TED2008
Johnny Lee: Free or cheap Wii Remote hacks
強尼•李 — Will 搖桿居然能這樣用
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強尼•李 (Johnny Lee) 在演講中展示了如何將時髦流行的 Wii 遙桿變成有用的教育工具。也就是說，只要花 40 美元，就可以等同擁有上千美元的數位白板、多點觸控大螢幕和頭戴式 3D 瀏覽器。
Johnny Lee - Human-computer interaction researcher
Researcher Johnny Lee became a YouTube star with his demo of Wii Remote hacks -- bending the low-cost game piece to power an interactive whiteboard, a multitouch surface, a head-mounted display ... Full bio
Researcher Johnny Lee became a YouTube star with his demo of Wii Remote hacks -- bending the low-cost game piece to power an interactive whiteboard, a multitouch surface, a head-mounted display ... Full bio
Double-click the English transcript below to play the video.
00:19
So, as researchers, something that we often do is use immense resources
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身為研究人員，我們常會運用大量的資源
00:24
to achieve certain capabilities, or achieve certain goals.
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來完成特定功能，或達成特定目標。
00:27
And this is essential to the progress of science,
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這是科學進步
00:29
or exploration of what is possible.
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和探索可能性的要素。
00:31
But it sort of creates this unfortunate situation
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但有點可惜的是
00:34
where a tiny, tiny fraction of the world
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世界上有些地方，
00:36
can actually participate in this exploration
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無法參與這些探索
00:38
or can benefit from that technology.
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或是無法從這些科技中受益。
00:40
And something that motivates me,
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因而激勵我進行研究，
00:41
and what gets me really excited about my research,
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並且讓我感到振奮的是，
00:43
is when I see simple opportunities
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我發現可以透過一些簡單的方法，
00:45
to drastically change that distribution
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改變傳播的過程，
00:47
and make the technology accessible
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讓更多人
00:49
to a much wider percentage of the population.
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從這些科技中受益。
00:51
And I'm going to show you two videos
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我想給大家看二支
00:53
that have gotten a lot of attention recently
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最近受到囑目的影片，
00:54
that I think embody this philosophy.
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它們具體展現了這個想法。
00:56
And they actually use the Nintendo Wii remote.
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我用的是任天堂 Wii 遙桿
00:59
Now, for those of you who aren't familiar with this device,
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對於知道它的人來說，
01:01
it's a $40 video game controller.
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它不過是市價 40 美元的電玩控制器。
01:04
And it's mostly advertised for its motion sensor capabilities:
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它是用來做動作感應，
01:07
so you can swing a tennis racket, or hit a baseball bat.
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能用它做出揮動網球拍，或打擊棒球的動作。
01:10
But what actually interests me a lot more
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但事實上，真正吸引我的是，
01:12
is the fact that in the tip of each controller
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它前端這個
01:14
is a relatively high-performing infrared camera.
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高性能紅外線鏡頭。
01:17
And I'm going to show you two demos of why this is useful.
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我將要給你看兩個示範，說明它為什麼很有用。
01:21
So here, I have my computer set up with the projector,
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這邊架設了電腦和投影機，
01:25
and I have a Wii remote sitting on top of it.
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Wii 遙控器則放在上面。
01:27
And, for example, if you're in a school
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假設你的學校
01:30
that doesn't have a lot money, which is probably a lot of schools,
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沒有錢，就如同大部份學校一樣，
01:32
or if you're in an office environment,
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或是你在一個辦公室裡
01:34
and you want an interactive whiteboard,
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需要一個互動式電子白板，
01:36
normally these cost about two to three thousand dollars.
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它的市價大概要 2 至 4 千美元。
01:39
So what I'm going to show you how to do
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我來告訴你們如何
01:41
is how to create one with a Wii remote.
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用 Wii 遙控器製做一個電子白板。
01:43
Now, this requires another piece of hardware,
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你需要另外做一支紅外線筆
01:46
which is this infrared pen.
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做一支紅外線筆。
01:48
You can probably make this yourself for about five dollars
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只要到 RadioShack（美國電子產品零售商）
01:51
with a quick trip to the Radio Shack.
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花 5 美元購買以下零件。
01:52
It's essentially got a battery, a button and an infrared LED,
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1 顆電池、1 個按鈕、1 個紅外線 LED（發光二極體），
01:55
and it turns on -- you guys can't see it --
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按下按鈕，紅外線 LED 就會發光，
01:57
but it turns on whenever I push the button.
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當然，肉眼是看不見紅外線的。
01:59
Now, what this means is that if I run this piece of software,
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現在讓我執行這個軟體，
02:03
the camera sees the infrared dot,
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就能讓鏡頭能看見紅外線光點，
02:07
and I can register the location of the camera pixels
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接下來把它們的位置由鏡頭像素，
02:12
to the projector pixels. And now this is like a whiteboard surface.
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對應到投影機像素。現在它成了互動式電子白板啦！
02:15
(Applause)
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（掌聲）
02:18
So for about $50 of hardware, you can have your own whiteboard.
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只要 50 美元，你就能擁有自己的電子白板。
02:21
This is Adobe Photoshop.
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這個是 Adobe Photoshop。
02:24
(Applause)
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（掌聲）
02:30
Thank you.
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謝謝。
02:31
(Laughter)
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（笑聲）
02:32
Now, the software for this I've actually put on my website
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這個程式放在我的網站
02:35
and have let people download it for free.
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免費下載。
02:37
And in the three months that this project has been public,
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自公開以來，
02:39
it's been downloaded over half a million times.
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它在 3 個月內已被下載數十萬次。
02:41
So teachers and students all around the world
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現在世界各地的老師學生
02:44
are already using this.
