TED2006
Jeff Han: The radical promise of the multi-touch interface
Jeff Han demonstra o seu inovador ecrã táctil
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Jeff Han mostra uma interface de um ecrã de computador sensível à pressão e multi-toque escalável e barata que poderá ditar o fim do apontar e carregar.
Jeff Han - Human-computer interface designer
After years of research on touch-driven computer displays, Jeff Han has created a simple, multi-touch, multi-user screen interface that just might herald the end of the point-and-click era. Full bio
After years of research on touch-driven computer displays, Jeff Han has created a simple, multi-touch, multi-user screen interface that just might herald the end of the point-and-click era. Full bio
Double-click the English transcript below to play the video.
Estou mesmo muito feliz por estar aqui hoje
00:24
I'm really excited to be here today.
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I'll show you some stuff
that's just ready to come out of the lab,
that's just ready to come out of the lab,
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pois vou mostrar-vos algo literalmente acabado de sair do laboratório.
Estou muito contente por vocês serem os primeiros
00:29
literally, and I'm really glad
that you guys
that you guys
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00:31
are going to be among
the first to see it in person,
the first to see it in person,
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a ver isto pessoalmente pois acredito que irá mudar
00:34
because I really think this is going
to really change
to really change
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a forma como iremos interagir com máquinas no futuro.
00:36
the way we interact
with machines from this point on.
with machines from this point on.
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Esta é uma mesa de retroprojecção. Tem cerca de 91 centímetros
00:39
Now, this is a rear-projected
drafting table.
drafting table.
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00:42
It's about 36 inches wide
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e está equipada com um sensor de multi-toque.
00:43
and it's equipped
with a multi-touch sensor.
with a multi-touch sensor.
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00:45
Normal touch sensors that you see,
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Os sensores normais dos quiosques ou quadros interactivos
00:47
like on a kiosk
or interactive whiteboards,
or interactive whiteboards,
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só registam um ponto de contacto de cada vez.
00:49
can only register one point
of contact at a time.
of contact at a time.
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Este permite-nos utilizar vários pontos ao mesmo tempo.
00:52
This thing allows you to have
multiple points at the same time.
multiple points at the same time.
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Podem utilizar ambas as mãos, alguns dedos
00:55
They can use both my hands;
I can use chording actions;
I can use chording actions;
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e posso até utilizar os 10 dedos se quiser.
00:59
I can just go right up and use
all 10 fingers if I wanted to.
all 10 fingers if I wanted to.
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Desta forma.
01:02
You know, like that.
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01:03
Now, multi-touch sensing
isn't completely new.
isn't completely new.
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O sistema de multi-toque não é algo recente.
Pessoas como Bill Buxton trabalharam com ele nos anos 80.
01:08
People like Bill Buxton have been
playing around with it in the '80s.
playing around with it in the '80s.
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No entanto, a minha abordagem aqui é em alta resolução,
01:11
However, the approach I built here
is actually high-resolution,
is actually high-resolution,
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01:15
low-cost, and probably
most importantly, very scalable.
most importantly, very scalable.
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baixo custo e mais importante, muito escalável.
01:19
So, the technology, you know,
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A tecnologia não é a parte mais excitante aqui
01:21
isn't the most exciting thing
here right now,
here right now,
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além do facto de ter uma nova acessibilidade.
01:23
other than probably
its newfound accessibility.
its newfound accessibility.
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O interessante aqui é o que podemos fazer com ela
01:26
What's really interesting here
is what you can do with it
is what you can do with it
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01:29
and the kind of interfaces
you can build on top of it.
you can build on top of it.
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e os tipos de interfaces que podemos incorporar. Vamos ver.
01:33
So let's see.
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Por exemplo, temos aqui uma aplicação de um candeeiro de lava.
01:35
So, for instance, we have
a lava lamp application here.
a lava lamp application here.
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01:39
Now, you can see,
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Posso utilizar ambas as mãos para espremer e juntar bolhas.
01:41
I can use both of my hands to kind
of squeeze and put the blobs together.
of squeeze and put the blobs together.
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Posso injectar calor no sistema assim
01:44
I can inject heat into the system here,
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ou posso dividi-lo com 2 dedos.
01:47
or I can pull it apart
with two of my fingers.
with two of my fingers.
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Completamente intuitivo, não há manual de instruções.
01:49
It's completely intuitive;
there's no instruction manual.
there's no instruction manual.
