What are the advantages of digital video over analog video?

Simulation** means that each frame of the image is a real image signal of the natural scenery acquired in real time. The TV and movies we see in our daily lives belong to the category of simulation. Analog signals are low-cost and reducible.

Good and other advantages, **The picture often gives people an immersive feeling. However, its biggest disadvantage is that no matter how good the recorded image signal is, after a long period of storage, the quality of the signal and the picture will be greatly reduced; Or after multiple copies, the distortion of the picture will be obvious.

It can also increase special effects, etc.

4. There is no need for huge wiring work, which reduces the amount of construction.

Compared with analog monitoring, digital monitoring has the following outstanding advantages:

1. It is convenient for computer processing2. It is suitable for long-distance transmission4. Improve the quality of images and monitoring efficiency

Digital surveillance is the elephant head that generates digital information that can be processed directly. Relatively speaking, analog monitoring is mature ,..However, as digital technology becomes more and more mature, the advantages of digital surveillance are becoming more and more prominent.

The so-called analogue** is to use electronic methods to transmit and display moving scenes or still images, that is, to support the transmission and display of image and sound information by establishing changes on electromagnetic signals, and most home televisions and video recorders display analogue**. Analog films, such as still transparencies or generally motion films, support the transmission and broadcast of image information by establishing the color variation of pigments on a single piece of acetate film, and most analog films also support optical sound information on tracks adjacent to the frame. If you want to use analog and analog movie signals in desktop compositing software, you must first digitally transfer the analog and analog movie signals to your computer, because the computer can't process analog signals, in other words, it can only process digital signals.

Digital ** refers to the use of computer digital technology to process the moving image taken with video tapes, and after such processing, whether it continues to use video tape projection or does not use video tape projection can be called digital **. So it is not a format, but a medium, within which many file formats exist. Numbers are usually recorded on tape and are usually released on disc, especially on discs.

Of course, there are exceptions, some new cameras can directly record the collected content on the *** or hard disk. Cameras with digital8 record digital** on the usual analog videotape.