Network latency can be annoying or even become a safety issue.
In IP video networks, scene content must be electronically processed, prepared as data packets for transmission over the network, and electronically processed again for display on a screen. These processing steps allow resolutions and image enhancements outrunning any analog system – with virtually unlimited distance to travel. But unlike an analog video signal which travels at near light speed, they require time, gradually inducing delays which sum up to a certain latency.
An IP video transmission is processed through a chain of components starting from the scene, which is the camera sensor, to the screen, which is a monitor device. Further components are image processing pipeline and encoder, the network which consists of links of certain bandwidth, and network infrastructure like switches or routers. Each of these add a little to the overall latency. Though we cannot avoid this technical fact, we can at least ensure not to waste valuable processing or transmission time needlessly.
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