TED2008
Johnny Lee: Free or cheap Wii Remote hacks
Johnny Lee演示Wii遥控器的
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Johnny Lee展示他利用Wii遥控器制作的高科技教学用具。制作电子白板，触摸屏和3D观看器,只需要一个40美元的游戏遥控器。
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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做为一个研究人员，我们经常用极大的资源
00:24
to achieve certain capabilities, or achieve certain goals.
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来实现一些特定功能、或目标。
00:27
And this is essential to the progress of science,
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这对科学进步和可行性探索是必要的。
00:29
or exploration of what is possible.
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这对科学进步和可行性探索是必要的。
00:31
But it sort of creates this unfortunate situation
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但是，这种方式造成了一个不幸的情形，
00:34
where a tiny, tiny fraction of the world
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就是只有世界很小很小的一部分人，
00:36
can actually participate in this exploration
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可以参与这个探索,
00:38
or can benefit from that technology.
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或从科技中获益。
00:40
And something that motivates me,
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一个激发我，
00:41
and what gets me really excited about my research,
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让我对自己的研究充满了热情的原因，
00:43
is when I see simple opportunities
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是当我看到了很简单的机会
00:45
to drastically change that distribution
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可以显著改善这种分布不均的局面，
00:47
and make the technology accessible
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让更多人接近科技。
00:49
to a much wider percentage of the population.
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让更多人接近科技。
00:51
And I'm going to show you two videos
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我准备播放两段视频，
00:53
that have gotten a lot of attention recently
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最近很多人关注它们，
00:54
that I think embody this philosophy.
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而且它们也体现了我之前的观点。
00:56
And they actually use the Nintendo Wii remote.
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它们其实用的是任天堂游戏机Wii的遥控器，
00:59
Now, for those of you who aren't familiar with this device,
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如果你不熟悉这个小玩意的话，
01:01
it's a $40 video game controller.
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它是一个40美元的游戏机控制器。
01:04
And it's mostly advertised for its motion sensor capabilities:
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它最出名的地方就是它的运动传感器。
01:07
so you can swing a tennis racket, or hit a baseball bat.
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你可以像这样挥一个网球拍，或者是棒球棍。
01:10
But what actually interests me a lot more
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但其实更让我感兴趣的，
01:12
is the fact that in the tip of each controller
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是这个遥控器顶部的
01:14
is a relatively high-performing infrared camera.
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一个比较高性能的红外照相机。
01:17
And I'm going to show you two demos of why this is useful.
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我这就做两个演示来告诉你为什么它很有用。
01:21
So here, I have my computer set up with the projector,
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这是我的电脑，连着投影仪，
01:25
and I have a Wii remote sitting on top of it.
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我把一个Wii遥控器放在上面。
01:27
And, for example, if you're in a school
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比如说，一所学校，
01:30
that doesn't have a lot money, which is probably a lot of schools,
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没有很多钱，大概大部分的学校都是这样，
01:32
or if you're in an office environment,
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或者是办公室，
01:34
and you want an interactive whiteboard,
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如果你想有一个交互式电子白板，
01:36
normally these cost about two to three thousand dollars.
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一般要花上2000到3000美元。
01:39
So what I'm going to show you how to do
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而现在我就要演示，
01:41
is how to create one with a Wii remote.
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怎么用一个Wii的遥控器来做一个电子白板。
01:43
Now, this requires another piece of hardware,
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这还需要另外一个硬件，
01:46
which is this infrared pen.
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一个发射红外线的笔。
01:48
You can probably make this yourself for about five dollars
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你自己做一个只需要5块钱,
01:51
with a quick trip to the Radio Shack.
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元件可以在Radio Shack（美国电器公司）买到。
01:52
It's essentially got a battery, a button and an infrared LED,
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它是由一节电池，一个开关和一个红外发光二极管组成的。
01:55
and it turns on -- you guys can't see it --
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按开关可以让它发射红外线，当然肉眼是看不见的，
01:57
but it turns on whenever I push the button.
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但是我一按开关它就会发射。
01:59
Now, what this means is that if I run this piece of software,
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这就意味，如果我运行这个软件，
02:03
the camera sees the infrared dot,
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红外照相机就可以看见这个红外线的点，
02:07
and I can register the location of the camera pixels
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软件把红外摄像机的像素位置对应到投影仪的像素位置。
02:12
to the projector pixels. And now this is like a whiteboard surface.
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现在它就变成了一个电子白板。
02:15
(Applause)
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（掌声）
02:18
So for about $50 of hardware, you can have your own whiteboard.
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所以只用50美元的硬件，你就可以做自己的电子白板了。
02:21
This is Adobe Photoshop.
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这是 Adobe Photoshop（著名图形软件）。
02:24
(Applause)
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（掌声）
02:30
Thank you.
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谢谢。
02:31
(Laughter)
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（笑声）
02:32
Now, the software for this I've actually put on my website
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我把这个软件放在了我的网站上，
02:35
and have let people download it for free.
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大家都可以免费下载。
02:37
And in the three months that this project has been public,
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在这个设计面世3个月里，
02:39
it's been downloaded over half a million times.
