{"id":2205,"date":"2025-05-27T09:56:40","date_gmt":"2025-05-27T07:56:40","guid":{"rendered":"https:\/\/octodeep.com\/blog\/?p=2205"},"modified":"2025-08-18T11:18:15","modified_gmt":"2025-08-18T09:18:15","slug":"ai-video-a-nova-era-ve-svete-digitalniho-obsahu","status":"publish","type":"post","link":"https:\/\/octodeep.com\/blog\/ai-video-a-nova-era-ve-svete-digitalniho-obsahu\/","title":{"rendered":"AI video a nov\u00e1 \u00e9ra ve sv\u011bt\u011b digit\u00e1ln\u00edho obsahu"},"content":{"rendered":"\n

Sv\u011bt um\u011bl\u00e9 inteligence<\/a> se nezastaviteln\u011b posouv\u00e1 kup\u0159edu, doned\u00e1vna byla tvorba videa dom\u00e9nou filma\u0159\u016f, anim\u00e1tor\u016f a st\u0159iha\u010d\u016f. Dnes u\u017e to tak nen\u00ed. Sta\u010d\u00ed zadat spr\u00e1vn\u00fd prompt<\/a><\/strong> a video je na sv\u011bt\u011b. Um\u011bl\u00e1 inteligence<\/a> u\u017e um\u00ed rozh\u00fdbat va\u0161e n\u00e1pady bez kamery a slo\u017eit\u00e9 techniky. <\/p>\n\n\n\n

Videa generovan\u00e1 s AI nen\u00e1vratn\u011b m\u011bn\u00ed nejen zp\u016fsob, jak vznik\u00e1 pohybliv\u00fd obsah, ale i to jak vn\u00edm\u00e1me realitu. Z jednoduch\u00e9ho textu<\/a> dok\u00e1\u017ee AI vygenerovat obraz, pohyb i hlas b\u011bhem n\u011bkolika m\u00e1lo minut, a to a\u0165 u\u017e jde o vir\u00e1ln\u00ed TikTok, produktovou reklamu nebo animovan\u00fd p\u0159\u00edb\u011bh. To co bylo technicky n\u00e1ro\u010dn\u00e9, je najednou p\u0159\u00edstupn\u00e9 t\u00e9m\u011b\u0159 ka\u017ed\u00e9mu – market\u00e9rovi, tv\u016frci, firm\u011b i b\u011b\u017en\u00fdm u\u017eivatel\u016fm.  <\/p>\n\n\n\n

Aktu\u00e1ln\u011b si m\u016f\u017eete vyzkou\u0161et generovat videa pomoc\u00ed um\u011bl\u00e9 inteligence i v aplikaci OCTODEEP<\/strong><\/a>, a to ji\u017e ve verzi BASIC<\/strong><\/a> za 397,- <\/strong>m\u011bs\u00ed\u010dn\u011b. <\/p>\n\n\n\n

\"Octodeep<\/a><\/figure>\n\n\n\n

Co je AI video a jak funguje? <\/h2>\n\n\n\n

Videa generovan\u00e1 um\u011blou inteligenc\u00ed funguj\u00ed zkombinov\u00e1n\u00edm strojov\u00e9ho u\u010den\u00ed<\/a>, anal\u00fdzy dat a generativn\u00edch model\u016f<\/a><\/strong>, kter\u00e9 napodobuj\u00ed lidskou kreativitu. <\/p>\n\n\n\n

AI video modely<\/a> jsou tr\u00e9novan\u00e9 na obrovsk\u00fdch datab\u00e1z\u00edch vide\u00ed a obr\u00e1zk\u016f. B\u011bhem tr\u00e9ninku se u\u010d\u00ed to, jak vypadaj\u00ed objekty v pohybu<\/strong>, jak funguje sv\u011btlo, perspektiva a kamera<\/strong>, co znamen\u00e1 ur\u010dit\u00fd styl <\/strong>(nap\u0159. \u201eanime\u201c, \u201enoir\u201c, \u201edokument\u00e1rn\u00ed\u201c), a tak\u00e9 to jak na sebe logicky navazuj\u00ed sn\u00edmky<\/strong> (frame po framu).<\/p>\n\n\n\n

V\u00fdsledkem je model, kter\u00fd rozum\u00ed jak obsahu<\/strong> (co vid\u00edme), tak \u010dasov\u00e9 dynamice<\/strong> (jak se v\u011bci h\u00fdbou).<\/p>\n\n\n\n

    \n
  1. Text-to-video<\/strong><\/li>\n<\/ol>\n\n\n\n

    Zad\u00e1te textov\u00fd popis sc\u00e9ny nap\u0159.: \u201eSurfa\u0159 jedouc\u00ed na ob\u0159\u00ed vln\u011b p\u0159i z\u00e1padu slunce, realistick\u00fd styl\u201c a AI b\u011bhem p\u00e1r minut vytvo\u0159\u00ed kr\u00e1tk\u00e9 video, kter\u00e9 vypad\u00e1, jako byste ho nato\u010dili dronem na Havaji. <\/p>\n\n\n\n

    Kvalita vide\u00ed se m\u016f\u017ee li\u0161it na z\u00e1klad\u011b toho, jak\u00fd model pro tvorbu AI vide\u00ed pou\u017eijete.<\/p>\n\n\n\n

    V\u011bt\u0161ina model\u016f tvo\u0159\u00ed 3-10 sekundov\u00e1 videa<\/strong>, kter\u00e1 jsou ide\u00e1ln\u00ed pro soci\u00e1ln\u00ed s\u00edt\u011b, prezentace<\/a> nebo vizu\u00e1ln\u00ed koncepty.<\/p>\n\n\n\n

