Image: Getty Images/iStockphoto Scientists from Carnegie Mellon University have developed a cheap way to sense humans through walls by using two Wi-Fi routers to image a human's 3D shape and pose.

The data output from this setup is not the image you see above -- for that, researchers had to turn to an AI model called DensePose that estimates body position from 2D photos.

WiFi Routers Used to Produce 3D Images of Humans ... an open source developed by Facebook AI Research that can estimate human posture from 2D images and map textures to the human body surface.