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Linear Book Scanner

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JEFF BREIDENBACH: My name
is Jeff Breidenbach. I’m very pleased to introduce
Dany Qumsiyeh, who is going to be presenting on an automatic
book scanner. This talk began with an idea
of showing this device to a single person. And that person invited
two more people. And you’re all here through the incredible power of recursion. So with that, Dany,
come take it away. DANY QUMSIYEH: Thanks, Jeff. Let me take a moment
and shut it down. I’m just going to tell
you about this book scanner that I built. But first I want to just show
you a few examples of some book scanning technologies
that already exist for comparison. The easiest way to scan a book,
of course, is to cut off the binding and then stick it
through a sheet-fed machine. There are machines that will
just feed each sheet through and scan it. Very high quality, but
the problem is you destroy the book. So what we’re talking
about here are non-destructive book scanners. So there’s a large class of
book scanners that are not totally automatic, where a
person turns each page. And a lot of the time, there are
glass plates that flatten the pages out. And then there are cameras
that take a picture of both pages. So you have to kind of raise
this glass plate, turn the page, lower the plate, and
then snap a picture. So it’s pretty fast,
but involves a lot of manual labor. There’s actually a large
community of people at the diybookscanner.org that
build their own. And they post instructions for
how to build your own. So they make them out of
cardboard and wood and all kinds of things that
are lying around. There are some commercial
robotic book scanners. There’s quite a few that use
some sort of robot arm the same way that a person
would turn a page. And Kirtas is one of
these examples. They have an arm that kind of
suctions a page and then moves it over to the other side. There’s another that uses
a very different method. This company is called
Treventus. And they make a machine that has
this V-shaped thing that moves up and down. And it actually suctions two
pages against it while capturing images with a linear
sensor along the tip. It’s really cool. And these are state of
the art machines. And they’ve gotten a
lot of praise for being gentle to books. The main issue is that they’re
really expensive. One of these Treventus machines
can cost on the order of $100,000. This is the machine
that I built. And I’m going to show you a
brief video so that you can see some closer up
views of it. And then I can go into some
of the technical details. The general idea is this book
is moving back and forth on top of this prism-shaped
machine. There are linear sensors, just
like in a flatbed scanner that the book moves across
and it captures an image of each page. And then there’s a vacuum, in
this case just a regular house vacuum, that’s connected
to those spots that’s sucking air. And it sucks the single page
through and that page goes across to the other side. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was
how do you ensure that you only get one page? That’s the next thing I’ll talk
about once this is done. And then the images show up
on a computer [INAUDIBLE]. So it’s really simple. And it doesn’t involve very many
parts, so it’s not very expensive to build. The question was, how do
you ensure that it only turns one page? I’m going to try and provide a
very simple diagram of what’s going on when a page
gets peeled off. In this case, we have a stack
of pages that are sliding in from the right and I’m looking
at them edge on. And they’re sliding along
this curved surface. And along that curve, there are
slots where I’m applying vacuum suction. Hopefully it’s obvious
that one page gets sucked against this. The other pages don’t actually
receive any suction, so they will tend to stay straight
and go across. And then they get divided
by this piece of metal on this side. Now, it’s still possible
for two pages to kind of be stuck together. And to help out with that,
in this prototype there’s actually air that blows up from
underneath onto the edges of the pages. And that helps to separate
pages if they’re stuck together. Next I want to talk about why
the channel that the page goes through looks so strange, why
it’s shaped the way that it is, and try to explain the
motivation for that. And I’ll try to explain it by
explaining a few examples that don’t work. So for example, if you have
this prism shape– and I’m looking at
a top view here– where a page on one side has to
get from that side over to the other side, the simplest
thing to do is to cut a slot, like a diagonal slot in that
prism so that the page can slide into it and go across
to the other side. The problem you run into is when
the page is in the middle of that slot it actually
has to kind of twist. So the binding of the book stays
