What is the difference between analog cameras and coaxial cameras?

The difference between analog cameras and coaxial cameras: Analog cameras can convert the analog video signals generated by the video capture device into digital signals, and then store them in the computer. The video signal captured by the analog camera must be converted into a digital mode through a specific video capture card and compressed before it can be converted to a computer for use. Digital cameras can directly capture images and then transmit them to the computer through serial, parallel or USB interfaces.

A camera (CAMERA or WEBCAM) is a video input device, a type of closed-circuit television, and is widely used in video conferencing, telemedicine and real-time monitoring. Cameras generally have basic functions such as video photography, transmission and static image capture. After collecting images through the lens, the photosensitive component circuit and control components in the camera process the images and convert them into digital signals that can be recognized by the computer. It is connected through a parallel port and USB, and after being input to the computer, the image is restored by the software to form a picture.

Cameras can be divided into two categories: digital cameras and analog cameras. A digital camera can convert the analog video signal generated by the video capture device into a digital signal, and then store it in the computer. The video signal captured by the analog camera must be converted into a digital mode through a specific video capture card and compressed before it can be converted to a computer for use. Digital cameras can directly capture images and then transmit them to the computer through serial, parallel or USB interfaces. The cameras in the computer market are basically digital cameras, and the digital cameras are mainly USB digital cameras that use new data transmission interfaces. Most of the products on the market are of this kind. In addition, there is a product used with video capture cards, but it is not mainstream yet. Due to the rapid popularity of personal computers, the overall cost of analog cameras is high, and they cannot meet the BSV LCD splicing screen interface. The transmission speed of the USB interface is much higher than the speed of the serial port and parallel port, so digital cameras with USB interfaces are on the market.