to achieve certain capabilities, or achieve certain goals.

來完成特定功能，或達成特定目標。

And this is essential to the progress of science,

這是科學進步

or exploration of what is possible.

和探索可能性的要素。

But it creates this unfortunate situation

但有點可惜的是

where a tiny, tiny fraction of the world

世界上有些地方，

can actually participate in this exploration

無法參與這些探索

or can benefit from that technology.

或是無法從這些科技中受益。

Something that motivates me,

因而激勵我進行研究，

and gets me really excited about my research,

並且讓我感到振奮的是，

is when I see simple opportunities

我發現可以透過一些簡單的方法，

to drastically change that distribution and make the technology accessible

改變傳播的過程，

to a much wider percentage of the population.

讓更多人

I'm going to show you two videos that have gotten a lot of attention

從這些科技中受益。

that I think embody this philosophy.

我想給大家看二支

And they actually use the Nintendo Wii Remote.

最近受到囑目的影片，

For those of you who aren't familiar with this device,

它們具體展現了這個想法。

it's a $40 video game controller.

我用的是任天堂 Wii 遙桿

And it's mostly advertised for its motion-sensing capabilities:

對於知道它的人來說，

so you can swing a tennis racket, or hit a baseball bat.

它不過是市價 40 美元的電玩控制器。

But what actually interests me a lot more

它是用來做動作感應，

is the fact that in the tip of each controller

能用它做出揮動網球拍，或打擊棒球的動作。

is a relatively high-performing infrared camera.

但事實上，真正吸引我的是，

And I'm going to show you two demos of why this is useful.

它前端這個

So here, I have my computer set up with the projector,

高性能紅外線鏡頭。

and I have a Wii Remote sitting on top of it.

我將要給你看兩個示範，說明它為什麼很有用。

And, for example, if you're in a school that doesn't have a lot money,

這邊架設了電腦和投影機，

probably a lot of schools,

Wii 遙控器則放在上面。

or if you're in an office environment, and you want an interactive whiteboard,

假設你的學校

normally these cost about two to three thousand dollars.

沒有錢，就如同大部份學校一樣，

So I'm going to show you how to create one with a Wii Remote.

或是你在一個辦公室裡

Now, this requires another piece of hardware,

需要一個互動式電子白板，

which is this infrared pen.

它的市價大概要 2 至 4 千美元。

You can probably make this yourself for about five dollars

我來告訴你們如何

with a quick trip to the Radio Shack.

用 Wii 遙控器製做一個電子白板。

It's got a battery, a button and an infrared LED --

你需要另外做一支紅外線筆

you guys can't see it --

做一支紅外線筆。

but it turns on whenever I push the button.

只要到 RadioShack（美國電子產品零售商）

Now, what this means is that if I run this piece of software,

花 5 美元購買以下零件。

the camera sees the infrared dot,

1 顆電池、1 個按鈕、1 個紅外線 LED（發光二極體），

and I can register the location of the camera pixels

按下按鈕，紅外線 LED 就會發光，

to the projector pixels.

當然，肉眼是看不見紅外線的。

And now this is like an interactive whiteboard surface.

現在讓我執行這個軟體，

(Applause)

就能讓鏡頭能看見紅外線光點，

So for about $50 of hardware, you can have your own whiteboard.

接下來把它們的位置由鏡頭像素，

This is Adobe Photoshop.

對應到投影機像素。現在它成了互動式電子白板啦！

(Applause)

（掌聲）

Thank you.

只要 50 美元，你就能擁有自己的電子白板。

(Laughter)

這個是 Adobe Photoshop。

The software for this I've actually put on my website

（掌聲）

and have let people download it for free.

謝謝。

In the three months this project has been public,

（笑聲）

it's been downloaded over half a million times.

這個程式放在我的網站

So teachers and students all around the world

免費下載。

are already using this.

