Tuesday, June 18, 2019

Watch Samsung’s new AI turn Mona Lisa into a realistic talking head

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Soon, it might be trivially easy to create a fake video of someone -- anyone -- talking.
Soon, it might be trivially easy to create a fake video of someone — anyone — talking.

Image: Samsung AI Center, Moscow

Need more convincing that it will soon be impossible to tell whether a video of a person is real or fake? Enter Samsung’s new research, in which a neural network can turn a still image into a disturbingly convincing video. 

Researchers at the Samsung AI center in Moscow have achieved this, Motherboard reported Thursday, by training a “deep convolutional network” on a large number of videos showing talking heads, allowing it to identify certain facial features, and then using that knowledge to animate an image. 

The results, presented in a paper called “Few-Shot Adversarial Learning of Realistic Neural Talking Head Models,” are not as good as some of the deepfake videos you’ve seen, but to create those, you need a large number of images of the person you’re trying to animate. The advantage of Samsung’s approach is that you can turn a single still image (though the fidelity of the resulting video increases with more images) into a video. 

You can see some of the results of this research in the video, below. Using a single still image of Fyodor Dostoevsky, Salvador Dali, Albert Einstein, Marilyn Monroe and even Mona Lisa, the AI was able to create videos of them talking which are realistic enough — at moments — to appear to be actual footage. 

None of these videos will fool an expert, or anyone looking close enough. But as we’ve seen in previous research on AI-based generated imagery, the results tend to vastly improve in a matter of years. 

The implications of this research are chilling. Armed with this tool, one only needs a single photo of a person (which are today easily obtainable for most people) to create a video of them talking. Add to that a tool that can use short snippets of sample audio material to create convincing, fake voice of a person, and one can get anyone to “say” anything. And with tools like Nvidia’s GAN, one could even create a realistic-looking, fake setting for such a video. As these tools become more powerful and easier to obtain, it will become tougher to tell real videos from fake ones; hopefully, the tools to discern between the two will get more advanced as well. 

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Source: Mashable

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