, and output, drawing change, enhance, rehabilitation and reconstruction, feature extraction and measurement, with/without judging, area detection, orientation, Angle detection, dimension measurement, location, quantity, pattern matching, bar code identification, character identification, color to identify the policy Detection, expression and description, sequence picture correction, picture classification, representation and identification, all kinds of processing skills are related to each other, a practical picture processing system often combined with a variety of picture processing skills to achieve the desired results. Digital picture processing skills have the advantages of good reproducibility, high processing accuracy, high flexibility and wide application.