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What is the difference between human eye detection and machine vision detection in real life?

2022-03-15 14:21:25
times

Human vision is highly adaptable, capable of identifying targets in complex and changing environments. It has advanced intelligence, and uses logical analysis and reasoning ability to identify changing targets and summarize rules. Although human vision has strong color discrimination ability, it is very easy to be affected by people's psychology and cannot be well quantified. And the gray resolution ability is also very poor, generally can only resolve 64 gray levels, in the spatial resolution ability can not achieve good results, can not see the small target.

  

  

Machine vision is different, machine vision gray resolution is very strong, for now, generally can use 256 gray level, acquisition system with 10bit, 12bit, 16bit gray level. Now there are 4K*4K surface array cameras and 8K linear array cameras. By equips various optical lenses, objects as small as micrometers and as large as celestial bodies can be observed. Machine vision has low environmental requirements and is highly adaptable. In addition, protection devices can be added according to needs. Machine vision has a fast shutter time of around 10 subtleties, tells the camera frame rate of more than 1,000, and the processor is getting faster. Although artificial intelligence machine neural network technology can be used, but the intelligence of machine vision is very poor, can not well identify the changing target, restricted by hardware conditions, the current general image acquisition system for color resolution is poor, but has the advantage of quantification. With the continuous development of machine vision, the use of modern advanced control technology, combined with industrial lenses, the imaging quality and detection standards of objects have been greatly improved.

  

  

Industrial lens plays the role of the eye in the machine vision system. The basic function of the lens is to realize the beam transformation. In the machine vision system, the lens is mainly to image the target on the light sensitive surface of the image sensor. The quality of the lens directly affects the overall performance of the machine vision system. Reasonable selection and installation of the lens is an important part of the design of the machine vision system. The imaging quality of different industrial lenses varies greatly, even for the same type of industrial lenses. These differences depend on the difference in material, processing accuracy and lens structure, and also lead to the huge difference in the price of different grades of industrial lenses from hundreds of yuan to tens of thousands of yuan. Many lens design and production manufacturers want to enter the high-end product market, must have higher requirements for products.


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