What is the function of DGOP in Zipstream technology?

DGOP, which stands for Dynamic GOP (Group of Pictures), is a crucial component of Axis' Zipstream technology, specifically designed to optimize video encoding efficiency. The primary function of DGOP is to manage image quality and bandwidth usage by preventing the unnecessary transmission of redundant I frames when there is no significant activity in the scene being monitored.

In typical video compression, I frames serve as key reference points for the video stream. However, in scenarios where minimal motion occurs, sending multiple I frames can waste bandwidth and storage without contributing meaningful information to the viewer. By utilizing DGOP, Zipstream effectively reduces the frequency of these I frames during periods of inactivity, allowing for better bandwidth utilization and storage efficiency without compromising on the quality of important frames when there is activity.

This strategy not only aids in conserving network resources but also ensures that when changes or movements do occur, the system can still produce high-quality video by efficiently incorporating the necessary frames at the appropriate times. Overall, this intelligent approach allows for a more responsive and resource-conscious video surveillance system.