[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.cutstar.cz\/videa-se-stavaji-neduveryhodna\/#Article","mainEntityOfPage":"https:\/\/www.cutstar.cz\/videa-se-stavaji-neduveryhodna\/","headline":"Videa se st\u00e1vaj\u00ed ned\u016fv\u011bryhodn\u00e1","name":"Videa se st\u00e1vaj\u00ed ned\u016fv\u011bryhodn\u00e1","description":"Podobn\u00fd jev je zn\u00e1m u fotografi\u00ed, kter\u00e9 d\u00edky fotomont\u00e1\u017e\u00edm mohou b\u00fdt dokreslov\u00e1ny nebo upraveny. Laik nemus\u00ed tuto zm\u011bnu v\u016fbec post\u0159ehnout. D\u00edky modern\u00edm technologi\u00edm se ji\u017e…","datePublished":"2025-02-28","dateModified":"2023-04-30","author":{"@type":"Person","@id":"https:\/\/www.cutstar.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.cutstar.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/ee69a086fc043006d66000ff5e288b6b088fc8fa323128f3849437410a854832?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/ee69a086fc043006d66000ff5e288b6b088fc8fa323128f3849437410a854832?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"cutstar.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.cutstar.cz\/wp-content\/uploads\/img_a292017_w2188_t1504207904.jpg","url":"https:\/\/www.cutstar.cz\/wp-content\/uploads\/img_a292017_w2188_t1504207904.jpg","height":0,"width":0},"url":"https:\/\/www.cutstar.cz\/videa-se-stavaji-neduveryhodna\/","wordCount":402,"articleBody":"Podobn\u00fd jev je zn\u00e1m u fotografi\u00ed, kter\u00e9 d\u00edky fotomont\u00e1\u017e\u00edm mohou b\u00fdt dokreslov\u00e1ny nebo upraveny. Laik nemus\u00ed tuto zm\u011bnu v\u016fbec post\u0159ehnout. D\u00edky modern\u00edm technologi\u00edm se ji\u017e dnes d\u00e1 prov\u00e1d\u011bt p\u0159esv\u011bd\u010div\u00e9 manipulace v\u00a0oblasti vide\u00ed ale i z\u00e1znam\u016f lidsk\u00e9ho hlasu. V\u00a0budoucnosti se velmi \u010dasto budeme setk\u00e1vat, \u017ee n\u00e1m bude libovoln\u00e1 osobnost sv\u00fdm hlasem tvrdit n\u011bco velmi kontroverzn\u00edho. Nezbude n\u00e1m, ne\u017e si poka\u017ed\u00e9 po\u010dkat na p\u0159\u00edpadn\u00e9 dementi nov\u011b vypu\u0161t\u011bn\u00e9 informace. \u00a0\u00a0\u00a0Na internetu se kolikr\u00e1t uchyt\u00ed i zjevn\u00fd HOAX (fale\u0161n\u00e1 popla\u0161n\u00e1 zpr\u00e1va) nap\u0159. Pozor na pomeran\u010de s\u00a0krv\u00ed a HIV. S\u00a0nov\u00fdmi technologiemi a rozvojem um\u011bl\u00e9 inteligence budou podvrhy \u010d\u00edm d\u00e1l t\u00edm h\u016f\u0159e odhaliteln\u00e9 a nebudou \u0161\u00ed\u0159eny jen formou fotek a text\u016f.\u00a0Zfal\u0161ovan\u00fd proslov ObamyNa Washingtonsk\u00e9 univerzit\u011b ned\u00e1vno upravili za pou\u017eit\u00ed strojov\u00e9ho u\u010den\u00ed (machine learning)video b\u00fdval\u00e9ho prezidenta USA. P\u0159i zm\u011bn\u011b jednoho z\u00a0proslovu d\u0159\u00edv\u011bj\u0161\u00edho nejmocn\u011bj\u0161\u00edho mu\u017ee planety nezaregistrujete tak\u0159ka \u017e\u00e1dn\u00fd viditeln\u00fd rozd\u00edl oproti origin\u00e1lu a\u017e na obsah slov, kter\u00e9 sly\u0161\u00edte. \u00a0\u00a0Obdobn\u00fd projekt z\u00a0univerzity ve Stanfordu, Face2Face, um\u00ed v\u00a0re\u00e1ln\u00e9m \u010dase zaznamen\u00e1vat mimiku \u017eiv\u00e9ho herce do videa. Pohyby herce byli okop\u00edrov\u00e1ny z\u00a0projev\u016f nap\u0159\u00edklad George Bushe nebo Arnolda Shwarzeneggera. Nov\u00e1 metoda ov\u0161em pou\u017e\u00edv\u00e1 algoritmu, kter\u00fd se u\u010d\u00ed, jak kter\u00fd pohyb obli\u010deje p\u0159i projevu vypad\u00e1. Ide\u00e1ln\u00edm adeptem k\u00a0pokusu byl pr\u00e1v\u011b Barack Obama, kter\u00fd m\u00e1 voln\u011b dostupn\u00e9 hodiny videoz\u00e1znam\u016f ze sv\u00fdch projev\u016f a to ve vysok\u00e9m rozli\u0161en\u00ed. Progr\u00e1mek se b\u011bhem p\u0159ehr\u00e1v\u00e1n\u00ed vide\u00ed u\u010dil mimiku a fon\u00e9m z proslovu.P\u0159i \u00faprav\u011b videa si v\u00fdzkumn\u00edci pr\u00e1ci hodn\u011b zjednodu\u0161ily. Celou \u00fapravu provedli jen vlo\u017een\u00edm v\u00fd\u0159ezu z oblasti okolo \u00fast do ji\u017e existuj\u00edc\u00edho videa. Nemuseli tedy upravovat mimiku horn\u00ed \u010d\u00e1sti obli\u010deje ani pohyby hlavy. Nap\u0159\u00edklad se tato metoda d\u00e1 vyu\u017e\u00edt pou\u017eit\u00edm zvukov\u00e9 stopy audio nahr\u00e1vky a utvo\u0159it zn\u00ed neexistuj\u00edc\u00ed televizn\u00ed projev. Podvrh zat\u00edm m\u00e1 jen omezen\u00e9 mo\u017enosti, ale je na n\u011bm kr\u00e1sn\u011b demonstrov\u00e1no, co m\u016f\u017eeme v budoucnu o\u010dek\u00e1vat.                                                                                                                                                                                                                                                                                                                                                                                                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