straight, but the page has to twist along that slot. And that’s something that it
just can’t do, so it’s very likely for the page to tear. So the way that the machine is
really shaped is a little bit more like this, where there’s
a flat section in the middle of that diagonal slot. The idea is the page
is coming in. And while the page is in that
intermediate section, it’s actually free to swing across
to the other side. And so, it can go to the other
side without actually getting twisted, so that works
a lot better. There’s another problem
you run into. In this example, the slot for
the channel is just a straight diagonal along that
front surface. And there’s another problem you
run into if you have that straight diagonal and you’re
applying vacuum pressure to try and pull the page through. This is trying to
illustrate that. Basically this is a side view. And here’s the page coming from
the right to the left. And the darker gray area is the
channel where the page is sliding into. And that really dark
slot is where the vacuum is being applied. That’s where the slots
of the vacuum are. In this case, the page is
coming from the right. And the corner of it is getting
sucked up against those slots and curving
around that curve. So as the page continues, you
run into a problem where the page is being curved along this
diagonal and that curve reaches the binding. And basically the motion of the
book is forcing the page to bend near the binding. And that’s something
that it can’t do. Basically, in order for the page
to continue to the left, it has to pull itself off
of that vacuum area. And if that requires too
much force, then the page will just tear. So this doesn’t work
very well. The picture at the top was
actually an earlier cardboard prototype that looked a little
bit more like this. And that was the problem
that it had. So the way the machine is
actually shaped is a bit more like this. There’s a diagonal opening
near the bottom. And then the opening opens up
vertically in the top part. So as the book is going
across, the page gets suctioned against that
dark area and curves around that diagonal. But at some point, the page
reaches the part where this opening opens up vertically. And so a page is no longer
supported by the surface that’s on the right. So it’s actually free to swing
across to the other side. So if you have a shape like
this, then the page can basically slide its way off of
that vacuum section without applying too much force
to the binding. So the sensors– let’s see. I’ve got one here. So these are the sensors. It’s a contact imaging sensor. And it’s straight out
of a flatbed scanner or a sheet-fed scanner. It’s the same thing
that they use. It has an array of light sensors
and pulses colors so that you can capture
each color. And it actually did come from
a sheet-fed scanner. We took it apart–
we took apart a lot of scanners actually. And it turns out if you take
out the circuitry and these scan bars and just plug them
together, you can use it just like that. You can tell the computer to
scan and it thinks the scanner is just a regular
Canon scanner. And it captures images. So there’s very little
software required. And we didn’t have to do
any of the electronics. One note about using these
sensors is that the sensor is kind of square. And when you stick it inside– this is an end view of
the machine with a book open on top. When you stick it inside, you
can’t actually stick it all the way up into that corner. And that can present a problem,
because you can’t capture an image all the way
into the groove of the book. So if the book has very narrow
margins or has content that’s all the way into the groove,
then you might not be able to see that content. And for this prototype, one way
we improved that situation was I just took these sensors
to a belt sander. And it turns out you can grind
away quite a bit of that circuit board before the
thing stops working. And that was enough to get us
within about nine millimeters of the groove, which is
OK for most books. For a real machine if you want
to do a lot of scanning, it’s probably better to use
a different sensor. There’s a lot of other scanners
that use a CCD sensor, where they have a lens
and they project the image onto a linear sensor. And in that case, you could
actually project the image all the way from the corner. It wouldn’t have this kind
of square restriction. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: Yes. Somebody mentioned that
increasing the angle of the corner at the top would help. And that’s something we
looked into a bit. One problem you run into when
you make that angle larger, like 90 degrees, is that the
book doesn’t actually want to sit completely flat. So the curve of the page may
actually still hide some of the binding from you, because
it’s not totally flattened out onto the surface. Also, librarians generally
like to keep the– they consider it very bad to