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已經開始使用它。
02:45
(Applause)
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（掌聲）
02:51
I want to quickly say that although it does do it for 50 dollars,
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我要聲明一下，它雖然只要 50 美元，
02:53
there are some limitations of this approach.
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而且，這個做法仍有些限制。
02:55
But you get about 80 percent of the way there,
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不過想想，以 1% 的成本
02:57
for about one percent of the cost.
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就能達到 80% 的效果。
02:58
Another nice thing is that a camera can see multiple dots,
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另一個好消息是，這個鏡頭可以同時辨識多個光點，
03:01
so this is actually
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所以它還是個
03:02
a multi-touch, interactive whiteboard system as well.
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多點觸控電子白板。
03:04
(Applause)
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（掌聲）
03:07
For the second demo, I have this Wii remote
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在第二個展示中，我將 Wii 遙控器
03:09
that's actually next to the TV.
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放在電視旁邊。
03:11
So it's pointing away from the display,
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這次它不再指向螢幕
03:12
rather than pointing at the display.
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而是指向看電視的人。
03:15
And why this is interesting
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有趣的是，
03:17
is that if you put on, say, a pair of safety glasses,
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如果我在這副眼鏡上頭
03:21
that have two infrared dots in them,
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放入 2 個紅外線光點
03:23
what these two dots are essentially going to give you
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它就能告訴電腦
03:25
is, give the computer an approximation of your head location.
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你的頭部位置。
03:28
And why this is interesting
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更有趣的是，
03:29
is I have this sort of application running on the computer monitor,
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這個電腦螢幕正執行著一個程式，
03:32
which has a 3D room, with some targets floating in it.
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顯示一些標靶漂浮在 3D 房間裡。
03:35
And you can see that it looks like a 3D room -- if
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就像很多遊戲裡看到的一樣，
03:38
you can see -- kind of like a video game, it sort of looks 3D,
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它看起來像是 3D，
03:41
but for the most part, the image looks pretty flat,
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不過這些影像不但看起來很平，
03:43
and bound to the surface of the screen.
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也釘在畫面上不能動。
03:45
But if we turn on head tracking,
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現在如果我們把頭部追蹤打開，
03:50
the computer can change the image that's on the screen
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電腦就能改變螢幕上的影像，
03:52
and make it respond to the head movements.
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讓它們與你的頭部互動。
03:55
So let's switch back to that.
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我們回頭看看。
03:57
(Laughter)
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（笑聲）
04:01
(Applause)
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（掌聲）
04:11
So this has actually been a little bit startling
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這著實令遊戲開發業者
04:14
to the game development community.
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吃驚。
04:15
(Laughter)
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（笑聲）
04:17
Because this is about 10 dollars of additional hardware
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因為只要你擁有任天堂 Wii，
04:20
if you already have a Nintendo Wii.
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再加上 10 美元的額外硬體費用就行了。
04:22
So I'm looking forward to seeing some games,
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我希望遊戲採用它
04:24
and actually Louis Castle, that's him down there,
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上週 Lou Castle（EA 副總裁），也就是台下坐的這位，
04:27
last week announced that Electronic Arts,
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宣佈 EA（美商藝電），
04:28
one of the largest game publishers, is releasing a game in May
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最大的遊戲發行商之一，將在 5 月發表一款遊戲
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that has a little Easter egg feature
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附有支援頭部
04:33
for supporting this type of head tracking.
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追蹤的隱藏功能。
04:36
So -- and that's from less than five months
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在不到 5 個月的時間內，
04:38
from a prototype in my lab to a major commercial product.
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將我的實驗原型變成為商業產品
04:41
(Applause)
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（掌聲）
04:47
Thank you.
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謝謝。
04:50
But actually, to me, what's almost more interesting
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事實上，對我而言最有意思的，
04:52
than either of these two products
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不是這兩個實驗本身，
04:54
is how people actually found out about them.
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而是人們是如何發現這兩個實驗的。
04:56
YouTube has really changed the way, or changed the speed,
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Youtube 改變了
05:00
in which a single individual
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將個人想法
05:01
can actually spread an idea around the world.
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散播到全世界的速度或方式。
05:03
You know, I'm doing some research in my lab with a video camera,
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我不過是使用攝影機，將我在實驗室內的研究錄下，
05:06
and within the first week, a million people had seen this work,
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在一週之內，就有一百萬人看到，
05:10
and literally within days, engineers, teachers and students
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在短短幾天內，就有世界各地的工程師、老師、學生們，
05:13
from around the world, were already posting their own YouTube videos
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使用我的系統或加以變化，
05:17
of them using my system or derivatives of this work.
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並在 Youtube 發佈他們的影片。
05:19
So I hope to see more of that in the future,
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我希望未來能看到更多，
05:22
and hope online video distribution
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也希望線上遊戲的發行，
05:24
to be embraced by the research community.
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可以和研究社群結合。
05:26
So thank you very much.
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謝謝大家
05:27
(Applause)
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（掌聲）
ABOUT THE SPEAKER
Johnny Lee - Human-computer interaction researcherResearcher Johnny Lee became a YouTube star with his demo of Wii Remote hacks -- bending the low-cost game piece to power an interactive whiteboard, a multitouch surface, a head-mounted display ...
Why you should listen
To understand Johnny Lee, just take a look at his website. Aside from his Wii Remote hacks -- voted the #1 tech demo of all time by Digg -- you can see all the other places his mind has turned: typography, photography, urban renewal ... to say nothing of his interesting sideline in Little Great Ideas, like the hypnotic "___ will ___ you."
After earning his PhD from the Human-Computer Interaction Institute at Carnegie Mellon University, he joined the team at Microsoft responsible for Project Natal, a controller-free motion sensing device for the Xbox 360. He's since turned his attention to accelerated technology R&D at Google.
Johnny Lee | Speaker | TED.com