Stephen Lawler: Look! Up in the sky! It's Virtual Earth!

19,189 views ・ 2007-06-21

TED


Please double-click on the English subtitles below to play the video.

00:25
What I want to talk to you about today is
0
25000
3000
00:28
virtual worlds, digital globes, the 3-D Web, the Metaverse.
1
28000
9000
00:37
What does this all mean for us?
2
37000
2000
00:39
What it means is the Web is going to become an exciting place again.
3
39000
5000
00:44
It's going to become super exciting as we transform
4
44000
3000
00:47
to this highly immersive and interactive world.
5
47000
4000
00:51
With graphics, computing power, low latencies,
6
51000
3000
00:54
these types of applications and possibilities
7
54000
3000
00:57
are going to stream rich data into your lives.
8
57000
5000
01:02
So the Virtual Earth initiative, and other types of these initiatives,
9
62000
5000
01:07
are all about extending our current search metaphor.
10
67000
6000
01:13
When you think about it, we're so constrained by browsing the Web,
11
73000
3000
01:16
remembering URLs, saving favorites.
12
76000
3000
01:19
As we move to search, we rely on the relevance rankings,
13
79000
3000
01:22
the Web matching, the index crawling.
14
82000
3000
01:25
But we want to use our brain!
15
85000
2000
01:27
We want to navigate, explore, discover information.
16
87000
3000
01:30
In order to do that, we have to put you as a user back in the driver's seat.
17
90000
5000
01:35
We need cooperation between you and the computing network and the computer.
18
95000
4000
01:39
So what better way to put you back in the driver's seat
19
99000
4000
01:43
than to put you in the real world that you interact in every day?
20
103000
3000
01:46
Why not leverage the learnings that you've been learning your entire life?
21
106000
4000
01:50
So Virtual Earth is about starting off
22
110000
3000
01:53
creating the first digital representation, comprehensive, of the entire world.
23
113000
5000
01:58
What we want to do is mix in all types of data.
24
118000
3000
02:01
Tag it. Attribute it. Metadata. Get the community to add local depth,
25
121000
5000
02:06
global perspective, local knowledge.
26
126000
3000
02:09
So when you think about this problem,
27
129000
2000
02:11
what an enormous undertaking. Where do you begin?
28
131000
4000
02:15
Well, we collect data from satellites, from airplanes,
29
135000
4000
02:19
from ground vehicles, from people.
30
139000
3000
02:22
This process is an engineering problem,
31
142000
5000
02:27
a mechanical problem, a logistical problem, an operational problem.
32
147000
4000
02:31
Here is an example of our aerial camera.
33
151000
2000
02:33
This is panchromatic. It's actually four color cones.
34
153000
3000
02:36
In addition, it's multi-spectral.
35
156000
2000
02:38
We collect four gigabits per second of data,
36
158000
4000
02:42
if you can imagine that kind of data stream coming down.
37
162000
2000
02:44
That's equivalent to a constellation of 12 satellites at highest res capacity.
38
164000
6000
02:50
We fly these airplanes at 5,000 feet in the air.
39
170000
4000
02:54
You can see the camera on the front. We collect multiple viewpoints,
40
174000
3000
02:57
vantage points, angles, textures. We bring all that data back in.
41
177000
6000
03:03
We sit here -- you know, think about the ground vehicles, the human scale --
42
183000
4000
03:07
what do you see in person? We need to capture that up close
43
187000
2000
03:09
to establish that what it's like-type experience.
44
189000
4000
03:13
I bet many of you have seen the Apple commercials,
45
193000
4000
03:17
kind of poking at the PC for their brilliance and simplicity.
46
197000
6000
03:23
So a little unknown secret is --
47
203000
2000
03:25
did you see the one with the guy, he's got the Web cam?
48
205000
4000
03:29
The poor PC guy. They're duct taping his head. They're just wrapping it on him.
49
209000
4000
03:33
Well, a little unknown secret is his brother actually works on the Virtual Earth team.
50
213000
4000
03:37
(Laughter). So they've got a little bit of a sibling rivalry thing going on here.
51
217000
5000
03:42
