What should I do to monitor the backlit "glare"? Three Ways to Improve the Backlighting of Monitor Screens
2020-06-04 16:14:25
When people's security awareness becomes stronger and stronger, surveillance has become one of the most widely used systems in security systems, and surveillance cameras are commonly installed in some public locations to ensure security. The biggest problem encountered when installing the camera at the outlets of the outlets is that backlighting will occur on the monitoring screen. Backlight control is too "glare" how to do? This article describes the three methods are to improve the backlight phenomenon has a certain effect, in the use of the process still need to be based on the site environment and other conditions to consider, and comprehensively seek the best solution.
Method One: Cameras Avoid Direct Sunlight
Adjust the installation location of the entrance camera, flip-chip may be a good choice. For example, a camera at the entrance of a certain outlet needs to monitor the incoming and outgoing personnel. When the camera is installed facing the entrance and exit, serious backlighting may be encountered, causing the monitoring screen to appear dark. At this point, if we flipped the camera and put the lens on the person walking out of the network, the monitor screen would avoid direct sunlight and could solve the back light problem.
Method Two: Select a Camera with Improved Backlighting
In the range of security camera types, there are two types of cameras that can solve back light problems, cameras with backlight compensation and wide dynamic cameras. Backlight compensation can divide the picture into several different areas, each of which is exposed separately. When the screen is dark and non-hierarchy, backlight compensation is introduced, and the subject picture on the monitor is clear, which reduces the subjective brightness difference between the background picture and the subject picture, so that the visibility of the entire scene is improved. The wide dynamic camera can be exposed twice at the same time. After synthesis, the bright and dark objects on the screen can be seen at the same time. Compared with the backlight compensation, the wide dynamic technology is better.
Method 3: Improve Indoor Illumination
The reason for the back light phenomenon is that the contrast of the light intensity in the monitoring range is too great, so the black and white level contrast of the formed image becomes stronger. If you improve the illumination of the indoor light source, enhance the indoor light, and reduce the contrast between the interior and the external light, you can improve the backlight phenomenon.
Method One: Cameras Avoid Direct Sunlight
Adjust the installation location of the entrance camera, flip-chip may be a good choice. For example, a camera at the entrance of a certain outlet needs to monitor the incoming and outgoing personnel. When the camera is installed facing the entrance and exit, serious backlighting may be encountered, causing the monitoring screen to appear dark. At this point, if we flipped the camera and put the lens on the person walking out of the network, the monitor screen would avoid direct sunlight and could solve the back light problem.
Method Two: Select a Camera with Improved Backlighting
In the range of security camera types, there are two types of cameras that can solve back light problems, cameras with backlight compensation and wide dynamic cameras. Backlight compensation can divide the picture into several different areas, each of which is exposed separately. When the screen is dark and non-hierarchy, backlight compensation is introduced, and the subject picture on the monitor is clear, which reduces the subjective brightness difference between the background picture and the subject picture, so that the visibility of the entire scene is improved. The wide dynamic camera can be exposed twice at the same time. After synthesis, the bright and dark objects on the screen can be seen at the same time. Compared with the backlight compensation, the wide dynamic technology is better.
Method 3: Improve Indoor Illumination
The reason for the back light phenomenon is that the contrast of the light intensity in the monitoring range is too great, so the black and white level contrast of the formed image becomes stronger. If you improve the illumination of the indoor light source, enhance the indoor light, and reduce the contrast between the interior and the external light, you can improve the backlight phenomenon.
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