{"id":7211,"date":"2023-11-08T21:06:32","date_gmt":"2023-11-08T21:06:32","guid":{"rendered":"https:\/\/dailyai.com\/?p=7211"},"modified":"2023-11-09T20:54:25","modified_gmt":"2023-11-09T20:54:25","slug":"studies-reveal-how-ai-generated-faces-reliably-trick-humans","status":"publish","type":"post","link":"https:\/\/dailyai.com\/pt\/2023\/11\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\/","title":{"rendered":"Estudos revelam como os rostos gerados por IA enganam os humanos de forma fi\u00e1vel"},"content":{"rendered":"<p><strong>Uma experi\u00eancia recente revelou que os humanos conseguem identificar corretamente rostos humanos gerados por IA em apenas 48,2% das vezes.\u00a0<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">O <\/span><a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.212048111\"><span style=\"font-weight: 400;\">estudo<\/span><\/a><span style=\"font-weight: 400;\"> envolveu 315 participantes com a tarefa de distinguir entre rostos reais e rostos gerados por IA. Os rostos foram sintetizados utilizando o StyleGAN2, um motor de \u00faltima gera\u00e7\u00e3o capaz de criar semelhan\u00e7as humanas diversas e realistas.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Os resultados foram simultaneamente fascinantes e ligeiramente enervantes; a capacidade dos participantes para identificar rostos gerados por IA rondou os 48,2% - pior do que um lan\u00e7amento de moeda ao ar. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c9 s<\/span><span style=\"font-weight: 400;\">uggests that to the average person, AI deep fake faces are virtually indistinguishable from those of real human beings. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pode ver com os seus pr\u00f3prios olhos como estes rostos s\u00e3o realistas visitando <\/span><a href=\"https:\/\/this-person-does-not-exist.com\/en\"><span style=\"font-weight: 400;\">esta-pessoa-n\u00e3o-existe.com<\/span><\/a><span style=\"font-weight: 400;\">que apresenta imagens realistas geradas por IA de praticamente qualquer pessoa, em qualquer idade ou de qualquer origem. E esta ferramenta j\u00e1 tem alguns anos.\u00a0<\/span><\/p>\n<figure id=\"attachment_7213\" aria-describedby=\"caption-attachment-7213\" style=\"width: 666px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7213\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot.png\" alt=\"Face da IA\" width=\"666\" height=\"645\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot.png 952w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-300x291.png 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-768x744.png 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-370x358.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-800x775.png 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-20x19.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-740x717.png 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-24x24.png 24w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/thispersondoesnot-50x48.png 50w\" sizes=\"auto, (max-width: 666px) 100vw, 666px\" \/><figcaption id=\"caption-attachment-7213\" class=\"wp-caption-text\">Parece-se com algu\u00e9m que conhece? Essa pessoa n\u00e3o existe.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Mais a fundo, o estudo tamb\u00e9m explorou se certas ra\u00e7as e g\u00e9neros eram mais dif\u00edceis de classificar corretamente.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Observou-se que os rostos brancos, especialmente os masculinos, eram os mais dif\u00edceis de identificar corretamente como reais ou sint\u00e9ticos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A raz\u00e3o pela qual isto acontece pode ter origem na sobre-representa\u00e7\u00e3o de rostos brancos no conjunto de dados de treino da IA, levando a rostos sint\u00e9ticos brancos mais realistas, de acordo com o estudo.\u00a0<\/span><\/p>\n<figure id=\"attachment_7212\" aria-describedby=\"caption-attachment-7212\" style=\"width: 665px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7212\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-991x1024.jpg\" alt=\"Face da IA\" width=\"665\" height=\"687\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-991x1024.jpg 991w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-290x300.jpg 290w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-768x794.jpg 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-1486x1536.jpg 1486w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-1982x2048.jpg 1982w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-370x382.jpg 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-800x827.jpg 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-20x21.jpg 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-740x765.jpg 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-1600x1654.jpg 1600w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-1320x1364.jpg 1320w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-24x24.jpg 24w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces-46x48.jpg 46w, https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/AIfaces.jpg 2000w\" sizes=\"auto, (max-width: 665px) 100vw, 665px\" \/><figcaption id=\"caption-attachment-7212\" class=\"wp-caption-text\">Exemplos de rostos utilizados no estudo. Fonte: <a href=\"https:\/\/www.pnas.org\/doi\/full\/10.1073\/pnas.2120481119\">PNAS<\/a>.<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Ainda mais intrigante foi a descoberta de que os participantes classificaram os rostos sint\u00e9ticos como mais fi\u00e1veis do que os reais, embora por uma margem modesta.\u00a0<\/span><span style=\"font-weight: 400;\">Este facto poder\u00e1 indiciar uma prefer\u00eancia subconsciente pelas caracter\u00edsticas m\u00e9dias que a IA tende a gerar, que, segundo o estudo, foram consideradas mais fi\u00e1veis em investiga\u00e7\u00f5es anteriores.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> Um aumento subtil da probabilidade de algu\u00e9m interpretar uma imagem de IA como sendo mais fi\u00e1vel do que uma imagem real \u00e9 muito preocupante quando \u00e9 alargado a n\u00edveis populacionais.