Automatic machine vision detection of electronic components screening and detection of appearance defects, machine vision main functions, including size measurement, guidance and positioning of appearance defects detection, etc.

Generally speaking, the dimensional accuracy detection of appearance defects is more complicated and the detection technology is difficult. And appearance test automation is the integration of production and processing of detection based on machine vision system to adapt to a variety of environment, it can replace the traditional manual testing, product appearance online high-speed automation testing, product surface flaw defect characteristics of automatic identification, detection speed can reach production line synchronization of up to 10000 pieces per hour, equivalent to two to four skilled workers to work at the same time; And can be used in precision hardware, plastic, rubber, silica gel, precision ceramics, electronic components, hardware, fasteners and other industries.

The essence of machine vision algorithm is computer vision technology based on image analysis. It relies on CCD or CMOS industrial camera to collect target images. The camera will transform the collected image information into digital image information and transfer it to visual software to provide information needed for further decision-making through the analysis of the acquired image. Therefore, how to process this data is the real key to the machine vision process.

Image processing method, which includes image acquisition and enhancement, data coding and transmission, smoothing, edge sharpening, segmentation, basic feature acquisition, image recognition and understanding and other data. After these processing, the quality of the output image has been improved to a considerable extent, which not only improves the visual effects of the image, but also makes it easy for the computer to carry out specific analysis, processing and recognition of the image. Enterprise after the completion of the production and processing in the factory, it is necessary to detect electronic accessories, whether there is any errors with the leakage are hand no label stick, whether there is leakage will be a very good play screws and other automated visual inspection can pick out the unqualified products, usually the traditional approach is to use artificial line detection of two to four character, and use the new automated testing on-line detection device, Detection of electronic parts internal defect detection to realize the automatic identification of product surface defect characteristics, followed by low cost, accurate inspection, relatively fast speed, high efficiency, will not be tired and other advantages of efficient self-inspection operations.