New techniques teach drones to fly through small holes

INSUBCONTINENT EXCLUSIVE:
Researchers at the University of Maryland are adapting the techniques used by birds and bugs to teach drones how to fly through small holes
at high speeds
The drone requires only a few sensing shots to define the opening and lets a larger drone fly through an irregularly shaped hole with no
training. Nitin J
Sanket, Chahat Deep Singh, Kanishka Ganguly, Cornelia Fermüller, and Yiannis Aloimonos created the project, called GapFlyt, to teach
drones using only simple, insect-like eyes. The technique they used, called optical flow, creates a 3D model using a very simple, monocular
camera
By marking features in each subsequent picture, the drone can tell the shape and depth of holes based on what changed in each photo
Things closer to the drone move more than things further away, allowing the drone to see the foreground vs
the background. As you can see in the video below, the researchers have created a very messy environment in which to test their system
The Bebop 2 drone with an NVIDIA Jetson TX2 GPU on board flits around the hole like a bee and then buzzes right through at 2 meters per
second, a solid speed
Further, the researchers confused the environment by making the far wall similar to the closer wall, proving that the technique can work in
novel and messy situations. The team at the University of Maryland Perception and Robotics Group reported that the drone was 85 percent
accurate as it flew through various openings
It not quite as fast as Luke skirting Beggar Canyon back on Tatooine, but it an impressive start.