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Robotic Hand Translates Speech into Sign Language

usermilk writes "Robot educators Keita Matsuo and Hirotsugu Sakai have created a robot hand that translate the spoken word into sign language for the deaf. From the article: 'A microchip in the robot recognizes the 50-character hiragana syllabary and about 10 simple phrases such as "ohayo" (good morning) and sends the information to a central computer, which sends commands to 18 micromotors in the joints of the robotic hand, translating the sound it hears into sign language.'"

25 of 135 comments (clear)

  1. How to sign First Post? by A+Dafa+Disciple · · Score: 3, Interesting

    Good lord! I imagine the Japanese language with its 1945+ character alphabet is hard enough to learn; learning Japanese sign language must really suck.

    You know what would really spoil those deaf kids is, instead of a robot doing sign language, a robot that shows images or words based on what a speaker says. I know, I know; creating a robot to do this is a feat within itself and impressive in its own right, but perhaps there are better ways of communicating with a robot if it can already perform more than adequate speech recognition.

    1. Re:How to sign First Post? by tpgp · · Score: 4, Informative
      Good lord! I imagine the Japanese language with its 1945+ character alphabet is hard enough to learn; learning Japanese sign language must really suck.

      The relationship between a language & sign language does not work like that.

      From the wikipedia sign language page
      A common misconception is that sign languages are somehow dependent on oral languages, that is, that they are oral language spelled out in gesture, or that they were invented by hearing people
      and
      On the whole, deaf sign languages are independent of oral languages and follow their own paths of developmental. For example, British Sign Language and American Sign Language are quite different and mutually unintelligible, even though the hearing people of Britain and America share the same oral language.
      You know what would really spoil those deaf kids is, instead of a robot doing sign language, a robot that shows images or words based on what a speaker says.

      That doesn't really sound like a robot, but speech recognition software connected to a teleprompter (or monitor)
      --
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    2. Re:How to sign First Post? by Anonymous Coward · · Score: 2, Informative

      I believe it's a joke... but just to point out, there's ASL and BSL and...

    3. Re:How to sign First Post? by Jugalator · · Score: 2, Informative

      Unfortunately, no ;-)

      --
      Beware: In C++, your friends can see your privates!
    4. Re:How to sign First Post? by lewp · · Score: 2, Informative

      Japanese has a whole bunch of kanji, but the various words in the language can be formed from a much smaller (hiragana, mentioned in TFA) character set that represents the various syllables in the words. These syllables are always pronounced consistently, unlike languages like English where sometimes it seems like nothing is consistent (and I'm a native speaker). Thus, the first thing that came to my mind was that teaching a robot spoken Japanese is probably quite a bit easier than teaching one English (though neither is a trivial task, obviously).

      I know nothing about Japanese sign language, and practically nothing about American sign language, but I believe American sign language shares a similarity to written Japanese in that there are signs for common words most any competent signer knows (similar to kanji), and any particularly uncommon words can be signed out with the letter (or in the Japanese case, hiragana syllable) signs. Thus, I doubt teaching a robot enough Japanese sign language to be understandable wouldn't be any harder than teaching a robot American sign language. Which, once you've turned the speech into letters/syllables in the speech recognition part and programmed in the gestures, would be pretty much trivial. Japanese children's TV and manga aimed at kids (I'm told) mimmicks this behavior by mixing the simple kanji school children will have learned at a young age with the hiragana for the words that aren't expected to be known.

      I'm shooting from the hip here based on what little experience I have with this stuff, so feel free to correct me, experts.

      --
      Game... blouses.
    5. Re:How to sign First Post? by magefile · · Score: 2, Informative

      I know nothing about Japanese sign language, and practically nothing about American sign language, but I believe American sign language shares a similarity to written Japanese in that there are signs for common words most any competent signer knows (similar to kanji), and any particularly uncommon words can be signed out with the letter (or in the Japanese case, hiragana syllable) signs.

      Sorta, but not quite. You can fingerspell words you don't know, and some words are derived from their associated letters (i.e., one of the possible signs for "what" looks a lot like a "W" snapped into a "T", and one of the signs for toilet looks like a shaken "T"), but some of these are frowned upon culturally (cultural baggage due to decades of surpression of sign by hearing people). Too, if you depend on fingerspelling too much, you'll find it difficult to communicate; you won't be able to receive well, and while Deaf will put up with receiving it if they know you're learning, it's not sign language, and everyone knows it. Doesn't fit in all that well with the syntax and grammar of ASL, either.

  2. Scutters! by LiquidCoooled · · Score: 2, Funny

    They only need to put it on wheels and it can become a scutter.

    Additional warning:
    Do not let this robot pat you on the back whilst near the top of the stairs.

    --
    liqbase :: faster than paper
  3. Over Kill? by xoip · · Score: 4, Insightful

    Call me culturally insensitive but, why not simply translate speech to text?

    1. Re:Over Kill? by tpgp · · Score: 4, Informative

      Call me culturally insensitive but, why not simply translate speech to text?

      Because signing is the native 'tongue' for most deaf people - and it is easier for them to communicate using sign language (over text) - just as its easier for you to understand speech (over text).

      Basically - the same reason that some British TV (and undoubtedly many other channels around the world) have a signer translating the news rather then scrolling text.

      --
      My pics.
  4. Does it also distinguish... by MadJo · · Score: 2, Interesting

    ... Does it also distinguish between different 'dialects' in sign language?
    I seem to recall that sign languages differ between countries, same as 'natural' language.

    However this is really great for deaf people.

  5. Picture of robotic hand by commodoresloat · · Score: 4, Funny
  6. More Useful As Software by Afty0r · · Score: 3, Insightful

    Would this not be more useful as software, able to render simple 3d hands with low microprocessor overheads, and preferably available for mobile phones and PDAs?