open the book too far. And so if you can keep the angle
of opening as small as possible, that’s better
for the book. This is the result you get. It’s a very flat scan, as if
you had put the page onto a flatbed scanner. And the quality is
exactly the same. So by default, I’m running
this at 300 DPI. But you could crank it up
larger if you want. And it’s also a lot better
than using cameras for scanning, because cameras, even
though they may have a certain number of megapixels,
each pixel is actually red, green, or blue. And in these scanners, when
you say 300 DPI, you’re actually capturing all three
colors for each pixel. So it works a lot better. It has much higher quality. And these sensors are only like
$20, compared to a very expensive camera that
you would need. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
how does the linearity of motion look? Do I have to do any correction
for the motion not being very constant? And it seems pretty good. We’ve looked at the images
and haven’t noticed any disturbances. The motor is a stepper
motor and it has a very controlled motion. And the belt that we’re using is
a timing belt, the same as in a regular scanner. Earlier, we had experimented
with ways of correcting for that using kind of a pattern
that’s on this saddle. I’ll say a little bit about
this, we’re calling it a saddle, the thing that moves
the book back and forth. It has clamps on it to kind
of hold the book in place. And another purpose of the
saddle is it has these white strips on it which are used for
calibrating the sensors. So when it’s in the home
position, those strips cover up the sensors. So when you first start
scanning, they figure out what color is white and they
calibrate to that. The other important function
of these clamps is to help support the weight
of the book. If you don’t have them, you run
into a problem where, say you have a very thick book and
you’re at the very beginning or end of the book, so all the
pages are to one side. That weight can cause the
book to kind of sag. And it causes the
pages to sort of curve near the binding. And that can cause problems
for page turning. Or the book could just
fall off to one side if it’s very large. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
does this mostly work for hard-bound books, or
does it work for soft-cover books as well? And it does work for
soft-cover books. I guess the support from the
clamps kind of works a little bit better for hardcover
books. But we haven’t run into any
problems using it on soft-cover books. Yes. The clamps on the saddle
look kind of like that. And they help support the
weight of the book. Basically, when you first start
scanning, you set the book down somewhere
in the middle. And then you adjust these
so that they’re just touching the book. And then from then on, if the
book is to one side or the other, it helps to support
the weight. The motor we’re using I said
is a stepper motor. And it’s an MDrive. And we have this timing belt
that goes around the top and then down through the machine. And this motor actually
comes with a built-in microcontroller, so pretty much
the entire code for it is on the right. Basically, you preprogram it
with the code that tells it how fast to go and when
to change direction. And from then on, when you power
it up, it just goes back and forth and does its thing. The extra thing that it does is
it has a serial connection. And at the beginning of each
cycle, it outputs a new line. And we use that for timing the
actual scan, so that we know when the motor’s arrived. The software for this
is really simple. The scanimage program that shows
there, that’s from an open source scanning library
called SANE. And so we didn’t need to write
any software for that. And we call that with a flag
that tells it to capture an image every time
you hit Enter. That’s the batch prompt. And so then all you have to do
is take the line breaks from the motor and pipe them
over to scanimage. And then the machine runs. So one command. There’s some extra software
that Jeff, who introduced me, wrote. This is just an image viewer. It shows you the images as
they’re being scanned. And it’s open source,
the URL at the top. And it has a lot of great
features, like you can click on a page number and you can see
a mosaic of all the page numbers that you’ve scanned. And that makes it really easy to
tell whether something went wrong during scanning, like
you missed a page or you duplicated a page. Basically, you can look down
these columns and see like 361, 341, 321, 301. You can see all the way down
that everything went fine and that no pages were missing. Another way that we avoid
problems and detect duplicate pages or missing pages is with
a sensor that’s right inside the machine. As soon as a page comes in the
slot to be turned, there’s a break beam sensor. So we detect exactly when
the page arrives. And basically, if a page arrives
at the wrong time or doesn’t show up, then we know
