Axis Communications ANVE - Axis Network Video Exam

The main benefit of using Power over Ethernet (PoE) is cost reduction in installation. PoE allows network cables to carry both data and power, eliminating the need for separate power lines and reducing the amount of cabling required. This simplifies installation, reduces material costs, and allows greater flexibility in camera placement. Axis Communications notes that PoE significantly cuts down on installation expenses by streamlining the infrastructure needed for network devices.

Video analytics applications detect movement perpendicular to the camera more easily than movement toward or away from the camera. This is because objects moving perpendicular to the camera create more significant changes in the pixel patterns, making it easier for the analytics software to detect and analyze the movement. Movement toward or away from the camera results in smaller changes in pixel patterns, which can be harder to detect accurately. References: Axis Communications documentation on video analytics and movement detection.