doctor inside your body.

醫生進入你的身體

Since we decided to spice up the cave walls back at Lascaux, we have been obsessed with

自從我們決定開始替拉斯科洞窟的牆上增添點樂趣，我們就著迷於

creating ever more lifelike and realistic images, and that includes 3D. Whether it's

創造更逼真的影像，而那包括3D。不論這是否是

a Hollywood gimmick, or the next generation computer display, our visualization technology

好萊塢的花招，或是下個世代的電腦顯像，我們的視覺科技

has reshaped the way humans and machines interact. Tech companies like Apple are buying up patents

重塑了人類和機器之間的互動。科技公司像是蘋果，正在收購各項專利

to create glasses-free 3D displays. So you can bet that 3D is still in our future. But

來創造裸視3D顯像。因此你可以想見3D技術會持續存在於未來。但是

is it going to be like the movies? Are we going to have free standing, floating holograms,

這項技術會像電影裡的一樣嗎？我們會有像是星際大戰裡的懸空、全視角的漂浮影像嗎？

360 degrees around, like in Star Wars. R2D2 coming up and shooting out that image of Princess

R2D2正在接近並涉及了Leia公主的影像

Leia from whatever and...

從..不管哪裡，接著

*Help me Jonathan! You're My Only Hope!*

「救我，Jonathan!你是我唯一的希望！」

Ok that's creepy!

好了，這太詭異了！

Nobody told me we were doing that. Can that go away now?

沒有人跟我說我們在做這個。那個影像可以結束嗎？

Thanks.

謝謝

We don't have the technology to make those kinds of holograms, and maybe we never will.

我們並沒有足夠的科技做到這種全像攝影，也許以後也不會有

A lot of that's due to the bad information we've had about holography. For example, do

很大的原因來自於我們對於全像影像的錯誤訊息。舉例來講，

you remember when Tupac Shakur blew everyone's minds by showing up at Coachella 2012 in hologram

你還記得當Tupac Shakur的全像影像出現在2012年科切拉音樂節時大家都為之震撼嗎？

form? Yeah, see that wasn't a hologram. That was actually this really cool angled mirror

注意，那並不是全像影像。那個事實上是很酷的扭曲鏡面

illusion called Pepper's Ghost, which we've been using for more than a century to simulate

影像稱作佩珀爾幻象，我們用它來模擬鬼魅超過了一個世紀。

hauntings. So what exactly is a hologram anyway? When you take a picture with a normal camera,

所以，到底什麼是全像攝影？當你用一個普通的相機照相時

you're really just recording a single splash of light across a two dimensional surface,

你其實只是在紀錄一個像電影一樣的由單一光面穿過二度空間所形成的表象

like film. But a holographic camera, well that uses a laser beam splitter to split into

但是一個全像攝影的相機，會使用激光分束器分離成

two beams of light. You've got one that's just a clean reference signal, and another

兩道光束。你會得到一個清晰的相關信號，另外

one that you've run over a three dimensional object. So you can measure all those nooks

還可以瀏覽三度空間的物件。因此你可以估算所有的死角

and crannies and create a light map of that object. So could we ever get to that free

和縫隙並創造一個物件的光影圖像。所以，我們有可能會有懸浮的

standing hologram? Well one way we might try is by using a lot of different projectors

全像影像嗎？這個嘛，我們可能會嘗試用許多不同的投射器

to project light into a cloud of fog. Now the fog would actually act as a three dimensional

將光線投射進一團霧氣。現在霧氣可以當作是一個三度空間的

movie screen, and particles within the fog would actually reflect the light back to us.

電影螢幕，霧氣中的小粒子可以將光線反射回來

Maybe we're even going to come up with technologies we can't even dream of right now to make holograms

也許我們甚至正在追趕上現在所不能想像的全像技術。

possible. But here's a paradox for you - when did 3D become a gimmick? I mean, our world

但有個矛盾的觀點要告訴你-為什麼3D變成了一種耍噱頭的花招？我是指，我們的是

is in three dimensions. It's 2D that's the gimmick. We build machines in 3D, we play

是存在在三度空間的，2D才是一種花招。我們製作立體的機械、和

with our pets in 3D. I think the ultimate human-computer interface is one where we just

真實存在的寵物玩耍。我認為最終人機互動介面是是一個我們可以

strip away all of that division so that our non-computerized reality and our computer

揭開所有被掩蓋部分的方法，如此一來我們未電腦化的現實世界和電腦

experience are merged as one. I mean imagine that you are a tele-surgeon. You've got a

使用經驗可以合而為一。我的意思是想像你是遠程外科醫生。你有一個

hologram of the patient in front of you. The actual patient is 100 miles away. You want

病人的全像影像在面前，但事實上病人在100哩外。你想要可以

that to be as accurate and seamless as if you were actually in the room with a blade

像實際上在那個房間操作手術刀一樣地準確和沒有傷痕

in your hand. Or imagine how much easier your world would be if we could actually build

或者想像那會有多方便如果我們真的完成了

the holographic interfaces you've seen in movies like Iron Man, where you move the data

電影鋼鐵人裡的全像影像介面，你可以移動周圍的數據

around. It comes to you - you're no longer playing in this two dimensional space, it's

那個時代正在來臨，你不再使用這個二度的空間，這是

playing in YOUR world. Holography might even restore sight to the blind! You might be able

在你自己的世界。全像影像甚至可能恢復盲人的視力！你也許可以

to use a combination of gene therapy and special glasses that actually beam holograms back

結合基因治療和能將全像影像發射訊號回

to your eyes to restore your vision. And of course holograms will play a big part in one

你雙眼的特殊眼鏡來恢復視力。當然全像影像將會在我最喜歡的

of my favorite subjects of all time: space travel. We can already simulate the elements

主題-太空旅行中扮演重要的角色。在芝加哥的伊利諾州大學裡，已經可以模仿太空旅行

of space travel using something like the Cave 2, which is at the University of Illinois

中所用到的元素像是 Cave 2

in Chicago. They've even taken footage from the Mars landings and they can give you a

他們甚至可以運用在火星降落的連續鏡頭，完成一個

full three dimensional simulation of walking around on Mars. And in the far future, Mars

完全3D模擬的火星環境。在未來，火星上的

colonists might get a little homesick, so then they just go ahead and jump into Cave

殖民者可能會有一點思鄉病，那他們只需要往前跳進Cave

3, and visit sweet home Chicago.

3就可以造訪甜蜜的家鄉-芝加哥