Look for humanPlan coverage, not just a flight line
Divide the area into sections that can be identified after the flight. Overlap views so an object near one image edge also appears in a neighbouring frame. Choose overlap for the camera and speed; the app does not fly the drone or guarantee complete coverage. Record obstacles and areas needing another check.
Altitude and subject size
Higher flight covers more ground but a person occupies fewer pixels. Lower flight adds detail and obstacle risk. Choose a permitted, safe altitude and inspect a sample image of a known subject. No height in metres guarantees detection. Position estimation needs recorded relative altitude, not a figure recalled from memory.
Camera angle and motion
Check focus, exposure and subject detail rather than judging video smoothness alone. Aircraft and gimbal motion can cause blur. Flat-terrain person-position estimates are available for photos at -90° to -60° with complete telemetry. That is a calculation limit, not a universal flight recommendation.
Check footage before leaving the area
Inspect several original frames and their metadata. Record segment names and missing areas. The searched-area layer means footage was analysed, not that no person is present. Where vegetation obscures the ground, record that limitation and agree another verification method with the coordinator.