自公開以來，

(Applause)

它在 3 個月內已被下載數十萬次。

Although it does do it for 50 dollars,

現在世界各地的老師學生

there are some limitations of this approach.

已經開始使用它。

You get about 80 percent of the way there, for one percent of the cost.

（掌聲）

Another nice thing is that a camera can see multiple dots,

我要聲明一下，它雖然只要 50 美元，

so this is actually a multi-touch, interactive whiteboard system as well.

而且，這個做法仍有些限制。

(Applause)

不過想想，以 1% 的成本

For the second demo,

就能達到 80% 的效果。

I have this Wii Remote that's actually next to the TV.

另一個好消息是，這個鏡頭可以同時辨識多個光點，

So it's pointing away from the display, rather than pointing at the display.

所以它還是個

And why this is interesting

多點觸控電子白板。

is that if you put on, say, a pair of safety glasses,

（掌聲）

that have two infrared dots in them,

在第二個展示中，我將 Wii 遙控器

they are going to give the computer an approximation of your head location.

放在電視旁邊。

And why this is interesting

這次它不再指向螢幕

is I have this sort of application running on the computer monitor,

而是指向看電視的人。

which has a 3D room, with some targets floating in it.

有趣的是，

And you can see that it looks like a 3D room.

如果我在這副眼鏡上頭

kind of like a video game, it sort of looks 3D,

放入 2 個紅外線光點

but for the most part, the image looks pretty flat,

它就能告訴電腦

and bound to the surface of the screen.

你的頭部位置。

But if we turn on head tracking --

更有趣的是，

the computer can change the image that's on the screen

這個電腦螢幕正執行著一個程式，

and make it respond to the head movements.

顯示一些標靶漂浮在 3D 房間裡。

So let's switch back to that.

就像很多遊戲裡看到的一樣，

(Laughter)

它看起來像是 3D，

(Applause)

不過這些影像不但看起來很平，

So this has actually been a little bit startling

也釘在畫面上不能動。

to the game-development community.

現在如果我們把頭部追蹤打開，

(Laughter)

電腦就能改變螢幕上的影像，

Because this is about 10 dollars of additional hardware

讓它們與你的頭部互動。

if you already have a Nintendo Wii.

我們回頭看看。

So I'm looking forward to seeing some games,

（笑聲）

and actually Louis Castle, that's him down there,

（掌聲）

last week announced that Electronic Arts, one of the largest game publishers,

這著實令遊戲開發業者

is releasing a game in May that has a little Easter egg feature

吃驚。

for supporting this type of head tracking.

（笑聲）

And that's from less than five months

因為只要你擁有任天堂 Wii，

from a prototype in my lab to a major commercial product.

再加上 10 美元的額外硬體費用就行了。

(Applause)

我希望遊戲採用它

Thank you.

上週 Lou Castle（EA 副總裁），也就是台下坐的這位，

(Applause)

宣佈 EA（美商藝電），

But actually, to me, what's almost more interesting

最大的遊戲發行商之一，將在 5 月發表一款遊戲

than either of these two projects

附有支援頭部

is how people actually found out about them.

追蹤的隱藏功能。

YouTube has really changed the way, or changed the speed,

在不到 5 個月的時間內，

in which a single individual

將我的實驗原型變成為商業產品

can actually spread an idea around the world.

（掌聲）

I'm doing some research in my lab with a video camera,

謝謝。

and within the first week, a million people had seen this work,

事實上，對我而言最有意思的，

and literally within days, engineers, teachers and students

不是這兩個實驗本身，

from around the world were already posting their own YouTube videos

而是人們是如何發現這兩個實驗的。

of them using my system or derivatives of this work.

Youtube 改變了

So I hope to see more of that in the future,

將個人想法

and hope online video distribution to be embraced by the research community.

散播到全世界的速度或方式。

So thank you very much.

我不過是使用攝影機，將我在實驗室內的研究錄下，

(Applause)

在一週之內，就有一百萬人看到，