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已经有50万人下载了。
02:41
So teachers and students all around the world
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全世界的老师和学生们
02:44
are already using this.
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都已经用到了它。
02:45
(Applause)
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（掌声）
02:51
I want to quickly say that although it does do it for 50 dollars,
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我想说明一下，虽然50美元的硬件能满足大部分要求，
02:53
there are some limitations of this approach.
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这个方案还是有它的局限和不足。
02:55
But you get about 80 percent of the way there,
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但是你实现80%的功能，
02:57
for about one percent of the cost.
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只用了1%的花销。
02:58
Another nice thing is that a camera can see multiple dots,
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另外一个优点就是红外摄像机可以探测到多个点。
03:01
so this is actually
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所以，
03:02
a multi-touch, interactive whiteboard system as well.
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这其实是一个多点触控的电子白板。
03:04
(Applause)
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（掌声）
03:07
For the second demo, I have this Wii remote
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第二个演示，我把这个Wii遥控器
03:09
that's actually next to the TV.
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放在电视旁边。
03:11
So it's pointing away from the display,
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对着屏幕的反方向，
03:12
rather than pointing at the display.
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而不是面对着屏幕。
03:15
And why this is interesting
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它有趣的地方是
03:17
is that if you put on, say, a pair of safety glasses,
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如果你带上一副保险眼镜，
03:21
that have two infrared dots in them,
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眼镜上有两个红外发光点，
03:23
what these two dots are essentially going to give you
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这两个红外发光点
03:25
is, give the computer an approximation of your head location.
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可以让电脑知道你头部的大概位置。
03:28
And why this is interesting
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它有趣的地方
03:29
is I have this sort of application running on the computer monitor,
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是在于这个电脑上运行的软件，
03:32
which has a 3D room, with some targets floating in it.
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一个三维的空间，有一些靶子在里面。
03:35
And you can see that it looks like a 3D room -- if
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你可以把它看成三维房间，
03:38
you can see -- kind of like a video game, it sort of looks 3D,
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就像在游戏里的三维一样。
03:41
but for the most part, the image looks pretty flat,
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但是，这个画面看起来还是平面的，
03:43
and bound to the surface of the screen.
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它被屏幕的表面所局限。
03:45
But if we turn on head tracking,
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但是如果我们打开头部跟踪，
03:50
the computer can change the image that's on the screen
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电脑就可以改变屏幕上的画面
03:52
and make it respond to the head movements.
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让它随着头部运动而改变。
03:55
So let's switch back to that.
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换回原来的那个。
03:57
(Laughter)
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（笑声）
04:01
(Applause)
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（掌声）
04:11
So this has actually been a little bit startling
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这个发明小小震动了一些人，
04:14
to the game development community.
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尤其是游戏开发的圈子。
04:15
(Laughter)
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(笑声）
04:17
Because this is about 10 dollars of additional hardware
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因为这只需要额外10美金左右的硬件，
04:20
if you already have a Nintendo Wii.
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如果你已经有了任天堂Wii游戏机的话。
04:22
So I'm looking forward to seeing some games,
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我很期待一些游戏的推出，
04:24
and actually Louis Castle, that's him down there,
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其实Louis Castle，他就在下面，
04:27
last week announced that Electronic Arts,
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上星期宣告了Electronic Arts，（美国著名游戏公司）
04:28
one of the largest game publishers, is releasing a game in May
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世界上最大的游戏发行商之一，在5月要推出一款游戏，
04:32
that has a little Easter egg feature
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里面有一个小惊喜的彩蛋功能
04:33
for supporting this type of head tracking.
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支持了这种头部的追踪。
04:36
So -- and that's from less than five months
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所以，不到5个月，
04:38
from a prototype in my lab to a major commercial product.
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从我实验室里的样品，成为一个商业成品。
04:41
(Applause)
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（掌声）
04:47
Thank you.
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谢谢。
04:50
But actually, to me, what's almost more interesting
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但是其实，对于我来说，更有趣的
04:52
than either of these two products
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比这两个产品更有趣的，
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is how people actually found out about them.
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是人们怎么发现了他们。
04:56
YouTube has really changed the way, or changed the speed,
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YouTube（美国视频网站） 改变了
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in which a single individual
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一个个体
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can actually spread an idea around the world.
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可以向这个世界传播想法的方式和速度。
05:03
You know, I'm doing some research in my lab with a video camera,
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你知道，我不过是用摄像头记录了自己实验室里的一些研究，
05:06
and within the first week, a million people had seen this work,
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一个星期之内，有百万人看到了我的工作，
05:10
and literally within days, engineers, teachers and students
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在几天之内，来自各个地方的工程师，老师，学生
05:13
from around the world, were already posting their own YouTube videos
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都在YouTube上传了视频
05:17
of them using my system or derivatives of this work.
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演示他们使用我的系统，或者是这个系统的延伸。
05:19
So I hope to see more of that in the future,
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我希望将来能看到更多这样的视频。
05:22
and hope online video distribution
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同时也希望网上视频的发散
05:24
to be embraced by the research community.
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可以被研究圈子采纳。
05:26
So thank you very much.
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非常感谢。
05:27
(Applause)
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（掌声）
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