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A interface acaba por desaparecer.
01:52
The interface just kind of disappears.
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01:54
This started out as a screensaver app
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Começou como uma protecção de ecrã de uma das doutorandas
01:55
that one of the Ph.D. students
in our lab, Ilya Rosenberg, made.
in our lab, Ilya Rosenberg, made.
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do nosso laboratório, Ilya Rosenberg. Mas a sua verdadeira identidade surge aqui.
01:59
But I think its true identity
comes out here.
comes out here.
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O bom dos sensores multi-toque é que
02:04
Now what's great about a multi-touch
sensor is that, you know,
sensor is that, you know,
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posso fazer isto com vários dedos.
02:07
I could be doing this
with as many fingers here,
with as many fingers here,
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02:09
but of course multi-touch
also inherently means multi-user.
also inherently means multi-user.
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Mas o multi-toque, inerentemente, significa vários utilizadores.
02:12
Chris could be interacting
with another part of Lava,
with another part of Lava,
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Então, o Chris podia estar aqui a interagir com outra parte da lava
enquanto eu ficava nesta parte. Imaginem um novo género de ferramenta de construção
02:15
while I play around with it here.
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02:17
You can imagine
a new kind of sculpting tool,
a new kind of sculpting tool,
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onde estou a aquecer algo, a torná-lo maleável
02:19
where I'm kind of warming something up,
making it malleable,
making it malleable,
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e deixo-o arrefecer e solidificar num determinado estado.
02:22
and then letting it cool down
and solidifying in a certain state.
and solidifying in a certain state.
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02:29
Google should have
something like this in their lobby.
something like this in their lobby.
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A Google devia ter algo assim na sua entrada.
02:32
(Laughter)
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02:38
I'll show you a little more
of a concrete example here,
of a concrete example here,
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Vou mostrar-vos uma coisa, um exemplo mais concreto, enquanto carrega.
02:41
as this thing loads.
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Esta é uma aplicação de fotografia.
02:43
This is a photographer's
light-box application.
light-box application.
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02:45
Again, I can use both of my hands
to interact and move photos around.
to interact and move photos around.
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Mais uma vez, posso utilizar ambas as mãos para interagir e mover as fotos.
02:49
But what's even cooler
is that if I have two fingers,
is that if I have two fingers,
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Mas o melhor é que se utilizar os dois dedos,
02:53
I can actually grab a photo and then
stretch it out like that really easily.
stretch it out like that really easily.
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posso mesmo agarrar numa foto e esticá-la assim muito facilmente.
Posso vê-la, fazer zoom e rodá-la sem esforço.
02:57
I can pan, zoom
and rotate it effortlessly.
and rotate it effortlessly.
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Posso fazê-lo assim, grosseiramente, com as mãos
03:01
I can do that grossly
with both of my hands,
with both of my hands,
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ou com apenas 2 dedos.
03:03
or I can do it just with two fingers
on each of my hands together.
on each of my hands together.
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03:06
If I grab the canvas, I can do
the same thing -- stretch it out.
the same thing -- stretch it out.
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Se agarrar nas extremidades, posso fazer o mesmo, esticá-las.
Posso fazê-lo em simultâneo, enquanto seguro aqui
03:09
I can do it simultaneously,
holding this down,
holding this down,
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e posso agarrar outra e estico-a assim.
03:11
and gripping on another one,
stretching this out.
stretching this out.
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De novo, a interface desaparece.
03:14
Again, the interface just disappears here.
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Não há manuais. É exactamente o que esperamos,
03:16
There's no manual.
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03:17
This is exactly what you expect,
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03:19
especially if you haven't interacted
with a computer before.
with a computer before.
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especialmente se nunca utilizaram um computador antes.
03:23
Now, when you have initiatives
like the $100 laptop,
like the $100 laptop,
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Quando temos iniciativas como portáteis de 100 dólares,
03:25
I kind of cringe at the idea
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tremo só de pensar que vamos introduzir uma nova geração de pessoas
03:27
of introducing a whole new
generation to computing
generation to computing
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à informática com esta interface padrão do Windows e do rato.
03:29
with this standard
mouse-and-windows-pointer interface.
mouse-and-windows-pointer interface.
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03:32
This is something that I think
is really the way
is really the way
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Acredito que esta é a forma como deveremos interagir com máquinas
03:35
we should be interacting
with machines from now on.
with machines from now on.
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a partir de agora.