But let me tell you -- it doesn't affect his day job.
52
222000
2000
03:44
We think a lot of good can come from this technology.
53
224000
3000
03:47
This was after Katrina. We were the first commercial fleet of airplanes
54
227000
4000
03:51
to be cleared into the disaster impact zone.
55
231000
3000
03:54
We flew the area. We imaged it. We sent in people. We took pictures of interiors,
56
234000
5000
03:59
disaster areas. We helped with the first responders, the search and rescue.
57
239000
4000
04:03
Often the first time anyone saw what happened to their house was on Virtual Earth.
58
243000
5000
04:08
We made it all freely available on the Web, just to --
59
248000
2000
04:10
it was obviously our chance of helping out with the cause.
60
250000
4000
04:14
When we think about how all this comes together,
61
254000
3000
04:17
it's all about software, algorithms and math.
62
257000
4000
04:21
You know, we capture this imagery but to build the 3-D models
63
261000
3000
04:24
we need to do geo-positioning. We need to do geo-registering of the images.
64
264000
5000
04:29
We have to bundle adjust them. Find tie points.
65
269000
2000
04:31
Extract geometry from the images.
66
271000
3000
04:34
This process is a very calculated process.
67
274000
4000
04:38
In fact, it was always done manual.
68
278000
1000
04:39
Hollywood would spend millions of dollars to do a small urban corridor
69
279000
4000
04:43
for a movie because they'd have to do it manually.
70
283000
3000
04:46
They'd drive the streets with lasers called LIDAR.
71
286000
2000
04:48
They'd collected information with photos. They'd manually build each building.
72
288000
4000
04:52
We do this all through software, algorithms and math --
73
292000
2000
04:54
a highly automated pipeline creating these cities.
74
294000
3000
04:57
We took a decimal point off what it cost to build these cities,
75
297000
3000
05:00
and that's how we're going to be able to scale this out and make this reality a dream.
76
300000
4000
05:04
We think about the user interface.
77
304000
2000
05:06
What does it mean to look at it from multiple perspectives?
78
306000
3000
05:09
An ortho-view, a nadir-view. How do you keep the precision of the fidelity of the imagery
79
309000
5000
05:14
while maintaining the fluidity of the model?
80
314000
4000
05:18
I'll wrap up by showing you the --
81
318000
2000
05:20
this is a brand-new peek I haven't really shown into the lab area of Virtual Earth.
82
320000
4000
05:24
What we're doing is -- people like this a lot,
83
324000
3000
05:27
this bird's eye imagery we work with. It's this high resolution data.
84
327000
3000
05:30
But what we've found is they like the fluidity of the 3-D model.
85
330000
4000
05:34
A child can navigate with an Xbox controller or a game controller.
86
334000
4000
05:38
So here what we're trying to do is we bring the picture and project it into the 3-D model space.
87
338000
5000
05:43
You can see all types of resolution. From here, I can slowly pan the image over.
88
343000
6000
05:49
I can get the next image. I can blend and transition.
89
349000
3000
05:52
By doing this I don't lose the original detail. In fact, I might be recording history.
90
352000
5000
05:57
The freshness, the capacity. I can turn this image.
91
357000
3000
06:00
I can look at it from multiple viewpoints and angles.
92
360000
3000
06:03
What we're trying to do is build a virtual world.
93
363000
3000
06:06
We hope that we can make computing a user model you're familiar with,
94
366000
5000
06:11
and really derive insights from you, from all different directions.
95
371000
4000
06:15
I thank you very much for your time.
96
375000
2000
06:17
(Applause)
97
377000
1000
About this website

This site will introduce you to YouTube videos that are useful for learning English. You will see English lessons taught by top-notch teachers from around the world. Double-click on the English subtitles displayed on each video page to play the video from there. The subtitles scroll in sync with the video playback. If you have any comments or requests, please contact us using this contact form.

https://forms.gle/WvT1wiN1qDtmnspy7