In 1916, Einstein proposed the theory of stimulated emission of light, and human beings began to understand laser light. In the following decades, with the advancement of science and technology and the development of the times, human beings have gradually deepened their understanding of lasers. This facility, which was only used in military and other fields, began to appear in front of the public.

Abstract: The American Society of Manufacturing Engineers (SME) Vision Branch and the American Robot Industry Association (RIA) Automation Vision Branch define machine vision as: the automatic reception and processing of an image of a real object through optical devices and non-contact sensors , to obtain the required information or to control the movement of the robot/machine. In layman's terms, it is to use a machine to replace the human eye for measurement and judgment.