A Heads-Up Display (HUD) is an interface that presents critical data directly within a user's field of view without requiring them to look away from what they are doing. In operational live streaming and wearable technology, HUDs can be projected onto transparent visors, smart glasses, or displayed as on-screen overlays within a video feed, presenting information such as navigation maps, vital signs, environmental sensor readings, stream status, or incoming communications data to the operator in the field.