I've never used vuforia before, but we've decided to use it to find objects for FTC. I'm trying to scan a yellow cube (it looks like this, the grid is face up), but whenever I start scanning, it makes some points on the paper in addition to the cube.
I've tried with all sorts of lighting, on all colors of background(including gray, blue works the best), but whenever I remove the paper from beneath the cube, it no longer recognizes the cube, but if I point the camera at the paper, it shows the grid around the paper, even though there's nothing there. It's as if the phone is scanning the paper instead of the cube.
I have been able to isolate the cube one time on a blue background, but I was only able to scan from a few angles, so the recognition only worked at a certain angle, and only on a blue background.
What's going on? I printed the scanning target multiple times with and without the "fit to size" printing option. So far, I've only used the scanning app on an android phone (Moto G 2nd Gen). I attached the JPG from the functional scan.