Deepfakes for dance: Be careful what you see! THE artificial νοημοσύνη (Artificial intelligence ή απλά AI) αποδεικνύεται ότι είναι ένα πολύ ισχυρό tool για την δημιουργία fake βίντεο. Η τελευταία γνωστή τεχνητή νοημοσύνη ονομάζεται deepfakes for dancing και uses AI to read dance moves from someone and copy them to a target body.
The new AI was developed by four researchers at UC Berkley. As they describe in a paper they published in arXiV (PDF), their system consists of a series of separate steps.
First, a video is recorded of the dancer whose movements we want to copy. Motions are converted from an app to motions of a “body” with simple lines and a video is created.
Then the change takes place. A neural network composes a video with a new body that faithfully follows the movements of the "body" with the lines.
The system can be used to transport all kinds of dance from modern to ballet.
It may sound simple, but there are many intelligent mechanisms. For example, there are techniques of smoothing movements so that dancers do not move mechanically. A separate neural network is also dedicated to locating the target's face to ensure greater realism.
There are also some limitations. AI can not accurately model dancers with clothes that do not fit into the body. In the video above, you can also see some visual anomalies. There the software could not just reproduce some complex moves, like a hand that pushes from behind to the front.
Nevertheless, the result is impressive. In the future we will probably see perfected ones applications that use that particular AI. But think about the possible consequences of the release of such applications... how much confidence we will be able to have in what we see.
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