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

19,210 views ・ 2007-06-21

TED


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What I want to talk to you about today is
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virtual worlds, digital globes, the 3-D Web, the Metaverse.
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What does this all mean for us?
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What it means is the Web is going to become an exciting place again.
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It's going to become super exciting as we transform
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to this highly immersive and interactive world.
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With graphics, computing power, low latencies,
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these types of applications and possibilities
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are going to stream rich data into your lives.
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So the Virtual Earth initiative, and other types of these initiatives,
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are all about extending our current search metaphor.
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When you think about it, we're so constrained by browsing the Web,
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remembering URLs, saving favorites.
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As we move to search, we rely on the relevance rankings,
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the Web matching, the index crawling.
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But we want to use our brain!
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We want to navigate, explore, discover information.
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In order to do that, we have to put you as a user back in the driver's seat.
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We need cooperation between you and the computing network and the computer.
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So what better way to put you back in the driver's seat
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than to put you in the real world that you interact in every day?
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Why not leverage the learnings that you've been learning your entire life?
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So Virtual Earth is about starting off
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creating the first digital representation, comprehensive, of the entire world.
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What we want to do is mix in all types of data.
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Tag it. Attribute it. Metadata. Get the community to add local depth,
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global perspective, local knowledge.
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So when you think about this problem,
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what an enormous undertaking. Where do you begin?
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Well, we collect data from satellites, from airplanes,
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from ground vehicles, from people.
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This process is an engineering problem,
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a mechanical problem, a logistical problem, an operational problem.
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Here is an example of our aerial camera.
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This is panchromatic. It's actually four color cones.
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In addition, it's multi-spectral.
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We collect four gigabits per second of data,
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if you can imagine that kind of data stream coming down.
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That's equivalent to a constellation of 12 satellites at highest res capacity.
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We fly these airplanes at 5,000 feet in the air.
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You can see the camera on the front. We collect multiple viewpoints,
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vantage points, angles, textures. We bring all that data back in.
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We sit here -- you know, think about the ground vehicles, the human scale --
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what do you see in person? We need to capture that up close
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to establish that what it's like-type experience.
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I bet many of you have seen the Apple commercials,
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kind of poking at the PC for their brilliance and simplicity.
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So a little unknown secret is --
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did you see the one with the guy, he's got the Web cam?
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The poor PC guy. They're duct taping his head. They're just wrapping it on him.
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Well, a little unknown secret is his brother actually works on the Virtual Earth team.
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(Laughter). So they've got a little bit of a sibling rivalry thing going on here.
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But let me tell you -- it doesn't affect his day job.
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We think a lot of good can come from this technology.
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This was after Katrina. We were the first commercial fleet of airplanes
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to be cleared into the disaster impact zone.
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We flew the area. We imaged it. We sent in people. We took pictures of interiors,
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disaster areas. We helped with the first responders, the search and rescue.
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Often the first time anyone saw what happened to their house was on Virtual Earth.
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We made it all freely available on the Web, just to --
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it was obviously our chance of helping out with the cause.
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When we think about how all this comes together,
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it's all about software, algorithms and math.
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You know, we capture this imagery but to build the 3-D models
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we need to do geo-positioning. We need to do geo-registering of the images.
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We have to bundle adjust them. Find tie points.
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Extract geometry from the images.
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This process is a very calculated process.
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In fact, it was always done manual.
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Hollywood would spend millions of dollars to do a small urban corridor
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for a movie because they'd have to do it manually.
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They'd drive the streets with lasers called LIDAR.
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They'd collected information with photos. They'd manually build each building.
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We do this all through software, algorithms and math --
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a highly automated pipeline creating these cities.
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We took a decimal point off what it cost to build these cities,
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and that's how we're going to be able to scale this out and make this reality a dream.
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We think about the user interface.
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What does it mean to look at it from multiple perspectives?
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An ortho-view, a nadir-view. How do you keep the precision of the fidelity of the imagery
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while maintaining the fluidity of the model?
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I'll wrap up by showing you the --
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this is a brand-new peek I haven't really shown into the lab area of Virtual Earth.
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What we're doing is -- people like this a lot,
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this bird's eye imagery we work with. It's this high resolution data.
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But what we've found is they like the fluidity of the 3-D model.
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A child can navigate with an Xbox controller or a game controller.
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So here what we're trying to do is we bring the picture and project it into the 3-D model space.
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You can see all types of resolution. From here, I can slowly pan the image over.
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I can get the next image. I can blend and transition.
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By doing this I don't lose the original detail. In fact, I might be recording history.
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The freshness, the capacity. I can turn this image.
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I can look at it from multiple viewpoints and angles.
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What we're trying to do is build a virtual world.
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We hope that we can make computing a user model you're familiar with,
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and really derive insights from you, from all different directions.
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I thank you very much for your time.
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(Applause)
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