Real-f, based in Otsu, Japan, has pioneered the production of some uncannily lifelike masks.
The company uses 3D scanning and printing to reproduce the contours of the face, and the mask is then hand-crafted to replicate the finer features, with a photo affixed to the surface.
The masks have appeared as props in advertisements and music concerts, and automotive companies are now using them to train facial recognition software that can identify whether a driver is asleep at the wheel.
Watch the video above to find out more.
Video filmed and produced by Terushi Sho.
If you liked this story, sign up for the weekly bbc.com features newsletter, called “If You Only Read 6 Things This Week”. A handpicked selection of stories from BBC Future, Culture, Capital, and Travel, delivered to your inbox every Friday.