Viu offers a simpler solution that utilizes smart design principles with a bit of computer vision and computational magic. In a nutshell, it is a webcam on a small stand whose lens faces down at an angle and sees anything that you place down on a flat surface in front of it. Algorithms straighten out the images so that they appear as if they’re taken from a camera that’s facing straight down from a high level. We’ve seen this kind of “document straightening” in many smartphone camera apps.
https://www.cupbord.com/viu-offers-a-simpler-solution-that-utilizes-smart-design-principles-with-a-bit-of-computer-vision-and-computational-magic-in-a-nutshell-it-is-a-webcam-on-a-small-stand-whose-lens-faces-down-at-an-an/