03:38
(Applause)
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03:45
Now, of course, I can bring up a keyboard.
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Agora, também posso utilizar um teclado.
03:47
(Laughter)
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03:52
And I can bring that around,
put that up there.
put that up there.
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E posso puxar isto e colocar em cima.
03:55
Obviously, this is a standard keyboard,
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Obviamente, este é um teclado normal,
mas posso mudar o tamanho de forma a adaptá-lo às minhas mãos.
03:57
but of course I can rescale it
to make it work well for my hands.
to make it work well for my hands.
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E isso é muito importante pois, actualmente, não faz sentido
04:00
That's really important, because
there's no reason in this day and age
there's no reason in this day and age
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termo-nos de nos conformar a dispositivos físicos.
04:03
that we should be conforming
to a physical device.
to a physical device.
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Isso leva a coisas más, tal como LER.
04:05
That leads to bad things, like RSI.
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04:07
We have so much technology nowadays
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Actualmente temos tanta tecnologia que as interfaces
04:10
that these interfaces
should start conforming to us.
should start conforming to us.
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deviam começar a adaptar-se a nós.
04:14
There's so little applied now
to actually improving
to actually improving
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Há tão pouco a ser aplicado actualmente que melhora
04:18
the way we interact with interfaces
from this point on.
from this point on.
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a forma como interagimos com as interfaces.
Este teclado é possivelmente a abordagem errada aqui.
04:21
This keyboard is probably actually
the really wrong direction to go.
the really wrong direction to go.
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Podemos imaginar, no futuro, ao desenvolvermos este tipo de tecnologia,
04:24
You can imagine, in the future,
as we develop this kind of technology,
as we develop this kind of technology,
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04:27
a keyboard that kind of automatically
drifts as your hand moves away,
drifts as your hand moves away,
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um teclado que se mexe automaticamente ao afastarmos as mãos
e que antecipa a tecla que estamos a tentar tocar com as mãos.
04:31
and really intelligently anticipates
which key you're trying to stroke.
which key you're trying to stroke.
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Novamente, não é fantástico?
04:35
So -- again, isn't this great?
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04:39
(Laughter)
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Onde fica o laboratório?
04:41
Audience: Where's your lab?
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04:42
Jeff Han: I'm a research scientist
at NYU in New York.
at NYU in New York.
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Sou investigador na NYU em Nova Iorque.
Aqui está um exemplo de outra aplicação. Posso fazer estas bolas.
04:49
Here's an example of another kind of app.
I can make these little fuzz balls.
I can make these little fuzz balls.
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04:53
It'll remember the strokes I'm making.
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Vai lembrar-se das minhas passagens. Claro que o posso fazer com as mãos.
04:55
Of course I can do it with all my hands.
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É sensível à pressão, como podem ver.
04:57
It's pressure-sensitive.
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04:59
What's neat about that is,
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Mas o bom disto, novamente, mostrei que com dois dedos podemos fazer
05:01
I showed that two-finger gesture
that zooms in really quickly.
that zooms in really quickly.
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zoom muito rápido pois não temos de mudar para a opção da mão
05:04
Because you don't have
to switch to a hand tool
to switch to a hand tool
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ou para a opção da lupa.
05:06
or the magnifying glass tool,
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Podemos continuar a fazer coisas em várias escalas, tudo ao mesmo tempo.
05:08
you can just continuously make things
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05:10
in real multiple scales,
all at the same time.
all at the same time.
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Posso criar grandes coisas mas também posso voltar para trás rapidamente
05:13
I can create big things out here,
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05:15
but I can go back
and really quickly go back
and really quickly go back
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ao ponto onde comecei e fazer coisas ainda mais pequenas.
05:17
to where I started,
and make even smaller things here.
and make even smaller things here.
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Agora, isto vai ser muito importante quando começarmos a utilizar funções
05:21
This is going to be really important
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05:23
as we start getting to things
like data visualization.
like data visualization.
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como visualização de dados. Por exemplo, todos gostamos da palestra de Hans Rosling
05:26
For instance, I think
we all enjoyed Hans Rosling's talk,
we all enjoyed Hans Rosling's talk,
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05:28
and he really emphasized the fact
I've been thinking about for a long time:
I've been thinking about for a long time:
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e ele demarcou um facto que tenho estado a pensar há muito tempo também:
Todo nós temos imensos dados mas, por algum motivo, estão ali estáticos.
