What does pov mean by semi-following?

Semi-following mode can only follow when moving left and right.

Semi-following mode is mainly used when there is a fixed bracket, otherwise, people will jump out of the picture by shaking up and down or moving up and down.

Generally, PTZ has four modes: semi-following, full-following, fixed mode and face tracking mode. It is recommended to use full follow-up mode for outdoor video recording, and the effect is better.