App android con OPENCV

The source code to implement part of the remaining project in android studio is my project. I need to identify the box with the reference points shown in the "image 2" from the open android camera, Once identified from the camera, the QR will be read and the filled(put 1) and empty(put 0) circles detected from the attendance list for generate JSON to show in toast. For example: JSON----> { "qrCode": "02-13", "listAssitent":"0,0,0,0,1,1,1,0,1,0,1,1,1,0,0" }