{"id":105302,"date":"2022-10-13T15:36:48","date_gmt":"2022-10-13T13:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/otkryt-kod-sistemy-mashinnogo-obucheniya-dlya-generaczii-realistichnyh-dvizhenij-cheloveka"},"modified":"2022-10-13T15:36:48","modified_gmt":"2022-10-13T13:36:48","slug":"otkryt-kod-sistemy-mashinnogo-obucheniya-dlya-generaczii-realistichnyh-dvizhenij-cheloveka","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/otkryt-kod-sistemy-mashinnogo-obucheniya-dlya-generaczii-realistichnyh-dvizhenij-cheloveka","title":{"rendered":"Byl otev\u0159en k\u00f3d syst\u00e9mu strojov\u00e9ho u\u010den\u00ed pro generov\u00e1n\u00ed realistick\u00fdch pohyb\u016f \u010dlov\u011bka","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Skupina v\u00fdzkumn\u00edk\u016f z Telavivsk\u00e9 univerzity otev\u0159ela zdrojov\u00e9 k\u00f3dy spojen\u00e9 se syst\u00e9mem strojov\u00e9ho u\u010den\u00ed MDM (Motion Diffusion Model), kter\u00fd umo\u017e\u0148uje generovat realistick\u00e9 pohyby lid\u00ed. K\u00f3d je naps\u00e1n v jazyce Python za pou\u017eit\u00ed frameworku PyTorch a je distribuov\u00e1n pod licenc\u00ed MIT. Pro experimentov\u00e1n\u00ed je mo\u017en\u00e9 pou\u017e\u00edvat jak hotov\u00e9 modely, tak prov\u00e9st \u0161kolen\u00ed model\u016f samostatn\u011b pomoc\u00ed dodan\u00fdch skript\u016f, nap\u0159\u00edklad vyu\u017eit\u00edm kolekce t\u0159\u00edrozm\u011brn\u00fdch obraz\u016f \u010dlov\u011bka HumanML3D. Pro \u0161kolen\u00ed syst\u00e9mu je vy\u017eadov\u00e1na GPU s podporou CUDA. <\/p>\n

Pou\u017eit\u00ed tradi\u010dn\u00edch mo\u017enost\u00ed pro animaci pohyb\u016f lid\u00ed je zt\u00ed\u017eeno komplikacemi spojen\u00fdmi s velk\u00fdm rozmanitost\u00ed mo\u017en\u00fdch pohyb\u016f a obt\u00ed\u017enost\u00ed jejich form\u00e1ln\u00edho popisu, stejn\u011b jako velkou citlivost\u00ed lidsk\u00e9ho vn\u00edm\u00e1n\u00ed na neobvykl\u00e9 pohyby. D\u0159\u00edv\u011bj\u0161\u00ed pokusy o pou\u017eit\u00ed generativn\u00edch model\u016f strojov\u00e9ho u\u010den\u00ed m\u011bly probl\u00e9my s kvalitou a omezenou vyjad\u0159ovac\u00ed schopnost\u00ed. <\/p>\n

V navr\u017een\u00e9m syst\u00e9mu byla u\u010din\u011bna pokus o vyu\u017eit\u00ed difuzn\u00edch model\u016f pro generaci pohyb\u016f, kter\u00e9 jsou ze sv\u00e9 podstaty l\u00e9pe p\u0159izp\u016fsobeny simulaci lidsk\u00fdch pohyb\u016f, ale maj\u00ed i nev\u00fdhody, jako jsou vysok\u00e9 n\u00e1roky na v\u00fdpo\u010detn\u00ed zdroje a slo\u017eitost \u0159\u00edzen\u00ed. Pro minimalizaci nedostatk\u016f difuzn\u00edch model\u016f je v MDM zapojena neuronov\u00e1 s\u00ed\u0165 s architekturou \u201etransformer\u201c a vzorov\u00e9 p\u0159edpov\u00edd\u00e1n\u00ed m\u00edsto p\u0159edpov\u00edd\u00e1n\u00ed \u0161umu v ka\u017ed\u00e9 f\u00e1zi, co\u017e usnad\u0148uje prevenci anom\u00e1li\u00ed, jako je ztr\u00e1ta kontaktu povrchu s nohou. <\/p>\n

Pro \u0159\u00edzen\u00ed generace je k dispozici mo\u017enost pou\u017eit\u00ed textov\u00e9ho popisu akce v p\u0159irozen\u00e9m jazyce (nap\u0159\u00edklad \u201e\u010dlov\u011bk jde vp\u0159ed a nakl\u00e1n\u00ed se, aby zvedl n\u011bco ze zem\u011b\u201c) nebo pou\u017eit\u00ed standardn\u00edch akc\u00ed, jako je \u201eb\u011bh\u201c a \u201esk\u00e1k\u00e1n\u00ed\u201c. Syst\u00e9m lze tak\u00e9 pou\u017e\u00edt pro \u00fapravu pohyb\u016f a dopln\u011bn\u00ed ztracen\u00fdch detail\u016f. V\u00fdzkumn\u00edci provedli testov\u00e1n\u00ed, p\u0159i kter\u00e9m \u00fa\u010dastn\u00edci vyb\u00edrali z n\u011bkolika variant kvalitn\u011bj\u0161\u00ed v\u00fdsledek \u2014 v 42 % p\u0159\u00edpad\u016f lid\u00e9 dali p\u0159ednost syntetizovan\u00fdm pohyb\u016fm p\u0159ed skute\u010dn\u00fdmi.

\r\n \"P\u0159ehr\u00e1t\r\n
<\/div>\r\n <\/div><\/center>
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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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