Machine vision is a technological innovation, relying on the expanding industry demand, and becoming a rising emerging industry. China's electronic manufacturing and OEM manufacturers are purchasing a large number of automation equipment to replace labor in the past few years to cope with the growing shortage of labor in China, which will reach a climax in the next few years.
For biological vision, people have long noticed that almost all creatures with vision have two eyes, and when we use our eyes to observe objects at the same time, we also have a sense of depth or distance. The reason why stereoscopic films have a realistic sense of depth is also to imitate the principle of stereoscopic vision.
machine vision
When shooting 3D stereoscopic films, two cameras are used to shoot at the same time, while during projection, the images taken by the two cameras are projected onto the screen at the same time, and the principle of polarized light is used to let people's eyes see the images taken by the left and right cameras respectively, so that people can feel the true three-dimensional scene.
In the computer stereo vision system, the industrial camera can also be used to obtain two images of the same scene from different angles, and then the three-dimensional shape of the scene can be reconstructed by the computer using the three-dimensional reconstruction principle to recover the spatial position information of the object.
1、 Machine vision definition
Machine vision is to measure and judge with machine instead of human eyes.
Visual system composition
2、 Characteristics of machine vision
1. Automation level: improve production speed and detection rate of defective products;
2. Quality assurance: unified product quality standards;
3. Cost reduction: reduce labor and management costs.
3、 The application of machine vision mainly includes detection and robot vision
1. Detection: It can also be divided into high-precision quantitative detection (such as cell classification of micrograph, measurement of size and position of mechanical parts) and qualitative or semi-quantitative detection without measuring instrument (such as product appearance inspection, identification and positioning of parts on assembly line, defect detection and assembly integrity detection).
2. Robot vision: It is used to guide the operation and action of the robot in a large range, such as picking the workpiece from the disorderly workpiece pile sent by the hopper and placing it on the conveyor belt or other equipment according to a certain orientation (i.e. the hopper picking problem). As for operation and action in a small range, tactile sensing technology is also needed.
In addition:
1. Automatic optical inspection
2. Face recognition
3. Driverless vehicle
4. Product quality grade classification
5. Automatic inspection of printing quality
6. Character recognition
7. Texture recognition
8. Tracking and positioning
And other applications of machine vision image recognition.
"Made in China 2025" will drive the machine vision industry
Although machine vision started relatively late in China, and the concentration of the industry is not very high. At the beginning, it was mainly the agency of foreign brands by some agents. Now, many dealers have started to launch free brand products, but there are obvious differences in industry distribution, channel distribution and mature automation products. The relatively mature automation products of domestic machine vision are of low quality and technical content, and the market is far from saturated. In view of this, Sharp Vision Intelligence has continuously researched its own products, updated its algorithm, and created an integrated model from machine vision detection to robot sorting, which can better meet the market demand.
At present, there are three main types of machine vision market in China. One is the old foreign machine vision enterprises; Second, state-owned enterprises; Third, emerging private enterprises with independent research and development. Due to the gap in technology and other aspects, there is also a gap in price to some extent. Although from the perspective of technology, the machine vision independently developed in China still needs a period of time to catch up, but it has also accumulated considerable advantages in practical applications.
Machine vision is a technological innovation, relying on the expanding industry demand, and becoming a rising emerging industry. China's electronic manufacturing and OEM manufacturers are purchasing a large number of automation equipment to replace labor in the past few years to cope with the growing shortage of labor in China, which will reach a climax in the next few years. Taiwan-funded factories have chosen to improve the degree of automation, and the climax of automatic reloading will come in the next 2-3 years, which will certainly bring new growth points for the application of machine vision products in this industry. Experts predict that with the shift of global manufacturing centers like China, the Chinese market will gradually become the focus of international manufacturers, and the Chinese machine vision market will have a lot of room for development in the future. With the proposal of Made in China 2025, in recent years, it will become the explosion year of the machine vision industry, and the market size of the Chinese machine vision industry will maintain stable and rapid growth.