that something’s wrong and the motor stops. So this sensor is connected
directly to the motor. And that’s part of that
microcontroller program. That’s about all the details. Just to give an idea of where
things are, this is the first non-cardboard prototype. So there’s still a
lot to improve. The first prototype on the top
left, that’s cardboard just from a dumpster that was
outside the office. So it cost nothing. And it had a little air pump
from an inflatable mattress. And that was actually
able to turn pages. And it was really exciting. I experimented with the shape of
the page-turning mechanism a few times, but this is the
first model that’s actually built out of metal. Where it is right now, basically
it’s very quick to set up for a book. It takes about 40 seconds to
adjust those clamps and start the scanning. The cycle time of this going
back and forth right now is 11 seconds for a page pair. So a 300-page book would take
about half an hour. This is a lot slower than many
of the alternatives. But since it’s fully automatic,
one operator should be able to run like
10 of them. You don’t have to do more than
just start it and stop it. The materials, there’s only
about $1,500 of materials. About half of that is just the
scanner that we took apart. And there’s the vacuum
and then the metal. So it should hopefully be
very cheap to build. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
it is possible to get any sensor feedback from the motor
as to whether the page is hung up or tearing? Yes. There are models of this motor
where it will know if it’s stalled, if something
is stuck. And I’m sure there are models
where you could also detect how much force it’s
taking to move. So yes, if you wanted to
get a fancier motor, you could do that. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: What prevents
me from running it faster? Right now that’s actually
the motor. If I try to run it faster for
a large book, then the motor doesn’t have enough
power to move it. So an easy way to make this
faster is just to get a better motor. There’s also things you can do
with the arrangement of the sensors and the shape
of the thing. Basically just make it
so that it has a shorter distance to travel. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question
is, do you need any adjustments for book size
or paper thickness? There’s a limit to the size of
books that this can scan. And right now, I guess I was
going to mention we’ve only scanned about 50 books. Basically about 60% of the books
that we’ve come across are able to be scanned. Many of them are too
big or too small. So basically, it has to fit
inside of the saddle. And it also has to be able to
reach those vacuum slots. If a book is really small then
it won’t reach them at all. And so that’s a number that
could also be improved by changing some of the dimensions,
basically doing a bit more experimentation with
how the thing is shaped. And then for thin pages or thick
pages, one major factor in that is what the power
of the vacuum is. So it’s best if you
can adjust that. For very thin pages you don’t
want to pull too hard on them. But again, there’s a limit on
what you can do for that. So this works on most books
we’ve come across. But it won’t work on like
dictionary-thin pages or really stiff kind of cover
page material. We still have a lot
of problems. Basically about 45% of books
have one or two skipped pages that we tried. And about 45% of them have
some sort of fold or tear in the page. That’s really bad. This image is an example of
one of the bad cases. And actually what happened here
was the page already had a little bit of a tear
in the corner. And that presents a problem,
so when it went through the machine, it kind of exacerbated that and folded it. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: Of the books. Yes. Not the pages. So it’s only a couple
errors in the book. For most pages it was fine. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: We’ll leave
those questions until afterwards, if that’s
all right. And also, this was before
we installed the sensor. So in this case where the page
was folded it’s very likely that the sensor would have
detected that the page didn’t arrive at exactly the right time
and stopped the machine before it caused any
more damage. There’s a lot of improvements
to make. I still haven’t experimented
much with different shapes. This is only the third
iteration, really. And there’s adjustments you can
make to the vacuum, like maybe adjusting where the vacuum
is applied and what the slots look like. There’s better materials, like
aluminum leaves a little bit of aluminum oxide residue that
you can kind of see on the edge of the book. And it would be better if it
were stainless steel or something like that. And of course, better image
sensors like a CCD sensor that would be able to capture all
the way into the corner. And then there are crazier
