What functionality eliminates the need for continuous video recording in surveillance systems?

The functionality that eliminates the need for continuous video recording in surveillance systems is motion detection. This technology allows cameras to only actively record when movement is detected within their field of view. By focusing on specific events, motion detection reduces the volume of recorded footage and saves storage space and resources. This is particularly advantageous for monitoring large areas, as it ensures that operators are alerted only when significant activity occurs, rather than sifting through hours of footage where nothing eventful happens.

In contrast, continuous monitoring implies that cameras are always active and recording, which does not eliminate the need for continuous recording. Real-time feedback, while valuable for immediate response, does not pertain to the recording functionality directly. Lastly, 24/7 recording indicates that surveillance systems are capturing footage continuously, which goes against the idea of eliminating storage needs through selective recording. Thus, motion detection is the most effective and efficient solution for reducing unnecessary video storage.