Researchers at Princeton University and the University of Washington created a new type of optical system, called a metasurface, to shrink the camera’s hardware down to size, and combined this with machine-learning image processing that enables the camera to produce clear images in natural lighting. Previously, micro-cameras could only produce useful images in perfect laboratory settings, according to the researchers. Their work is published in the journal Nature.

Cole, S. (2021, December 7). Researchers made a camera that’s the size of a grain of salt. Vice. https://www.vice.com/en/article/4awxvg/researchers-made-a-camera-thats-the-size-of-a-grain-of-salt