Excelent video and program. I will give it a try. Thanks!
program to convert chess diagram to FEN

You can see the link like 2 seconds into the video:
https://sites.google.com/site/fredm/
P.S.: I haven't used it, so use at your own risk.
Hi all, this app can perfectlly serve you.
Chessfimee allows you to scan chessboards using OCR(optical character recognition) technology. You can use your phone camera to take a photo of a chess diagram from books, papers, even LCD screens(PDFs, other sources) or you can use photos from your phone gallery then scan and analyse the position(using stockfish chess engine). Also you can share the chess position(FEN) with other chess applications.
An iOS version will be coming soon. Good luck!
I wrote such a program. Here is download link. Here is the youtube link:
http://www.youtube.com/watch?v=VUKfJkeCJmI&feature=youtu.be