Placeholder Image

Subtitles section Play video

  • Throughout the history of computers

  • we've been striving to shorten the gap between us

  • and digital information,

  • the gap between our physical world

  • and the world in the screen

  • where our imagination can go wild.

  • And this gap has become shorter,

  • shorter, and even shorter,

  • and now this gap is shortened down

  • to less than a millimeter,

  • the thickness of a touch-screen glass,

  • and the power of computing

  • has become accessible to everyone.

  • But I wondered, what if there could be no boundary at all?

  • I started to imagine what this would look like.

  • First, I created this tool

  • which penetrates into the digital space,

  • so when you press it hard on the screen,

  • it transfers its physical body into pixels.

  • Designers can materialize their ideas

  • directly in 3D,

  • and surgeons can practice on virtual organs

  • underneath the screen.

  • So with this tool, this boundary has been broken.

  • But our two hands still remain outside the screen.

  • How can you reach inside and interact

  • with the digital information

  • using the full dexterity of our hands?

  • At Microsoft Applied Sciences,

  • along with my mentor Cati Boulanger,

  • I redesigned the computer

  • and turned a little space above the keyboard

  • into a digital workspace.

  • By combining a transparent display and depth cameras

  • for sensing your fingers and face,

  • now you can lift up your hands from the keyboard

  • and reach inside this 3D space

  • and grab pixels with your bare hands.

  • (Applause)

  • Because windows and files have a position in the real space,

  • selecting them is as easy as grabbing a book off your shelf.

  • Then you can flip through this book

  • while highlighting the lines, words

  • on the virtual touch pad below each floating window.

  • Architects can stretch or rotate the models

  • with their two hands directly.

  • So in these examples,

  • we are reaching into the digital world.

  • But how about reversing its role

  • and having the digital information reach us instead?

  • I'm sure many of us have had the experience

  • of buying and returning items online.

  • But now you don't have to worry about it.

  • What I got here is an online augmented fitting room.

  • This is a view that you get from

  • head-mounted or see-through display

  • when the system understands the geometry of your body.

  • Taking this idea further, I started to think,

  • instead of just seeing these pixels in our space,

  • how can we make it physical

  • so that we can touch and feel it?

  • What would such a future look like?

  • At MIT Media Lab, along with my advisor Hiroshi Ishii

  • and my collaborator Rehmi Post,

  • we created this one physical pixel.

  • Well, in this case, this spherical magnet

  • acts like a 3D pixel in our space,

  • which means that both computers and people

  • can move this object to anywhere

  • within this little 3D space.

  • What we did was essentially canceling gravity

  • and controlling the movement by combining

  • magnetic levitation and mechanical actuation

  • and sensing technologies.

  • And by digitally programming the object,

  • we are liberating the object from constraints

  • of time and space, which means that now,

  • human motions can be recorded and played back

  • and left permanently in the physical world.

  • So choreography can be taught physically over distance

  • and Michael Jordan's famous shooting can be replicated

  • over and over as a physical reality.

  • Students can use this as a tool

  • to learn about the complex concepts

  • such as planetary motion, physics,

  • and unlike computer screens or textbooks,

  • this is a real, tangible experience

  • that you can touch and feel, and it's very powerful.

  • And what's more exciting

  • than just turning what's currently in the computer physical

  • is to start imagining how programming the world

  • will alter even our daily physical activities.

  • (Laughter)

  • As you can see, the digital information

  • will not just show us something

  • but it will start directly acting upon us

  • as a part of our physical surroundings

  • without disconnecting ourselves from our world.

  • Today, we started by talking about the boundary,

  • but if we remove this boundary,

  • the only boundary left is our imagination.

  • Thank you.

  • (Applause)

Throughout the history of computers

Subtitles and vocabulary

Operation of videos Adjust the video here to display the subtitles

B1 TED digital physical boundary space pixel

【TED】Jinha Lee: Reach into the computer and grab a pixel (Jinha Lee: Reach into the computer and grab a pixel)

  • 2143 157
    VoiceTube posted on 2013/11/10
Video vocabulary