...a patent awarded to Google gives insight into how the search behemoth accomplishes the task.Of course, this is just a piece of the technology that Google is using. Maybe future patents will reveal more?
In short, Google has come up with a system that uses two cameras and infrared light to automatically correct for the curvature of pages in a book. By constructing a 3D model of each page and then "de-warping" it afterward, Google can present flat-looking pages online without having to slice books up or mash them onto a flatbed scanner.
BTW information flows on the Internet in many different ways these days. The way I found out about this was through a Facebook status update by SivaVaidhyanathan.
Technorati tags: Digitization, Google, Book