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Linear Book Scanner

Google TechTalks · Youtube · 1 HN points · 4 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention Google TechTalks's video "Linear Book Scanner".
Youtube Summary
Google Tech Talk
May 3, 2012

Presented by Dany Qumsiyeh

ABSTRACT

See a hardware prototype of an automatic, non-destructive book scanner. The machine turns pages automatically, and captures high-resolution images of each page. It was developed in 20% time, and built in the Google Workshops.

There will be a live demo and a short technical presentation, describing the design process.

Speaker Info: Dany Qumsiyeh is an engineer on the Google Books team.

For more information on this project, see:
http://code.google.com/p/linear-book-scanner/
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Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.
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: https://en.wikipedia.org/wiki/Book_scanning#Destructive_scan...

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

https://youtube.com/watch?v=ne-h7FTMZBk

https://youtube.com/watch?v=RdLcrNeWjIs

Commercial, manual page turning:

https://youtube.com/watch?v=adQjU9JAWfw

3,000 pp/h vacuum page turning

https://youtube.com/watch?v=cmhIJOqepVU

... capable of managing very thick volumes:

https://youtube.com/watch?v=SdipuAuWsEs

Google fully automated linear scanbot:

https://youtube.com/watch?v=4JuoOaL11bw

Face-up, no-platten, with deconvolution:

https://m.youtube.com/watch?v=iAmrch_1f2U

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

https://www.youtube.com/watch?v=4JuoOaL11bw&feature=emb_titl...

https://hackaday.com/2012/11/16/google-books-team-open-sourc...

https://code.google.com/archive/p/linear-book-scanner/

https://linearbookscanner.org/

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.

https://www.youtube.com/watch?v=YhL7qJYzcd4

edit: Next vid looks good too. In depth on different scanners.

https://www.youtube.com/watch?v=4JuoOaL11bw

Nov 13, 2012 · 1 points, 0 comments · submitted by zx80
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