Which is an advantage of the H.264 compression standard?
The H.264 compression standard is highly efficient and can significantly reduce bandwidth and storage requirements compared to Motion JPEG. This is because H.264 uses both intra-frame and inter-frame compression, which reduces the amount of data needed to represent video by eliminating redundant information between successive frames. Axis Network Video documentation states that H.264 can reduce the required bandwidth and storage by up to 50% or more in typical surveillance scenarios, making it an advantageous choice for video compression in surveillance systems.
An installer needs a camera to monitor a hallway in an office complex. The hallway is 2.5 m (8 ft 2 in) wide. The customer wants to be able to identify people (80 pixels per face). What is the minimum resolution needed to meet this requirement?
To identify people with 80 pixels per face in a hallway that is 2.5 meters wide, a minimum resolution of 1280x720 (720p) is needed. This resolution ensures sufficient pixel density to capture detailed facial features necessary for identification purposes. Given the width of the hallway and the required pixel density, 720p provides the necessary coverage and detail.
How does the AXIS Design Tool allow users to estimate the effects of scene complexity and motion on bandwidth and storage usage?
The AXIS Design Tool helps users estimate bandwidth and storage usage by using a statistical model based on the selected camera model. This tool takes into account factors such as scene complexity and motion to provide accurate estimates, enabling users to plan their surveillance system more effectively. [Reference: Axis Communications - AXIS Design Tool User Guide]
A convenience store needs a camera to cover the entrance. Identification is needed at 80 pixels per face. Given that the scene is 2 m (6 ft 7 in) wide, which of these resolutions is the minimum one needed?
To achieve identification at 80 pixels per face for a scene that is 2 meters (6 feet 7 inches) wide, a minimum resolution of 1280 x 720 is needed. This calculation ensures that each face captured in the frame meets the pixel density requirement for clear identification purposes.
When using the view area functionality, each view area has its own video stream and (Choose two)
When using the view area functionality in Axis cameras, each view area can have its own independent video stream. Additionally, each view area can have its own exposure control setting and text overlay setting. This allows for customized video streams with different exposure settings tailored to specific areas within the camera's field of view, as well as unique text overlays for each view area, providing flexibility in video management and presentation.
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