Detailed explanation of the classification of industrial cameras

As the most important component in machine vision, industrial cameras are widely used in many industries such as intelligent transportation, scientific research institutes, hospitals and schools, factories and mines, and cultural relic appraisal units. There are also many core components, and industrial cameras can be divided into many types according to different classifications. Next, Dior Technology, a Shenzhen industrial camera manufacturer, will give you a brief introduction to the classification of industrial cameras.

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1. 1. Classification by output mode: analog camera, digital camera

   According to the different data output modes of cameras, they can be divided into analog cameras and digital cameras. Analog cameras output analog signals and digital cameras output digital signals. Analog cameras and digital cameras can be further subdivided. For example, Weishi image industrial cameras include: USB 2.0 interface, IEEE 1394 a / Fire Wire interface, and Gigabit Ethernet interface according to data interface. Analog cameras are divided into two types: progressive scan and interlaced scan. Interlaced scan cameras also include standard formats such as EIA, NTSC, CCIR, and PAL.

2. 2. Classification by target surface type: area scan camera, line scan camera

   Industrial cameras are distinguished not only by sensor technology, but also by sensor architecture. There are two main sensor architectures: area scan and line scan. Area scan industrial cameras are typically used where the output is displayed directly on a monitor. Line scan industrial cameras are used for imaging continuously moving objects or where continuous high-resolution imaging is required. A natural application of line scan industrial cameras is to image continuous products in still images (Web Inspection), such as textiles, paper, glass, steel plates, etc. At the same time, line scan industrial cameras are also suitable for non-still image detection in the electronics industry.

3. 3. Color camera, black and white camera:

   The black-and-white camera directly converts the light intensity signal into the grayscale value of the image, generating a grayscale image; the color camera can obtain the light signals of the three components of red, green, and blue in the scene and output a color image. Color cameras can provide more image information than black and white cameras. There are two main methods for realizing color cameras, prism spectroscopy and Bayer filtering. The prism spectroscopic color camera uses an optical lens to separate the R, G, and B components of the incident light, converts the light signals of the three colors into electrical signals on three sensors, and finally synthesizes the output digital signals to obtain a color image.

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4. 4. CCD camera, CMOS camera

   The main difference between the two industrial camera chips is the way they convert light into electrical signals. For CCD sensors, light shines on the pixel, and the pixel generates charges. The charges are transmitted through a small number of output electrodes and converted into current, buffering, and signal output. For CMOS sensors, each pixel completes the conversion of charge to voltage by itself and generates a digital signal at the same time.

The above is the introduction to the classification of industrial cameras by Dior Technology, a Shenzhen industrial camera manufacturer. Since industrial cameras have many core parameters, they can be divided into different types of industrial cameras according to different parameters. In addition to the above introduction, industrial camera interfaces can also be divided into GIGE industrial cameras, USB industrial cameras, 1394 industrial cameras, etc.