With the development trend of the times, the development field of the camera module is expanding. For example, in the very popular live broadcast industry, the outbreak of the epidemic has made the camera module develop rapidly in the live classroom teaching, live conference and other fields. At present, the camera module has developed rapidly in the terminal equipment of the live broadcast industry.
The so-called "sharpening the knife without mistaking the firewood" workers want to be good at their work. If they want to get rapid development in the new industry and the live broadcasting industry, the camera module is one of the sharp tools, which also makes the camera module manufacturers get good results. Therefore, the USB camera module of the live broadcasting equipment needs to be understood clearly if they want to get the effect and master the market demand.
From the ranking of camera module manufacturers, Xiaobian can know how to define the zoom of camera module. The zoom of USB camera module is divided into two types: digital zoom and optical zoom.
The digital zoom of the camera module is based on the CPU inside the camera module, The original "interpolation" solution was used to enlarge part of the sharpness on the sensor to all the interfaces, so as to enlarge the wooden hole. This kind of method is like using the image processing mobile phone software to enlarge the total area of the image. Because the focal length of the lens has not changed, the product quality of the image is worse than that under normal conditions. Therefore, the digital zoom of the USB camera module is not of great practical significance.
The optical zoom is caused by the change of the lens, the subject and the focus of the camera module. As the specific case of the image plane moving in the horizontal direction, the angle of view and the focal length of the camera module will change. The longer-term scenery will become clearer and clearer, making people feel like the layer of the subject.
With the support of face recognition technology, the current camera module is also more and more widely used in terminal equipment. For example, the current security gate, intelligent access control and advertising machine can apply the USB camera module for face recognition.
