Axis Communications ANVE Actual Questions

PTZ (Pan-Tilt-Zoom) cameras are typically used for applications such as autotracking, active gatekeeper, and guard tour. Autotracking allows the camera to follow moving objects within its field of view automatically. Active gatekeeper enables the camera to move to a preset position when motion is detected in a specific area. Guard tour is a function that allows the camera to patrol between preset positions at scheduled intervals. These features enhance surveillance capabilities and are commonly implemented in PTZ cameras. Axis Communications' documentation on PTZ camera functionalities details these applications.

The background of the scene is slightly out of focus due to a shallow depth of field. Depth of field refers to the range of distance within a photo that appears acceptably sharp. A shallow depth of field results in a narrow focus area, causing objects outside this area to appear blurred. This can be influenced by the aperture setting of the lens, the focal length, and the distance to the subject. Axis documentation on camera setup and focus adjustments provides guidance on managing depth of field to ensure optimal image clarity.

Continuous recording ensures that no incidents are missed by capturing video footage continuously, without any gaps. This is crucial in security applications where it is important to have a complete record of events, enabling thorough investigations and evidence collection. Continuous recording ensures that every moment is documented, providing comprehensive coverage and peace of mind. References: Axis Communications guidelines on video recording and storage.

Variable bitrate (VBR) is a video encoding method that adjusts the bitrate according to the complexity of the video scene. The primary advantage of VBR is that it maintains image quality, even in high-motion scenes, by allocating more bitrate when needed and reducing it during simpler scenes. This ensures consistent image quality while optimizing the use of bandwidth. Axis Communications’ documentation on video compression and bitrate management confirms the benefits of VBR in maintaining image quality.