Étiquette : deep fake (Page 1 of 2)

Comment reconnaître une image générée par le logiciel Midjourney ?


“La sophistication de plus en plus avancée de ces outils promet un monde dans lequel distinguer une véritable photo d’une création informatique sera quasi impossible, quand ce n’est pas déjà le cas. Alors que mettre en scène le pape François dans des situations décalées est devenu depuis ces derniers jours l’une des activités les plus à la mode sur le forum Reddit, quelques indices permettent encore, parfois, de ne pas se faire avoir.”

Source : Comment reconnaître une image générée par le logiciel Midjourney ?

Pause Giant AI Experiments: An Open Letter

“Contemporary AI systems are now becoming human-competitive at general tasks,[3] and we must ask ourselves: Should we let machines flood our information channels with propaganda and untruth? Should we automate away all the jobs, including the fulfilling ones? Should we develop nonhuman minds that might eventually outnumber, outsmart, obsolete and replace us? Should we risk loss of control of our civilization? Such decisions must not be delegated to unelected tech leaders. Powerful AI systems should be developed only once we are confident that their effects will be positive and their risks will be manageable. This confidence must be well justified and increase with the magnitude of a system’s potential effects. OpenAI’s recent statement regarding artificial general intelligence, states that « At some point, it may be important to get independent review before starting to train future systems, and for the most advanced efforts to agree to limit the rate of growth of compute used for creating new models. » We agree. That point is now.

Source : Pause Giant AI Experiments: An Open Letter – Future of Life Institute

L’intelligence artificielle pour modifier sa voix : « Pour un être humain, la différence va devenir impossible à détecter »


“Signe de la démocratisation de ces techniques : les voix « imitées » ne sont plus simplement celles de célébrités. Celles d’anonymes, récupérées depuis du contenu posté publiquement sur les réseaux sociaux, peuvent être utilisées pour mettre en œuvre un nouveau type d’arnaque, visant à extorquer de l’argent à partir d’une simple conversation téléphonique. Le Washington Post raconte ainsi le cas de parents ayant reçu un appel de quelqu’un se faisant passer pour leur enfant et les implorant de leur envoyer de l’argent.”

Source : L’intelligence artificielle pour modifier sa voix : « Pour un être humain, la différence va devenir impossible à détecter »

Intel Introduces Real-Time Deepfake Detector

real time deepfake detector

“As part of Intel’s Responsible AI work, the company has productized FakeCatcher, a technology that can detect fake videos with a 96% accuracy rate. Intel’s deepfake detection platform is the world’s first real-time deepfake detector that returns results in milliseconds.
Most deep learning-based detectors look at raw data to try to find signs of inauthenticity and identify what is wrong with a video. In contrast, FakeCatcher looks for authentic clues in real videos, by assessing what makes us human— subtle “blood flow” in the pixels of a video. When our hearts pump blood, our veins change color. These blood flow signals are collected from all over the face and algorithms translate these signals into spatiotemporal maps. Then, using deep learning, we can instantly detect whether a video is real or fake.  ”

Source : Intel Introduces Real-Time Deepfake Detector

Sur Internet, la prolifération de « deepfakes » pornographiques embarrasse professionnels et régulateurs

D’après une étude nééerlandaise, 96 % des deepfakes en circulation sur Internet sont des détournements pornographiques.

“DeepFaceLab est un outil de création de deepfakes. Ses concepteurs, qui ont publié en libre accès leur code sur la plate-forme GitHub, estiment que la quasi-totalité des vidéos deepfakes créées le sont aujourd’hui avec ce logiciel. Sur leur page, on y trouve de nombreux exemples : le visage du milliardaire Elon Musk intégré au film Interstellar, l’acteur Arnold Schwarzenegger rajeuni, le chef de l’Etat nord-coréen Kim Jong-un en plein laïus sur la préservation de la démocratie… Mais aussi, plus bas, un lien vers MrDeepFakes, un site pornographique.”

Source : Sur Internet, la prolifération de « deepfakes » pornographiques embarrasse professionnels et régulateurs

The latest marketing tactic on LinkedIn: AI-generated faces

LinkedIn Fake

“At first glance, Ramsey’s profile looks like many others on LinkedIn: the bland headshot with a slightly stiff smile; a boilerplate description of RingCentral, the software company where she says she works; and a brief job history. She claims to have an undergraduate business degree from New York University and gives a generic list of interests: CNN, Unilever, Amazon, philanthropist Melinda French Gates. But there were oddities in the photo: the single earring and strange hair, the placement of her eyes, the blurry background. Alone, any of these clues might be explained away, but together, they aroused DiResta’s suspicions […].

That chance message launched DiResta and her colleague Josh Goldstein at the Stanford Internet Observatory on an investigation that uncovered more than 1,000 LinkedIn profiles using what appear to be faces created by artificial intelligence.”

Source : The latest marketing tactic on LinkedIn: AI-generated faces : NPR

which face is real

“Which Face Is Real has been developed by Jevin West and Carl Bergstrom at the University of Washington as part of the Calling Bullshit project. All images are either computer-generated from thispersondoesnotexist.com using the StyleGAN software, or real photographs from the FFHQ dataset of Creative Commons and public domain images. License rights notwithstanding, we will gladly respect any requests to remove specific images; please send the URL of the results pages showing the image in question.”

Source : Which Face Is Real?

Reverse engineering generative models from a single deepfake image

“Deepfakes have become more believable in recent years. In some cases, humans can no longer easily tell some of them apart from genuine images. Although detecting deepfakes remains a compelling challenge, their increasing sophistication opens up more potential lines of inquiry, such as: What happens when deepfakes are produced not just for amusement and awe, but for malicious intent on a grand scale? Today, we — in partnership with Michigan State University (MSU) — are presenting a research method of detecting and attributing deepfakes that relies on reverse engineering from a single AI-generated image to the generative model used to produce it. Our method will facilitate deepfake detection and tracing in real-world settings, where the deepfake image itself is often the only information detectors have to work with.”

Source : Reverse engineering generative models from a single deepfake image

“NOTE: The audio quality demonstrated here was additionally degraded since we want to avoid improper use of this technology. The purpose of this video is to excite the class about the potential of deep learning, not to deceive anyone. Thus, we purposely lowered the audio quality before publishing to make the synthetic aspect of this video clearer.”

via Alexander Amini

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