ideas, like you could take a whole bunch of these and chain
them up if you have a lot of books to scan. Basically, this diagonal opening
can be chained pretty close together. So you could have just two
people, one at each end, loading books one right
after another. And you could perhaps scan books
really quickly that way. There’s a lot of interesting
ideas about what to do with it. So that’s it. I just want to be sure to thank
Jeff, the person who introduced me. He’s been really crucial
to this product. He wrote all the software. He helped out with
the sensors. He installed the break
beam sensor and helped take apart scanners. And he’s given me advice all
along the way and given me the moral support to keep
working on it. And I also want to thank my
manager, Stephane and previously Ram, who have been
OK with me working on this. And they’ve supported me in
any way that they could. That’s about it. I can take questions. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
can you talk a little bit about error [INAUDIBLE] and what you do when something
goes wrong? So right now with this
prototype, basically if a page doesn’t turn, that detects it
and the machine just stops. And so you can notice that and
come and figure out what happened and then reset
it and start it again. Right now, there’s no
way to detect if two pages go through. If they’re really stuck
together, then that means that you missed capturing
the images of the page that was in between. That’s a problem, but there are
ways that you can detect that and there are things like
sheet-fed scanners used to detect whether two pages
have gone through. And you could do something
similar. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
do you think you can make it any cheaper, because it
sounded like the scanner part was already the most
expensive part. Yes. If you did your own electronics,
for example. These sensors, the part that
we’re actually using are only $20 each. So if you built the electronics
yourself at a large scale, then it would
probably be even cheaper than it is now. But the biggest cost
will probably just be putting it together. And right now, all the
pieces are basically flat pieces of metal. And so they’re very
easy to cut. Any other questions? Yes? AUDIENCE: [INAUDIBLE] The question was where
did I build it. And I built on some workshops
that are on campus. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was
what happens if the book is really dirty? Does it leave a streak all
the way down the page? If there’s really something
like smeared on the paper, then yes, that could
get stuck to the sensor and leave a streak. And you’d probably have to have
some process to notice that and clean it up. But we joke that since the book
is travelling over these vacuum slots, we’re actually
cleaning out dirt from the book as it goes. And that’s a feature. Anyone else? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question
was, it looks like this machine, if something
goes wrong, could actually tear a page. And it looked like the other
machines we looked at couldn’t actually tear a page. The other machines, they
do tear pages. It’s just very rare. And they’re gentle enough
that libraries are OK with using them. For this machine, we’ve
actually talked to a conservationist from Berkeley. And he was really excited
basically that the benefit of having digital versions of these
for people to use was greater than the small risk of
causing damage to some books. And libraries accept the risk
that, like when they check out books, they are going to come
back in worse shape than they were before, but that it’s worth
it for people to use the book and to read the content. But yes, hopefully this can be
improved to the point that is safe enough to use
on fragile books. Yes? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question was,
why is the scanner so far away from the slot. The main reason it’s there was
just we wanted to have both scan bars together so that they
capture at the same time. And the slot on this side, the
exit slot actually extends all the way up to where
the scanner is. So you could actually make them
closer if you had them separate, like one on
this side and one on the other side. And that might make a shorter
distance to travel. AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question
was, is it two scanners or just one scanner
with two bars? This is one scanner with two. It’s from a sheet-fed machine,
so the sheet would feed through and it had a scan bar on
the top and on the bottom. And so it was one circuit
board and we just took two sensors. Any other questions? AUDIENCE: [INAUDIBLE] DANY QUMSIYEH: The question
is, where does this project go from here? And I don’t know. But we’ll talk a little bit
more about that later. AUDIENCE: [INAUDIBLE] JEFF BREIDENBACH: Maybe this
is a good time to end the recorded portion of the talk. And let’s give Dany a hand. [APPLAUSE]

