I laughed when I heard the reference to optical flow sensors, like somehow strapping an optical mouse sensor (albeit with appropriate lens technology) to the bo

I laughed when I heard the reference to optical flow sensors, like somehow strapping an optical mouse sensor (albeit with appropriate lens technology) to the bottom of a drone somehow solves all the sensing and control problemthin loved in bringing this technology to the mainstream. An optical flow sensor has very limited utility; it's possibly the least useful of all the sensors you could add to a UAV. It's inclusion in this video was purely marketing fluff for the technically illiterate, thanks to its fancier-than-it-actually-is sounding nomenclature.