https://www.miteksystems.com/mobile-capture
https://www.pyimagesearch.com/2017/07/17/credit-card-ocr-with-opencv-and-python/
https://www.pyimagesearch.com/2017/07/24/bank-check-ocr-with-opencv-and-python-part-i/
https://dropbox.tech/machine-learning/improving-the-responsiveness-of-the-document-detector
https://patents.google.com/patent/US8351677B1/en
https://patents.google.com/patent/US7620604B1/en https://patents.google.com/patent/US7856402B1/en https://patents.google.com/patent/US7873200B1/en https://patents.google.com/patent/US7876949B1/en https://patents.google.com/patent/US7885880B1/en https://patents.google.com/patent/US8046301B1/en
https://www.bankingdive.com/news/wells-fargo-100-million-mobile-deposit-patent-case/570320/