Wondering if anyones seen this?

[IcantRead]

http://youtu.be/rjzxlA9RWio

I was looking around on youtube and book scanning stuff always comes up. This one intrigued me. I think they are using the scaling from the ruler on the platen to correct the image.

[daniel_reetz]

I think I saw that video a while ago, and tried to contact the author, and got no response. Very cool rig!