05:32
We have all this great data,
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05:33
but for some reason,
it's just sitting there.
it's just sitting there.
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Não os estamos a utilizar e um dos motivos que leva a isso deve-se ao facto
05:35
We're not accessing it.
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05:37
And one of the reasons why I think that is
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05:40
will be helped by things like graphics
and visualization and inference tools,
and visualization and inference tools,
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de que estamos a ser ajudados por gráficos e ferramentas de visualização e dedução.
Mas também acho que uma grande parte irá começar a ter melhores interfaces.
05:45
but I also think a big part of it
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05:47
is going to be having better interfaces,
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Será capaz de mergulhar nestes dados, enquanto mantemos a visão global.
05:49
to be able to drill down
into this kind of data,
into this kind of data,
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05:51
while still thinking
about the big picture here.
about the big picture here.
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05:54
Let me show you another app here.
This is called WorldWind.
This is called WorldWind.
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Deixem-me mostrar outra aplicação. Esta chama-se WorldWind.
Foi feita pela NASA. Todos conhecemos o Google Earth.
05:57
It's done by NASA.
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05:58
We've all seen Google Earth;
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Esta é uma versão open-source disso. Há plug-ins para carregar
06:01
this is an open-source version of that.
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06:03
There are plug-ins to be able
to load in different data sets
to load in different data sets
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conjuntos de dados diferentes que a NASA recolheu ao longo dos anos.
06:07
that NASA's collected over the years.
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06:08
As you can see, I can use
the same two-fingered gestures
the same two-fingered gestures
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Mas como podem ver, posso utilizar gestos com dois dedos
para descer e entrar suavemente. Mais uma vez, sem interface.
06:11
to go down and go in really seamlessly.
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06:13
There's no interface, again.
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Permite a qualquer pessoa entrar e fazer aquilo que pretende.
06:15
It really allows anybody
to kind of go in --
to kind of go in --
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06:18
and it just does
what you'd expect, you know?
what you'd expect, you know?
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Novamente, sem interface. A interface desaparece.
06:21
Again, there's just no interface here.
The interface just disappears.
The interface just disappears.
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06:27
I can switch to different data views.
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Posso mudar para diferentes vista de dados. É o bom desta aplicação.
06:28
That's what's neat about this app here.
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Aqui está. A NASA é muito fixe. Eles têm estas imagens hiperespectrais
06:31
NASA's really cool.
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06:32
These hyper-spectral images
are false-colored so you can --
are false-colored so you can --
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cuja cor é adicionada posteriormente. Muito bom para determinar uma utilização vegetativa. Vamos voltar a isto.
06:35
it's really good for determining
vegetative use.
vegetative use.
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06:39
Well, let's go back to this.
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O óptimo das aplicações de mapeamento
06:44
The great thing
about mapping applications --
about mapping applications --
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é não ser em 2D mas um género de 3D. Novamente, interface em vários pontos.
06:46
it's not really 2D, it's 3D.
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06:48
So, again, with a multi-point interface,
you can do a gesture like this --
you can do a gesture like this --
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Podemos fazer um gesto assim para o inclinar assim.
06:51
so you can be able
to tilt around like that --
to tilt around like that --
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Não está apenas relegado a um movimento e visualização em 2D.
06:55
(Surprised laughter)
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06:56
It's not just simply relegated
to a kind of 2D panning and motion.
to a kind of 2D panning and motion.
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Este gesto que desenvolvemos, de novo, basta utilizar dois dedos,
07:00
This gesture is just putting
two fingers down --
two fingers down --
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está a definir um eixo de inclinação e podemos subir e descer assim.
07:02
it's defining an axis of tilt --
and I can tilt up and down that way.
and I can tilt up and down that way.
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Isto foi algo que nos surgiu na altura.
07:06
We just came up with that on the spot,
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Não é provavelmente o mais correcto de se fazer
07:08
it's probably not the right thing to do,
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mas há coisas tão interessantes que podemos fazer com esta interface.
07:10
but there's such interesting things
you can do with this interface.
you can do with this interface.
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07:15
It's just so much fun
playing around with it, too.
playing around with it, too.
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Também é muito divertido brincar com isto.
07:17
(Laughter)
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E a última coisa que queria mostrar é...
07:19
And so the last thing
I want to show you is --
I want to show you is --
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07:22
I'm sure we can all think
of a lot of entertainment apps
of a lot of entertainment apps
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Acredito que podemos todos pensar em aplicações de entretenimento
que podemos utilizar com isto.
