Back in the 80s, I had an Atari computer and wanted to scan images for a newsletter. There were no affordable scanners at that time and none whatsoever for the Atari, so I did something similar.
I bought this device called
ComputerEyes, attached it to a video camera, and digitized images taped to a nearby wall. No OCR back then, but I'm not sure why this impresses. For a fraction of the cost of this device with no effort, I can buy a scanner with an ADF that comes with free OCR software.