The definition of the direct connection monitor of the surveillance camera is better than that of the direct connection monitor of the hard disk video recorder. Why? What kind of DVR does the 600-line

The definition of the direct connection monitor of the surveillance camera is better than that of the direct connection monitor of the hard disk video recorder. Why? What kind of DVR does the 600-line camera have? 1. The camera is analog. After entering the video recorder, the analog-to-digital conversion is realized. When the video signal returns to the analog monitor, it will be converted from digital to analog again. Of course, the picture quality is much lower.

2. It can only be D 1.

What quality image is recorded depends on the camera and video recorder.

Video recorders used in the security industry need small files to save storage space. The clarity of the image can be achieved by adjusting the camera position and increasing the number of cameras.

3. There is little difference between video recorders and many brands, but the technical indicators of the algorithm are basically the same. We just choose stability and after-sales service.

Regarding preview definition, if you have a particularly high demand for preview definition, you should have an analog video matrix switching system in parallel with the video recorder system. In this way, the imaging transmission and display system is analog and looks the clearest. Note that the display uses a traditional picture tube instead of an LCD. This is just icing on the cake and has a great impact on the cost. It's up to you.

4. Personally, it doesn't mean much. After all, the imaging quality is not that high. A little higher is not interesting.

5.VGA is very clear. One transformation process is missing, you know.

6. Monitoring system imaging is a systematic project. Imaging, transmission and display have a common influence on image quality, and the final quality depends on which one is short board.

The monitor-level color camera has reached 600 lines, which is already remarkable. If you want to display these 600 lines completely, you should have corresponding display equipment, that is, professional monitors, such as those produced by Sony Panasonic.

In fact, the human eye can't tell 330 lines from 600 lines, which is also the reason why many imported cameras have low marks. However, the human eye can distinguish almost infinite colors. A good camera has better color reproduction ability. If you can reasonably adjust the brightness, contrast and color saturation of the display device, your monitoring system will usually be completely new.

Another point is that the installation position of the camera is very particular, and the backlight and other light will interfere with the color and size of the monitored object.

Sometimes kung fu is out of line, and Qingming is there.