Machine Vision Applying Character Recognition Detection

  With the rapid development of computer and machine vision technology, machine vision character recognition detection technology has developed rapidly around the world. Since fully automatic machine vision character recognition detection technology not only overcomes the shortcomings of manual detection methods, but also has the advantages of fast detection and recognition, high accuracy, reliable and stable detection results, more and more processing plants have begun to introduce fully automatic character recognition Identification detection system. At present, the system has been successfully used in quality inspection in chip manufacturing, AOI, food and other fields. The figure below is an example of automatic recognition of product numbers in typical character industrial products.

The machine vision character recognition detection system uses advanced image vision detection technology to achieve real-time and comprehensive quality detection of high-speed moving industrial products. When the system is equipped with a high-performance industrial digital camera, the camera collects surface images of industrial products and transmits the image data to the image processing system. The image processing system preprocesses each image, extracts the character area, and identifies the character area. , then the waste alarm information and control signals are output, and the waste products are removed or classified by the mechanical system.

In the machine vision character recognition detection system, being able to accurately identify character areas and identify them is the core of the entire system. At present, its application fields mainly involve the following aspects:

1. Medical aspect: Test the trademark, production date, and product batch number of the drug;

2. Semiconductor: Verify the packaging code of wafers and ICs;

3. Machine manufacturing: Control the quality of machine parts printed with characters;

4. Logistics: classifying, tracking mail and packages;

5. Car: Read characters and numbers on car parts.