"Camera, also known as computer camera and computer eye, is a kind of video input equipment, which is widely used in video conferencing, telemedicine, real-time monitoring and other fields. Ordinary people can also have video and audio conversations and communicate with each other on the Internet through the camera. In addition, people can also use it for various popular digital images and audio-visual processing. "
At present, cameras on the market are often divided into CD cameras and CMOS cameras. Advantages of using CD camera: high imaging quality. Disadvantages of using CD camera: 12V power supply, high power consumption and high price. Advantages of CMOS camera: 9V power supply, low power consumption and low price. Disadvantages of CMOS camera: the imaging quality is not as good as that of CD camera.