PTZ Camera
Pan-tilt-zoom (PTZ) cameras are built with mechanical parts that allow them to swivel left to right, tilt up and down, and zoom in and out of a scene. They’re typically used to monitor wide open areas requiring a 180- or 360-degree view, and deployed in guard stations where active personnel can operate them through a remote camera controller. Depending on the camera or software, they can also be set to automatically follow motion-triggered activity or adhere to a pre-set schedule. PTZ cameras are generally implemented in tandem with a larger surveillance system, in which the PTZ tracks movement while a fixed camera takes detailed shots.
Features and Advantages of PTZ Cameras:
- Large Field of View:Â PTZ cameras are used to monitor a large area, and often recommended to use in conjunction with a fixed camera to avoid gaps in coverage. Depending on the model, cameras can move anywhere between zero pan/tilt and the full 360 degree pan/180 degree tilt. Some solutions also have digital pan and tilt, which allows for video to be adjusted after recording – though the resulting video would be grainer and lower res.
- Motion-Based Auto Tracking:Â Auto tracking is a function that enables PTZ cameras to adjust their field of view to follow moving objects automatically. The use case for this function is typically best applied in quiet areas with minimal movement (for example, a museum after closing).
- Remote Camera Control: Conventional PTZ cameras can be manually and remotely adjusted to track suspicious activity. This allows users to change the camera’s field of view without having to go onsite. A few common control mechanisms include: Mobile apps, joystick controls, and computer apps which all allow operators to adjust cameras with the control they prefer.
- Zoom Capabilities:Â Most PTZ cameras support optical zoom, which is used to view and capture faraway objects like license plates or faces. Optical zoom (ie: 20x, 30x, 40x) refers to the maximum focal length divided by the minimum focal length – the larger the number, the further the zoom.
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