A team at National Tsing Hua University has recently developed an artificial intelligence (AI) chip that mimics the optical nerves of the fruit fly, allowing drones to automatically avoid obstacles while remaining in an ultra-power-saving mode. The image sensor used in cameras have millions of pixels, whereas the eye of a fruit fly has only about 800 pixels. When the fruit fly’s brain processes such visual signals as contour and contrast, it utilizes a kind of detection mechanism which automatically filters out unimportant information, and only pays attention to moving objects liable to collide with.