What is a common metric used to evaluate video surveillance performance?

Bitrate is a common metric used to evaluate video surveillance performance because it directly relates to the amount of data processed in a given time period and impacts the quality of the video. It determines how much information is transmitted per second, which is crucial for maintaining video clarity and reducing latency during streaming. A higher bitrate generally results in better video quality, as it allows for more detail and smoother motion representation.

In the context of video surveillance, a balance must be struck between bitrate and storage capacity, as higher bitrates consume more storage and bandwidth. Therefore, understanding bitrate is essential for designing effective surveillance systems that meet the requirements for both quality and infrastructure capabilities.

Resolution, frame rate, and color depth are also important metrics, but they do not encompass the overall data transmission efficiency and quality evaluation as comprehensively as bitrate does, making bitrate the more pivotal measure in assessing video surveillance performance.