Tags: , , , , ,

56 thoughts on “Linear Book Scanner”

  1. justgivemethetruth says:

    AWESOME … BUT, does it have some kind of error correction to detect when maybe two pages have been turned at a time … or what if a page is ripped or missing, or even duplicated – or stuck together with glue or food or boogers or something? 😉

  2. Erica Joy says:

    17:40 answers your question.

  3. Peter says:

    this is a very useful technology!!!

  4. justgivemethetruth says:

    Not quite perfect, it's still up to a human to inspect the page numbers. still an impressive invention … I'd love to build one myself … I just gave away a very good scanner, and I have a vacuum cleaner just like the one pictured. A stepper motor could sense location and velocity, and grab statistics. Maybe some kind of sling or harness that runs fishing line or something between groups of pages could allow a large book to be scanned.

  5. nic w says:

    Great to see this video. Dany is a genuine inventor. He and Jeff did a great work!

  6. JustABigFan2010 says:

    brilliant

  7. danielbluesmoke says:

    I would've liked to have this several years ago. It would've helped a lot. I spent three months scanning books with a normal scanner.

  8. fritzintn says:

    '20% time' refers to a program at Google where employees are free to work on side projects during the workweek (20% of hours worked).

  9. 3hoursago says:

    Levelator… please!

  10. Jim Feig says:

    It looks like a lunch meat slicer for books.

  11. Nito Niwatori says:

    Brilliant.

  12. Anol Paisal says:

    If it has feed page forward and backward. it can scanning 4 pages per round.

  13. tilmaen says:

    could u also use a prism to get into the fold of the book?

  14. 4makaroni says:

    Genius.

  15. Серебряные нити says:

    Хабра, это счастье для флибусты или либрусека!

  16. nittyjee says:

    @GoogleTechTalks:
    my big question: why hasn't anyone automated the diybookscanner project (@1:50), so it works like the kirtas scanner (@2:30)? People have already made ones with really simple suction devices: (youtube: GaTechMechatronics Automatic Book Scanner). Seems to me that it would nearly eliminate the problems of tearing, folding and smearing, as was mentioned.

  17. Daniel Carr says:

    Excellent invention, but at 5:07 the automatic transcription is:
    "provider are very simple diagram of what's going on when jewish gets killed".

    That could be kind of offensive. You might want to add captions to your video.

  18. Daniel Carr says:

    Another entertaining automatic transcription at 8:04:
    "and the corner of it is getting fucked up against those slots".

  19. Charles Bates says:

    This is awesome 😀 I have used Google Books for years now (PDF images, not EPUB). If you are interested in any history to 1923 (copyright laws) philosophy, literature, and even a fair amount of mathematics, it is all there. Some of the academic conclusions obviously need to be updated, but Caesar's Gallic War is the same as when he wrote it, so it is a great place to get original texts for nothing 😀

  20. Oleh Shumytskyi says:

    Красавчик. Все гениальное – просто!

  21. SquirrelFromGradLife says:

    Anyone else looked at the closed captioning? Man are they hilariously wrong..

  22. eldino says:

    If you are so clever, please realize it first and show it to the world.

  23. seaneihm says:

    would be perfect for scanning textbooks and reading books for school.

  24. Sami Kalliomäki says:

    02:30 Yo dawg, I herd you like YouTube videos, so I put a YouTube video in your YouTube video so you can watch a video while you watch a video

  25. LTgoodevil says:

    If digital cameras would be so great at scanning, scanners would be already extinct! Think next time…

  26. LTgoodevil says:

    High megapixel has nothing to do with the sensor quality for one thing. Then you need proper lightning and no, regular lamp wouldn't do. You need page to be flat to bypass natural curvature of the book, this will be problem with big books as placing camera perpendicular will not capture the whole page. I'm not saying it is not possible, just it will cost much much more than you suggested to get same quality.
    Plus you can not damage book in process.

  27. Danilo Silva says:

    as editoras devem adorar isso

  28. Connorvic11 says:

    I have a suggestion for improvement, make 2 slots one on each side of the scanner that way the same page doesn't have to travel over the scanner twice (the first being ignored) so it could scan as the saddle travels both directions. Thanks, Good talk

  29. Sai says:

    A better metric for skip & tear would be per-page. Presumably there's only weak second-order effects, so per-book risk is just the aggregated per-page risk. Book size varies, etc.

  30. David Escalante says:

    You know very little about cameras, don't you?

    What about the curvature of the lens? Camera lens distort the flat view into a perspective.

    Also scanners use OCR technology to convert scanned text into actually editable text.

  31. David Escalante says:

    Who said the person what an exact real life version? What if that person want to read it on a phone or tablet?

