The installation position of the surveillance camera at the current angle can be divided into different angles: flat angle, down angle, and elevation angle.
Horizontal installation: The installation height of the surveillance camera is close to the height of an ordinary person's face, fully showing the details of facial features. It is the preferred angle for the installation of the surveillance camera at the entrance and exit of the building. For indoor installation, the installation distance, position, and height can be adjusted to achieve a flat angle. With the emergence of three-axis and two-axis adjustable hemispheric surveillance cameras, most surveillance cameras can be installed at a close to a flat angle by wall-mounted installation. The disadvantage is that the concealment is not strong, it is easy to damage the scene environment and landscape, and it is easy to be affected by the light environment.
Pitch angle installation: This kind of installation method often adopts ceiling or hoisting method for surveillance cameras. Its advantage is that it is easy to install, concealed, and can avoid the influence of direct reflection of part of the light. In this way, it should be noted that the angle between the surveillance camera and the face should not be too large, otherwise the overhead image will be larger and the facial features will be less. The disadvantage is to reduce the recognition rate.
Elevation angle installation: more special, often appear in some sinking square entrances and exits, basement entrances and exits, entrances and exits of parking lots, etc. This method is a special method chosen due to site needs. In this way, the influence of various light sources must be considered. Avoid light interference. The protection of surveillance cameras should also be considered in detail. Surveillance cameras should choose products that are more mature in light processing.
The above installation method, the best method in practice is flat angle installation, it can show more facial details, it is recommended that the maximum viewing angle does not exceed 15 degrees. When the on-site environment is restricted, in order to obtain the best effect, the installation distance can be appropriately selected to adjust the object distance to be ideal.
