Motivation Let me start with a very short story. I did my first project involving Computer Vision when I was 15 years old, completely fascinated by technology and by creative solutions to all kinds of problems. At the time, I thought it would be cool to turn my PC into a touchscreen device, so I took the naked LCD panel and diffuser layer from an old screen and built them into a cardboard box. I also disassembled my webcam and replaced its RGB filter with a makeshift infrared filter made from the black disk of an old floppy disk. The sketchy IR camera, together with a few IR LEDs, was placed inside the box, and whenever I touched the diffuser, it reflected the IR light back to the camera sensor. I had something like this in mind.…