Click a subject in the live video and the drone follows it at a fixed distance and height. A generic person/object detector on the companion produces detections; the operator designates one; the companion locks onto that track, projects its image position onto the ground, and feeds the flight controller guided position setpoints at a steady rate.
A lock-state safety gate stops commanding the instant the tracker reports the subject uncertain or lost, and never silently re-locks onto a different subject. The Follow-Me Skill in the cockpit Skill Bar arms and disarms the behavior; click a detected subject in the cockpit and pick Follow to designate it; the follow settings render as native controls; the node-detail tab carries a live read-back.
Requires a flight controller in a guided position-hold mode (ArduPilot Guided, PX4 Offboard/position). Works with a forward or downward camera; point a gimbal at the subject when one is present.