Autonomous landing of Micro Air Vehicles through bio-inspired monocular vision

Monocular distance estimation with optical flow maneuvers and efference copies: a stability based strategy

The visual cue of optical flow plays an important role in the navigation of flying insects, and is increasingly studied for use by small flying robots as well. A major problem is that successful optical flow control seems to require distance estimates, while optical flow is known to provide only the ratio of velocity to distance. In this article...