Designing drones for privacy and security: a focus on visual salience

As the use of drones in emergency response, traffic monitoring, and logistics continues to expand, public concerns over privacy, security, and environmental intrusion have become significant barriers to societal acceptance of drones. This study, through empirical analysis, elucidates the interplay between drone color and light design with environmental backgrounds in enhancing detection capabilities and reducing perceived risks. Twenty participants took part in a visual search experiment to assess reaction times to drone stimuli across urban, greenery, clear sky, and nighttime scenarios. Results indicate a marked preference for brightly colored drones and specific light patterns in improving search efficiency and visibility. These findings underscore the importance of design in enhancing the perceptibility of drones and advancing privacy and security protections.