With a random picture, we can see intuitively from the picture.
When the sensor detects the bottle, it will send an optical signal to the acquisition card.
Under the illumination of the light source, the camera receives the photographing instruction of the acquisition card,
Take a picture of the bottle to get the image data of the bottle.
These data can be saved as pictures and put on disk for later use.
It can also be added directly to the memory,
The so-called processing is a series of operations such as feature enhancement, speckle analysis and AOI extraction.
Then judge whether the bottle is defective, whether it is full of liquid and other production requirements.
This is a complete visual inspection system.
Mainly includes: 1, light source. 2. camera. 3. Acquisition card. 4. computer. 5. Image processing software.
However, in actual design or application, there is no uniform standard for the composition of visual system.
For example, the light source may be omitted.
For example, the camera and the acquisition card are integrated into the camera.
For example, the camera, acquisition card, computer and software are all integrated for you, and the smart camera is named.
The above introduction should be able to understand the visual inspection system more intuitively.
2. Charge coupled devices
As for adding a CCD in front, when I first came into contact with vision, I blurted out that CCD was quite tall.
I think CCD is industrial vision, but it is actually just a sensing device.
The imaging sensor materials in the lens are divided into CCD and COMS.
But now we will choose more CMOS cameras, and sex can be used cheaper.
Let's extract the meaning of these two abbreviations.
Charge couple device image sensor,
CMOS: complementary metal oxide semiconductor,
Like CCD, it is a semiconductor, which can record the light changes in the camera.
I wish I could help you,
As for the visual processing software,
I will also share the introductory tutorial later.
Welcome to pay attention to communication.
CCD machine vision inspection is to use machines instead of human eyes to make some judgments and measurements.
Accurately speaking, it is machine vision positioning detection. Vision system refers to transforming the photographed object into image information through machine vision equipment, that is, camera devices.
It is transmitted to a special image processing system and converted into digital signals according to the distribution, brightness and color information of pixels. The image system performs various operations on these signals, extracts the characteristics of the target, and then controls the field equipment to perform a series of operations according to the judgment results.
At present, it has been widely used in electronics, packaging, printing, chemical industry, food, plastics, textile and other industries.
At present, there are many companies doing visual inspection in China, and one company in Shenzhen, Quandi Technology, is ok, especially the software is very strong, and it can detect tens of thousands a day, and the detection range is quite wide, which greatly reduces the labor cost.
Visual inspection is to measure and judge with machines instead of human eyes. Visual inspection means that the captured objects are converted into image signals by machine vision products (that is, image pickup devices, which are divided into CMOS and CCD), transmitted to a special image processing system, and then converted into digital signals according to pixel distribution, brightness, color and other information; The image system performs various operations on these signals, extracts the characteristics of the target, and then controls the action of the field equipment according to the discrimination result. This is a valuable mechanism for production, assembly or packaging. It has immeasurable value in detecting defects and preventing defective products from circulating to consumers.