This looks like a very similar problem to the one dropbox wrote about in "Fast and Accurate Document Detection for Scanning": https://blogs.dropbox.com/tech/201

This looks like a very similar problem to the one dropbox wrote about in "Fast and Accurate Document Detection for Scanning": https://blogs.dropbox.com/tech/2016/08/fast-and-accurate-document-detection-for-scanning/ https://blogs.dropbox.com/tech/2016/08/fast-and-accurate-doc... https://news.ycombinator.com/item?id=12254517 https://news.ycombinator.com/item?id=12254517