What does the term "ROIs" refer to in relation to Zipstream?

The term "ROIs" stands for "Regions of Interest." In the context of Zipstream, which is a technology used in Axis network video products to optimize bandwidth and storage, ROIs play a critical role in enhancing the efficiency of video data transmission.

Zipstream technology focuses on maintaining the quality of crucial areas within a video frame—these are the Regions of Interest—while reducing the quality of less important areas. This method allows for efficient use of bandwidth by ensuring that vital details where motion is expected (e.g., faces, license plates) are preserved, while less significant parts of the scene can be compressed more aggressively without significant loss of valuable information. Hence, understanding ROIs is essential for effective video surveillance design, as it directly impacts the clarity and intelligibility of important visual details in the recordings.

The other options—Rate of Inputs, Range of Inputs, and Resolution of Images—do not relate directly to the specific functionality offered by Zipstream regarding video quality and bandwidth management. Understanding this distinction is key to maximizing the performance of video surveillance systems using Axis technology.