Wii remote hacks | Johnny Lee

翻译人员: Evelyn Zhang 校对人员: dahong zhang

做为一个研究人员，我们经常用极大的资源

So, as researchers, something that we often do is use immense resources

to achieve certain capabilities, or achieve certain goals.

来实现一些特定功能、或目标。

这对科学进步和可行性探索是必要的。

And this is essential to the progress of science,

这对科学进步和可行性探索是必要的。

or exploration of what is possible.

但是，这种方式造成了一个不幸的情形，

But it creates this unfortunate situation

就是只有世界很小很小的一部分人，

where a tiny, tiny fraction of the world

可以参与这个探索,

can actually participate in this exploration

或从科技中获益。

or can benefit from that technology.

一个激发我，

Something that motivates me,

让我对自己的研究充满了热情的原因，

and gets me really excited about my research,

是当我看到了很简单的机会

is when I see simple opportunities

可以显著改善这种分布不均的局面，

to drastically change that distribution and make the technology accessible

让更多人接近科技。

让更多人接近科技。

to a much wider percentage of the population.

我准备播放两段视频，

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

最近很多人关注它们，

而且它们也体现了我之前的观点。

that I think embody this philosophy.

它们其实用的是任天堂游戏机Wii的遥控器，

And they actually use the Nintendo Wii Remote.

如果你不熟悉这个小玩意的话，

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

它是一个40美元的游戏机控制器。

it's a $40 video game controller.

它最出名的地方就是它的运动传感器。

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

你可以像这样挥一个网球拍，或者是棒球棍。

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

但其实更让我感兴趣的，

But what actually interests me a lot more

是这个遥控器顶部的

is the fact that in the tip of each controller

一个比较高性能的红外照相机。

is a relatively high-performing infrared camera.

我这就做两个演示来告诉你为什么它很有用。

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

这是我的电脑，连着投影仪，

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

我把一个Wii遥控器放在上面。

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

比如说，一所学校，

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

没有很多钱，大概大部分的学校都是这样，

probably a lot of schools,

或者是办公室，

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

如果你想有一个交互式电子白板，

一般要花上2000到3000美元。

normally these cost about two to three thousand dollars.

而现在我就要演示，

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

怎么用一个Wii的遥控器来做一个电子白板。

这还需要另外一个硬件，

Now, this requires another piece of hardware,

一个发射红外线的笔。

which is this infrared pen.

你自己做一个只需要5块钱,

You can probably make this yourself for about five dollars

元件可以在Radio Shack（美国电器公司）买到。

with a quick trip to the Radio Shack.

它是由一节电池，一个开关和一个红外发光二极管组成的。

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

按开关可以让它发射红外线，当然肉眼是看不见的，

you guys can't see it --

但是我一按开关它就会发射。

but it turns on whenever I push the button.

这就意味，如果我运行这个软件，

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

红外照相机就可以看见这个红外线的点，

the camera sees the infrared dot,

软件把红外摄像机的像素位置对应到投影仪的像素位置。

and I can register the location of the camera pixels

现在它就变成了一个电子白板。

to the projector pixels.

And now this is like an interactive whiteboard surface.

（掌声）

(Applause)

所以只用50美元的硬件，你就可以做自己的电子白板了。

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

这是 Adobe Photoshop（著名图形软件）。

This is Adobe Photoshop.

（掌声）

(Applause)

Thank you.

谢谢。

（笑声）

(Laughter)

我把这个软件放在了我的网站上，

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

大家都可以免费下载。

and have let people download it for free.

在这个设计面世3个月里，

In the three months this project has been public,

已经有50万人下载了。

it's been downloaded over half a million times.

全世界的老师和学生们

So teachers and students all around the world

都已经用到了它。

are already using this.

（掌声）

(Applause)

我想说明一下，虽然50美元的硬件能满足大部分要求，

Although it does do it for 50 dollars,

这个方案还是有它的局限和不足。

there are some limitations of this approach.

但是你实现80%的功能，

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

只用了1%的花销。

另外一个优点就是红外摄像机可以探测到多个点。

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

所以，

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

这其实是一个多点触控的电子白板。

（掌声）

(Applause)

第二个演示，我把这个Wii遥控器

For the second demo,

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

放在电视旁边。

对着屏幕的反方向，

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

而不是面对着屏幕。

它有趣的地方是

And why this is interesting

如果你带上一副保险眼镜，

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

眼镜上有两个红外发光点，

that have two infrared dots in them,

这两个红外发光点

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

可以让电脑知道你头部的大概位置。

它有趣的地方

And why this is interesting

是在于这个电脑上运行的软件，

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

一个三维的空间，有一些靶子在里面。

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

你可以把它看成三维房间，

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

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

就像在游戏里的三维一样。

但是，这个画面看起来还是平面的，

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

它被屏幕的表面所局限。

and bound to the surface of the screen.

但是如果我们打开头部跟踪，

But if we turn on head tracking --

电脑就可以改变屏幕上的画面

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

让它随着头部运动而改变。

and make it respond to the head movements.

换回原来的那个。

So let's switch back to that.

（笑声）

(Laughter)

(Applause)

（掌声）

So this has actually been a little bit startling

这个发明小小震动了一些人，

尤其是游戏开发的圈子。

to the game-development community.

(笑声）

(Laughter)

因为这只需要额外10美金左右的硬件，

Because this is about 10 dollars of additional hardware

如果你已经有了任天堂Wii游戏机的话。

if you already have a Nintendo Wii.

我很期待一些游戏的推出，

So I'm looking forward to seeing some games,

其实Louis Castle，他就在下面，

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

上星期宣告了Electronic Arts，（美国著名游戏公司）

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

世界上最大的游戏发行商之一，在5月要推出一款游戏，

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

里面有一个小惊喜的彩蛋功能

支持了这种头部的追踪。

for supporting this type of head tracking.

所以，不到5个月，

And that's from less than five months

从我实验室里的样品，成为一个商业成品。

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

（掌声）

(Applause)

Thank you.

谢谢。

(Applause)

但是其实，对于我来说，更有趣的

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

比这两个产品更有趣的，

than either of these two projects

是人们怎么发现了他们。

is how people actually found out about them.

YouTube（美国视频网站） 改变了

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

一个个体

in which a single individual

可以向这个世界传播想法的方式和速度。

can actually spread an idea around the world.

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，

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

一个星期之内，有百万人看到了我的工作，

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

and literally within days, engineers, teachers and students

在几天之内，来自各个地方的工程师，老师，学生

都在YouTube上传了视频

from around the world were already posting their own YouTube videos

of them using my system or derivatives of this work.

演示他们使用我的系统，或者是这个系统的延伸。

我希望将来能看到更多这样的视频。

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

同时也希望网上视频的发散

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

可以被研究圈子采纳。

非常感谢。

So thank you very much.

（掌声）

(Applause)