Name: 【TED】Supasorn Suwajanakorn: Fake videos of real people -- and how to spot them (Fake videos of real people -- and how to spot them | Supasorn Suwajanakorn)
Uploaded: 2018-07-25T17:41:53.000Z
Duration: 7 min 16 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

(Video) Barack Obama: To help families refinance their homes,

to invest in things like high-tech manufacturing,

and the infrastructure that creates good new jobs.

was a project meant to preserve our last chance for learning about the Holocaust

and it allows you to have interactive conversations

with a hologram of a real Holocaust survivor.

(Video) Man: How did you survive the Holocaust?

SS: Turns out these answers were prerecorded in a studio.

You feel so connected to his story and to him as a person.

I think there's something special about human interaction

than what books or lectures or movies could ever teach us.

can we create a model like this for anyone?

A model that looks, talks and acts just like them?

So I set out to see if this could be done

and eventually came up with a new solution

that can build a model of a person using nothing but these:

If you can leverage this kind of passive information,

just photos and video that are out there,

who in addition to being a Nobel Prize winner in physics

Wouldn't it be great if we could bring him back

to give his lectures and inspire millions of kids,

perhaps not just in English but in any language?

Or if you could ask our grandparents for advice and hear those comforting words

Or maybe using this tool, book authors, alive or not,

could read aloud all of their books for anyone interested.

The creative possibilities here are endless,

that can reconstruct a high-detailed 3D face model from any image

And here's the same output model from different views.

by running the same algorithm on each video frame

And here's the same output model from different angles.

It turns out this problem is very challenging,

but the key trick is that we are going to analyze

a large photo collection of the person beforehand.

For George W. Bush, we can just search on Google,

and from that, we are able to build an average model,

an iterative, refined model to recover the expression

in fine details, like creases and wrinkles.

is that the photo collection can come from your typical photos.

It doesn't really matter what expression you're making

What matters is that there are a lot of them.

so next, we develop a new blending technique

that improves upon a single averaging method

and produces sharp facial textures and colors.

Now we have a control of a model of a person,

and the way it's controlled now is by a sequence of static photos.

Notice how the wrinkles come and go, depending on the expression.

We can also use a video to drive the model.

(Video) Daniel Craig: Right, but somehow,

we've managed to attract some more amazing people.

So what you see here are controllable models

of people I built from their internet photos.

Now, if you transfer the motion from the input video,

George W. Bush: It's a difficult bill to pass,

and the legislative processes can be ugly.

our ultimate goal, rather, is to capture their mannerisms

or the unique way each of these people talks and smiles.

So to do that, can we actually teach the computer

by only showing it video footage of the person?

And what I did exactly was, I let a computer watch

14 hours of pure Barack Obama giving addresses.

【TED】Supasorn Suwajanakorn: Fake videos of real people -- and how to spot them (Fake videos of real people -- and how to spot them | Supasorn Suwajanakorn)

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【TED】Supasorn Suwajanakorn: Fake videos of real people -- and how to spot them (Fake videos of real people -- and how to spot them | Supasorn Suwajanakorn)

individual

profound

expression

technique