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Linear Book Scanner

56 videos recommended on HN
YouTube
1 HN user recommended this demo1 month2015–2021 score 1
Years with an HN recommendation, 2007–2026

HN cites it as the example of Google's open-sourced linear book scanner design when discussing book digitization.

Google engineer Dany Qumsiyeh presents a prototype automatic, non-destructive book scanner that turns pages and captures high-resolution images, built in Google's workshops. The talk includes a live demo and a short technical overview.

“Google developed a system called the "cheese grater" and open-sourced the plans / design” (HN, 2015)

1 recommendations · 3 citations · Demos · intermediate

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@fefesafaea Apr 2017 Recommends
on HN thread Torching the Modern-Day Library of Alexandria: The Tragedy of Google Books
Found a video of one of their prototype scanners. IIRC they looked at like every scanning solution available and also got a bunch of universities and libraries to help them purchase and operate scanning equipment. Pretty cool stuff. [link] edit: Next vid looks good too. In depth on different scanners. [this video]
In-depth video on different book scanners

Citations, criticism and jokes

@rckoepke Sep 2020 Cites it
on HN thread How to digitize your lab notebooks
Interesting. I had been led to believe that Google used a linear book scanner towards the end of the big Google Books library scanning project. It looks like this may have been an internal prototype that wasn't necessarily used for large-scale scanning opert [this video] [link] [link] [link]
Shows Google's linear scanner, possibly an internal prototype
@dredmorbius Dec 2021 Cites it
on HN thread 50 years of eBooks: 1971-2021
Read more
Generally: unbinding the leaves of a book so that they can be more easily handled by a scanner, often including an automated feeder. The simplest method is to simply cut off the binding (a powered paper cutter can do this in an instant). The alternative is nondestructive scanning, where the binding and publication as a whole remain intact. This is typically performed using flatbed scanners, angled scanners (the book is either face up or face down on a scanning bed which typically forms a ~90 degree angle), automated feeders which incorporate page turning (via numerous methods), or face-up scanning with digital deconvolution of page distortions. Higher speed presents higher risks of both poor / missed scans, and damaging original materials. Methods should be tuned to the materials, their intrinsic value and/or uniqueness, and end goals. See: [link] There are numerous book-scanning projects with YouTube videos of their methods. Typical rates range from ~300 -- 3,000 pages/hour, with 1,000 pp/hr being a good middling rate. DIY 1,000 pp/h [link] [link] Commercial, manual page turning: [link] 3,000 pp/h vacuum page turning [link] ... capable of managing very thick volumes: [link] Google fully automated linear scanbot: [this video] Face-up, no-platten, with deconvolution: [link]
Listed as Google's fully automated linear scanbot among scanning methods

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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