Axis Communications Updated ANVE Exam Questions and Answers by jannah

Closing the aperture at a fixed focal length increases the f-number (aperture value), resulting in a longer depth of field. This means that a greater portion of the scene will be in focus, both in the foreground and background. A higher f-number indicates a smaller aperture, which allows less light to enter the lens but enhances the sharpness and clarity of the image over a larger depth. References: Axis Communications camera optics and image quality documentation.

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Maintenance is essential for ensuring the optimal performance of outdoor cameras running video analytics. Regular maintenance tasks include cleaning the camera lens, checking and updating firmware, inspecting connections, and verifying that analytics software is functioning correctly. These activities help maintain image quality and ensure the accuracy and reliability of the video analytics. Axis installation and maintenance guides recommend routine maintenance to prevent performance degradation and extend the lifespan of the equipment.

Accelerometers are used in Axis cameras primarily for shock detection. They detect sudden movements or impacts that might indicate tampering or vandalism. When a shock is detected, the camera can trigger alerts or initiate protective actions to safeguard the device and maintain surveillance integrity. Axis technical specifications detail the use of accelerometers in various models for enhanced security through shock detection.

OptimizedIR technology in Axis cameras refers to the intelligent adaptation of IR illumination to the camera's field of view. This ensures even illumination across the entire scene, reducing overexposure and underexposure caused by traditional fixed IR lights. The IR LEDs adjust their intensity and spread according to the zoom level and scene requirements, providing optimal image quality in low-light conditions. Axis documentation highlights OptimizedIR as a feature that enhances night-time surveillance by ensuring balanced lighting.