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How is the noise of industrial cameras produced
Author:Administrator   Published in:2019-09-06 15:50

There are many types of noise in our daily lives, such as cars that are passing by, people's noise, and a variety of noise sources. There is also noise in industrial cameras. So what does the noise in industrial cameras mean? How do you generate them? Let's take a look at the industrial camera manufacturer, TEO.

  How is the noise of industrial cameras produced?

  First of all, there are two main reasons for the noise generated by industrial cameras. One is that the temperature on the photosensitive element is too high, and a lot of messy charges are generated, which causes noise. Second, the shooting environment is bad, and the photosensitive element receives too little information, but in order to ensure photos. For the integrity, the camera must calculate some pixels to fill into the photo, so the noise will increase.

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  The noise of an industrial camera refers to a signal outside the actual imaging target that is not desired to be acquired during imaging. According to the European camera test standard EMVA1288, the noise in the camera is generally divided into two categories: one is the statistical fluctuation noise corresponding to the Poisson distribution caused by the effective signal, also called shot noise. ), this noise is the same for any camera, inevitably, especially the determined formula. (ie: the square of the noise = the mean of the signal). The second type is the signal-independent noise inherent in the camera. It is the noise caused by the image sensor readout circuit, camera signal processing and amplification circuit, etc. The inherent noise of each camera is different. In addition, for digital cameras, quantization noise is generated when analog conversion is performed on a video signal, and the higher the number of quantization bits, the lower the noise.

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  How is the noise of industrial cameras produced? I believe everyone has seen a certain understanding here. In fact, due to the continuous development of CMOS circuit noise reduction technology in the past two years, the quality of CMOS sensors is getting higher and higher, and industrial camera noise begins to gradually reduce image quality. The above is the introduction from the industrial camera manufacturer - TEO Xiaobian. Teo Dior's products mainly include: full range of industrial cameras, industrial image measurement special cameras, laser cutting special cross line cameras, microscopic imaging dedicated image collectors, ultra high definition pathology microscopic imaging conference system, pathological microscopic image analysis and remote consultation system. If you need it, please feel free to contact us.

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