07:24
that you can do with this thing.
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Eu estou mais interessante nestas aplicações criativas que podemos utilizar.
07:26
I'm more interested in the creative
applications we can do with this.
applications we can do with this.
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Aqui está uma aplicação simples. Posso desenhar uma curva.
07:30
Now, here's a simple application here --
I can draw out a curve.
I can draw out a curve.
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E quando a fecho, torna-se numa personagem.
07:35
And when I close it,
it becomes a character.
it becomes a character.
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07:38
But the neat thing about it
is I can add control points.
is I can add control points.
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Mas, o bom disto, é que posso juntar pontos de controlo
07:41
And then what I can do is manipulate them
with both of my fingers at the same time.
with both of my fingers at the same time.
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e depois posso manipulá-los com os meus dedos ao mesmo tempo.
07:45
And you notice what it does.
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E repararam no que faz.
07:48
It's kind of a puppeteering thing,
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Parece uma marioneta, onde posso utilizar
07:50
where I can use as many fingers
as I have to draw and make --
as I have to draw and make --
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todos os meus dedos para desenhar e fazer...
Há muito matemática em segundo plano aqui
08:02
Now, there's a lot of actual math
going on under here
going on under here
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08:05
for this to control this mesh
and do the right thing.
and do the right thing.
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para controlar este conjunto e fazer as coisas bem.
Quero dizer, esta técnica de ser capaz de manipular este conjunto
08:10
This technique of being able to manipulate
a mesh here, with multiple control points,
a mesh here, with multiple control points,
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com vários pontos de controlo é realmente algo de última geração.
08:15
is actually state of the art.
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Foi lançada na Siggraph no ano passado
08:17
It was released at SIGGRAPH last year.
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mas é um grande exemplo do género de investigação que adoro.
08:19
It's a great example
of the kind of research I really love:
of the kind of research I really love:
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Todo este poder de computação para fazer com que tudo corra bem.
08:22
all this compute power
to make things do the right things,
to make things do the right things,
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Coisas intuitivas que façam o que queremos.
08:24
intuitive things,
to do exactly what you expect.
to do exactly what you expect.
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08:31
So, multi-touch interaction research
is a very active field right now in HCI.
is a very active field right now in HCI.
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A investigação da interacção por multi-toque é um campo muito activo actualmente no IHC.
08:36
I'm not the only one doing it,
a lot of other people are getting into it.
a lot of other people are getting into it.
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Não sou o único a fazê-lo, há muitas mais pessoas na área.
Este tipo de tecnologia vai permitir que muitas mais pessoas a explorem
08:39
This kind of technology is going to let
even more people get into it,
even more people get into it,
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e estou ansioso por interagir convosco
08:42
I'm looking forward to interacting
with all of you over the next few days
with all of you over the next few days
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durante os próximos dias e ver como o posso aplicar aos vossos campos.
08:46
and seeing how it can apply
to your respective fields.
to your respective fields.
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Obrigado.
08:48
Thank you.
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(Aplausos)
08:50
(Applause)
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ABOUT THE SPEAKER
Jeff Han - Human-computer interface designerAfter years of research on touch-driven computer displays, Jeff Han has created a simple, multi-touch, multi-user screen interface that just might herald the end of the point-and-click era.
Why you should listen
Jeff Han's intuitive "interface-free" computer displays -- controlled by the touch of fingertips -- will change forever the way you think about computers. At TED 2006, the audience whistled, clapped and gasped audibly as Han demoed (for the first time publicly) his prototype drafting table-cum-touch display, developed at NYU's Courant Institute of Mathematical Sciences. The demo included a virtual lightbox, where he moved photos by fingertip -- as if they were paper on a desk -- flicking them across the screen and zooming in and out by pinching two fingers together, as well as a Google Earth-like map that he tilted and flew over with simple moves.
When the demo hit the web, bloggers and YouTubers made him a bit of a megastar. (His video has been watched more than 600,000 times on YouTube alone; "Amazing," "Incredible" and "Freaking awesome" are the typical responses there. Also: "When can I buy one?") After this legendary demo, Han launched a startup called Perceptive Pixel -- and when he came back to TED2007, he and his team brought an entire interactive wall, where TEDsters lined up to play virtual guitars. His talent and reputation earned him a place on Time Magazine's 2008 list of the world's 100 Most Influential People.
Jeff Han | Speaker | TED.com