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">A interpreta\u00e7\u00e3o do c\u00e9rebro de rostos gerados por IA \u00e9 complexa<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A <\/span><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0042698922000852\"><span style=\"font-weight: 400;\">segundo estudo recente<\/span><\/a><span style=\"font-weight: 400;\"> pediram aos participantes que identificassem se um rosto era real ou n\u00e3o enquanto estavam envolvidos numa tarefa concebida para os distrair.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> N\u00e3o conseguiam distinguir conscientemente entre os dois, mas as coisas tornaram-se mais confusas quando a sua atividade cerebral foi medida atrav\u00e9s de um eletroencefalograma (EEG).\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cerca de 170 milissegundos depois de verem os rostos, a atividade el\u00e9ctrica do c\u00e9rebro ilustrava diferen\u00e7as quando os participantes olhavam para imagens reais e sint\u00e9ticas. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Parecia que t<\/span><span style=\"font-weight: 400;\">mente inconsciente \"sabia\" quando uma imagem podia ser gerada por IA melhor do que a mente consciente. Mas, apesar disso, os participantes n\u00e3o conseguiram rotular conscientemente rostos de IA com um grau de confian\u00e7a robusto.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Poder\u00edamos especular que existe uma camada consciente de interpreta\u00e7\u00e3o em que damos aos rostos gerados pela IA \"o benef\u00edcio da d\u00favida\", mesmo quando n\u00e3o temos a certeza. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Afinal de contas, estamos intrinsecamente ligados para identificar e confiar em rostos humanos, pelo que \u00e9 excecionalmente dif\u00edcil separarmo-nos disso e isolar inconsist\u00eancias que possam revelar uma imagem gerada por IA.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c9 quase como se as suspeitas iniciais dessem lugar a uma confirma\u00e7\u00e3o mais afirmativa de que a pessoa \u00e9, de facto, real quando n\u00e3o o \u00e9 - uma forma de pedido de desculpas instigado pela IA.\u00a0<\/span><\/p>\n<p>Seja qual for a explica\u00e7\u00e3o para esta peculiaridade, as falsifica\u00e7\u00f5es profundas geradas pela IA s\u00e3o um risco priorit\u00e1rio para a tecnologia, com um <a href=\"https:\/\/dailyai.com\/pt\/2023\/11\/an-ai-generated-fake-nude-controversy-hits-a-new-jersey-school\/\">esc\u00e2ndalo recente<\/a> a atingir uma escola de New Jersey.<\/p>\n<p><a href=\"https:\/\/dailyai.com\/pt\/2023\/10\/deepfake-scam-ad-of-mrbeast-published-on-tiktok\/\">Fraudes profundas e falsas<\/a> s\u00e3o uma ocorr\u00eancia regular, e h\u00e1 preocupa\u00e7\u00f5es palp\u00e1veis de que os conte\u00fados falsos gerados por IA <a href=\"https:\/\/dailyai.com\/pt\/2023\/08\/us-regulators-target-ai-generated-deep-fakes-ahead-of-2024-elections\/\">pode afetar os comportamentos de voto<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Uma experi\u00eancia recente revelou que os humanos conseguem identificar corretamente rostos humanos gerados por IA em apenas 48,2% das vezes.  O estudo envolveu 315 participantes com a tarefa de diferenciar entre rostos reais e rostos gerados por IA. Os rostos foram sintetizados utilizando o StyleGAN2, um motor de \u00faltima gera\u00e7\u00e3o capaz de criar semelhan\u00e7as humanas diversas e realistas.  Os resultados foram ao mesmo tempo fascinantes e ligeiramente enervantes; a capacidade dos participantes para identificar rostos gerados por IA rondou os 48,2% - pior do que um lan\u00e7amento de moeda ao ar. Isto sugere que, para uma pessoa comum, os rostos falsos criados pela IA s\u00e3o praticamente indistingu\u00edveis dos rostos de seres humanos reais. Pode ver por si pr\u00f3prio como estes rostos s\u00e3o realistas<\/p>","protected":false},"author":2,"featured_media":7214,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[162,413,451],"class_list":["post-7211","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-deep-fake","tag-deepfakes","tag-misinformation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Studies reveal how AI-generated faces reliably trick humans | DailyAI<\/title>\n<meta name=\"description\" content=\"A recent experiment found that humans can correctly identify AI-generated human faces just 48.2% of the time.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/pt\/2023\/11\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Studies reveal how AI-generated faces reliably trick humans | DailyAI\" \/>\n<meta property=\"og:description\" content=\"A recent experiment found that humans can correctly identify AI-generated human faces just 48.2% of the time.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/pt\/2023\/11\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-08T21:06:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T20:54:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/11\/shutterstock_2268966863.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:site\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/11\\\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/11\\\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Studies reveal how AI-generated faces reliably trick humans\",\"datePublished\":\"2023-11-08T21:06:32+00:00\",\"dateModified\":\"2023-11-09T20:54:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/11\\\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\\\/\"},\"wordCount\":560,\"publisher\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/11\\\/studies-reveal-how-ai-generated-faces-reliably-trick-humans\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dailyai.com\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/shutterstock_2268966863.jpg\",\"keywords\":[\"Deep fake\",\"Deepfakes\",\"Misinformation\"],\"articleSection\":[\"Ethics &amp; 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