How does the surveillance camera solve the backlight problem?
First, adjust the orientation of the entrance camera equipment, try to avoid direct sunlight from the outside, to a large extent to improve the entrance of the backlight appearance. For example, the bank door equipment needs to monitor the staff to monitor the entry and exit personnel, if we will be facing the entrance of the camera equipment, you can encounter a more severe anti-light appearance, will cause the camera to monitor the screen black, can not see what photos, At this time, the engineers will monitor the entrance of the camera flip, so that the camera lens out of the network of personnel, which is better than the role of the camera on the entrance device, you can better deal with backlight problems.
Second, always use the corresponding function of the camera, improve the backlit appearance. There are two kinds of cameras inside the security camera can be better to deal with the problem of camera backlight, one is a backlight compensation function of the camera, one is wide dynamic camera. Backlight compensation, also known as backlight compensation, is the screen dividends of several different areas, each area from the exposure. In some applications, the field of view can contain a very bright area, and the subject is included in the bright field surrounded by a picture of a bleak, no level. At this point because the AGC detects the signal level is not low, so the amplifier gain is very low, can not improve the brightness of the main screen, when the introduction of backlight compensation, the camera only the entire field of view of a sub-region, Area of the uniform signal level to determine the AGC circuit operating point.
In general, there are three main ways to deal with camera backlighting, one is to protect the camera as far as possible to prevent direct sunlight; the second is to use a corresponding improvement in the function of the camera, such as wide dynamic camera or backlight compensation camera; three can travel indoor light illumination, Reduce the contrast with outdoor light.
Monitor the camera when installed properly, the exact location of the installation is not properly, in the monitoring screen may appear backlight phenomenon, which is installed monitoring often encountered problems. Especially in the entrance to install the surveillance camera is more prone to this problem, aimed at this problem, in fact, has not yet fully found a very effective way, the following Xiaobian introduced three ways to improve the backlight appearance must have a role, everyone In the use of the process of induction on-site environment and many other conditions to think, and then seek the best disposal approach.