    Also making virtual copies are for preservation and durability.

    You are not quite what you nickname suggest.

  32. David Escalante says:

    Close minded much?

  33. Jitendra Bhardwaj says:

    Excellent Design ….book scanner was my Master thesis …reminded old days 🙂

  34. David Escalante says:

    Looks like you are about to.

    There are a lot of people nowadays in the digital era that use to read with digital devices and doing a digital scan of a book is for preservation and durability purposes.

    Just to make clear my point, the fact you don't find it useful doesn't mean it is not.

    You are far to be "enlightened".

  35. Marco Mambelli says:

    is he allowed to use a Mac working for google :p ?

  36. animes25 says:

    the best way to know if only one page is turned is easy, just program the computer to do a OCR read over the number of the page, no matter what the machine can fail separating pages.

  37. Paul Korir says:

    This is a work of pure genius! You can only understand the brilliance of this idea when by considering that ALL other attempts are stymied by thinking of the book lying on its back (the way a human would read it). I'm completely blown away.

  38. armanketigabelas says:

    Why not? I think Google is essentially a web service, so it should considers multi-platforms technology. But if eventually they want to make better OS platform, maybe they'll launched it like Android and Chrome OS. But the internet dependability of Chrome Notebooks still limiting, so maybe they'll go after ISP first.

  39. Benache says:

    Why don't you put it the other way round, i mean with the book sitting on the saddle under the scanner. This way you wouldn't have to adjust anything.

  40. Alex Hanshaw says:

    I'd love to see this productised. If the cost could be brought done to something close to the price of existing flatbed scanners I'm sure there are loads of people that would love to conert their book collections to ebooks.

  41. Richard Haskins says:

    If you put another set of scanners on the other end of the machine, and put another set of page flipping guides on the other diagonal then you could double the speed of the scan.

  42. Jay Dugger says:

    That will work, but slowly and inaccurately.

    Page numbers don't have consistent positions. This requires manual checking for accurate page number identification, and avoiding manual checking is the whole goal.

  43. animes25 says:

    you can program the software to check only the top or the bottom part of the pages, and only search for numbers, and it will be only a support step for the scanning to reduce mistakes, to alert to you if something goes wrong, if it goes wrong it can make a sound and you will be able to check for those pages, it wont stop the process, it will just remind you that something could be wrong

  44. my Jung says:

    can this machine scan a bible? I think that it is very dangerous for using this to thin page books.

  45. Tony Mel says:

    more and more book scanner came out recently.
    Check this product called xcanex out and its quality.

    It claims to scan 16 pages of book under 5 mins. Wonder if it’s true..

  46. Kenneth Cargill says:

    There is also the issue of scanning books with uncut pages. Granted, this is only an issue that applies to unopened books generally published before the 20th century, but I cannot tell you how many books I looked at when I was a researcher where a portion of the book was unread and I needed to cut open the pages with a blunt knife. Codices come in so many different variations and formats that this kind of machine is only going to work with a subset. Nonetheless, the scanner is very impressive.

  47. 1Dollarscan says:

    Interesting video on book scanning. Thanks for posting it.

  48. Gothiczartan says:

    I was looking for a non glare glass sheet

  49. R.S. Agustin says:

    dear admin, im currently looking for more info of this product. please send me the contact details of the company. thanks

  50. Mahadragon says:

    It's a great idea until you find a book with pages that are totally bent and fucked up. Or a book with really thin, old, fragile paper, easily torn.

  51. Juan Herrero says:

    The Treventus sometimes mises a page, as you can see in the embeded video.

  52. iObsidianROTMG says:

    cHECK Linear Bookscanner Studio Mango

  53. BarriosGroupie says:

    I'm blown away by this level of thinking outside the box; very clever, elegant and innovative!

  54. Good DeedsLeadTo says:

    Adobe reads aloud scanned pages?

  55. Jacqueline says:

    This guy is a genius, why aren't the audience clapping? Duh!!

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