    Deaf people could carry a PDA, and when they need to find out what someone is saying, they can hold the PDA up like a microphone, and watch the screen, assuming the translation is at least reasonable accurate...
    Of course they could lipread too but some find that harder than others, and this could also be used eventually to cross language barriers?

    I imagine it's extremely hard to lipread a foreign language.

  7. Amy Pretty by Inkieminstrel · · Score: 3, Funny

    Tickle... Amy... Tickle

    http://www.imdb.com/title/tt0112715/

  8. I've gotta hand it to these scientists by commodoresloat · · Score: 2, Funny
    The robotic hand was shown at a two-legged robot tournament

    So it's not just a hand, but a hand with two legs!

  9. This gives a whole new meaning by sikandril · · Score: 5, Funny

    This gives a whole new meaning to the phrase "talk to the hand"

  10. it's about form factor by commodoresloat · · Score: 4, Funny
    Would this not be more useful as software?

    Yes but not nearly as intimidating. Who's going to get their lunch money taken -- deaf kid with a PDA, or deaf kid with a giant robot hand?

  11. Text is not the same by QMO · · Score: 2, Insightful

    Since sign languages are different all over the world, I don't know if there is the same problem in Japan, but:

    American Sign Language is not English (American or other).

    Thus, translating speech to ASL would reach people that that understand ASL but don't read Englih.

    --
    Exam 4/C again. Maybe I'll do better this time.
  12. The article makes no sense by MobyDisk · · Score: 2, Interesting
    ...that can covert spoken words and simple phrases into sign language...
    Ignoring the spelling, this implies that it has speech recognition. It converts SPOKEN words.
    ...recognizes the 50-character hiragana syllabary and about 10 simple phrases such as "ohayo" (good morning)...
    Hiragana is the Japanese phonetic alphabet, so it READS. Huh? Now, does it read only 10 simple phrases, or does it read anything plus it recognizes 10 simple audio phrases. I guess the breakthrough is the hand articulation and the idea, not the rest.
  13. Signing, but not reading by QMO · · Score: 2, Interesting

    After reading a couple of replies to my parent post, I was thinking about people that might understand signing, but not read or hear.

    It is my understanding that children can learn to sign before they can learn to read. (In fact hearing children can learn to sign before learning to speak.)

    Similarly, developmentally challenged people, such as certain people with Down's Syndrome, never learn to read, but can sign just fine.

    Reading takes certain specific brain functions, and it is not inconceivable that there are people who have had head trauma that damaged the reading part of their brain, and the hearing part, but can still understand sign language.

    These are just quick thoughts and may have lots of holes, and little sense. Please feel free to expand/correct/flame/whatever.

    --
    Exam 4/C again. Maybe I'll do better this time.
  14. Recognziing Sign Language by SWroclawski · · Score: 4, Interesting

    There's a researcher at Gallaudet working on the other side of this equation with a system designed to recognize sign langauge, which seems like a much harder problem.

    ASL isn't like English in that there are always specific words- a lot of it has to do with spacial context (where in the signing space the sign was made) and a whole class of signs that don't translate directly into words (they're hand shapes which can translate into an event or a description of an object or set of objects).

    And, as the research page shows, facial expressions and even facial movements can be part of a sign.

    Of course, this is American Sign Language, Japanese Sign Language may be very different.

  15. Can't see?, you can feel the fingers... by eMpTyBeitler · · Score: 2, Informative

    In the early 90's I worked with the robotic finger spelling hands called "Dexter" & "Ralph". Those devices were intended for individuals who are both deaf and blind. An individual with this kind of disability must rest their hand on the back of someone's hand (or on the back of the robotic hand) and feel letters as they are signed by the hand/fingers.

  16. MST3000 by GigsVT · · Score: 2, Funny

    Bah, Joel invented this on MST3000 years ago. Where's my edible sneakers?

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    I've had enough abrasive sigs. Kittens are cute and fuzzy.
  17. Oh for heaven's sake... by viksit · · Score: 2, Insightful

    Don't you guys ever consider the fact that some of these breakthroughs are not built for commercial applications?
    Instead of trying to analyze these achievements in the rather constricted mould of "Why not 3D graphics" or "Why not text on a screen", consider the use of this technology in the future - when say, the robots to help disabled people finally get off the assembly lines. By then, this process would've been refined to the point of being able to do an excellent job in communications.
    As a researcher in the field of robotics, a lot of work which I do or goes on around me, has definite implications - if not now, atleast in the next decade or so. And don't we owe to ourselves to look at developments such as this just for the *sake of the development itself*?

    --
    If Bill Gates had a dime for every time a Windows box crashed...oh, wait a minute - he already does.
  18. I bet deaf people hate it by Locke2005 · · Score: 2, Insightful

    From my observation, much of the "color" or entertainment value in signed conversations comes not from the movement of the hands but the expressions on the face etc. combined with the movements. Clearly, this robot is still nowhere near being capable of the same range of expression as a human being. As a simple test, I'd like to see the robot tell a joke and get the same laughs as a proficient human signer telling the same joke...

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
  19. Re:ASL users and bad reading by AhtirTano · · Score: 2, Insightful
    The grammar is, of course, different from English, but many children learn multiple languages growing up. So long as you're exposed to fluent speakers and forced to use the languages, anyone can pick up a language.

    But kids don't spontaneously pick up on writing. What you are asking these deaf children to do is learn ASL (which is basically not written), and the written form of a foreign language. That's like only hearing English (no writing) and only seeing written Chinese (no speaking). That's tricky to learn, and almost impossible to do without extensive training.