    Prompt<\/strong>: Vytvo\u0159 ultrarealistick\u00e9 video mlad\u00e9 kan\u010d\u00ed rodinky, kter\u00e1 je v lese a hled\u00e1 ob\u017eivu. Ml\u00e1\u010fata divo\u010d\u00e1k\u016f, kter\u00e9 maj\u00ed je\u0161t\u011b st\u00e1le pruhov\u00e9 zbarven\u00ed srsti b\u011bhaj\u00ed okolo matky, kter\u00e1 ryje ryp\u00e1kem v zemi a hled\u00e1 j\u00eddlo. Les je listnat\u00fd a proz\u00e1\u0159en\u00fd sv\u011btlem. Obr\u00e1zek<\/a> vypad\u00e1 co nejv\u00edce realisticky – v\u010detn\u011b hl\u00edny, strom\u016f a dal\u0161\u00edch detail\u016f. Pohled na divo\u010d\u00e1ky je p\u0159es ke\u0159, kter\u00fd p\u0159irozen\u011b r\u00e1mcuje okraje obr\u00e1zku.<\/p>\n\n\n\n

    Zdroj: OCTODEEP<\/a>
    Video vygenerovan\u00e9 pomoc\u00ed AI video modelu Ray 2 p\u0159es aplikaci OCTODEEP. <\/figcaption><\/figure>\n\n\n\n
      \n
    1. Photo-to-video<\/strong><\/li>\n<\/ol>\n\n\n\n

      Dal\u0161\u00ed mo\u017enost\u00ed tvorby AI videa je rozh\u00fdb\u00e1n\u00ed statick\u00e9ho obr\u00e1zku<\/strong>. M\u016f\u017eete rozh\u00fdbat AI vygenerovan\u00fd portr\u00e9t, fantasy krajinu, ale tak\u00e9 nap\u0159\u00edklad va\u0161\u00ed vlastn\u00ed fotografii. Sta\u010d\u00ed nahr\u00e1t v\u00e1\u0161 obr\u00e1zek a AI k n\u011bmu p\u0159id\u00e1 jemn\u00e9 pohyby, vln\u011bn\u00ed vlas\u016f, t\u0159epot list\u00ed, sv\u011btelnou animaci, rotaci kamery nebo i pohyb postavy – podle zad\u00e1n\u00ed v podob\u011b promptu<\/a>.<\/p>\n\n\n\n

      Tento p\u0159\u00edstup je ide\u00e1ln\u00ed nap\u0159\u00edklad pro: vizu\u00e1ln\u011b poutav\u00e9 stories a reels<\/strong>, trailerov\u00e9 animace k \u010dl\u00e1nk\u016fm a podcast\u016fm<\/strong>, nebo t\u0159eba pohybuj\u00edc\u00ed se moodboardy<\/strong>. <\/p>\n\n\n\n

      \n

      Prompt<\/strong> v\u00fdchoz\u00edho obr\u00e1zku<\/strong>: Vygeneruj mi realistick\u00fd obr\u00e1zek mlad\u00e9 \u017eeny, p\u0159ibli\u017en\u011b 20 let, kter\u00e1 je tenistka a vyhr\u00e1la z\u00e1pas. Stoj\u00ed na stup\u00ednk\u016f v\u00edt\u011bz\u016f, v ruce dr\u017e\u00ed kv\u011bty a na krku m\u00e1 medaili. Jej\u00ed tv\u00e1\u0159 je \u0161\u0165astn\u00e1, m\u00e1 \u0161irok\u00fd \u00fasm\u011bv, je j\u00ed vidno i zuby. Ruku, ve kter\u00e9 dr\u017e\u00ed kv\u011bty zdv\u00edh\u00e1 k oblak\u016fm. Perspektiva, na kterou se na d\u00edvku d\u00edv\u00e1me je m\u00edrn\u011b zespodu nahoru.<\/p>\n\n\n\n

      \"\"<\/a>
      Zdroj: OCTODEEP<\/a>
      Obr\u00e1zek vygenerovan\u00fd p\u0159es aplikaci OCTODEEP v modelu       Imagen<\/a> 3.<\/figcaption><\/figure>\n\n\n\n

      Prompt k videu<\/strong>: Rozpohybuj mi obr\u00e1zek t\u00e9to mlad\u00e9 \u017eeny, p\u0159ibli\u017en\u011b 20 let, kter\u00e1 je tenistka a vyhr\u00e1la z\u00e1pas. Stoj\u00ed na stup\u00ednk\u016f v\u00edt\u011bz\u016f, v ruce dr\u017e\u00ed kv\u011bty a zdvih\u00e1 je nad hlavu. Na krku m\u00e1 medaili. Jej\u00ed tv\u00e1\u0159 je \u0161\u0165astn\u00e1, \u0161iroce se usm\u00edv\u00e1, je j\u00ed vidno i zuby. Perspektiva, na kterou se na d\u00edvku d\u00edv\u00e1me je m\u00edrn\u011b zespodu nahoru.<\/p>\n\n\n\n

      Zdroj: OCTODEEP<\/a>
      Video vygenerovan\u00e9 pomoc\u00ed AI video modelu Ray 2 p\u0159es aplikaci OCTODEEP. <\/figcaption><\/figure>\n\n\n\n
      \n
      \n \ud83d\udc19<\/span>\n TIP:<\/strong>\n <\/div>\n

      \nP\u0159i generov\u00e1n\u00ed videa funkc\u00ed photo-to-video nen\u00ed nutn\u00e9 ps\u00e1t podrobn\u00fd prompt, sta\u010d\u00ed um\u011bl\u00e9 inteligenci sd\u011blit a\u0165 video rozpohybuje a jak\u00fdm zp\u016fsobem. \n <\/div>\n <\/strong>\n<\/div>\n<\/div>\n\n\n\n
        \n
      1. Editace vide\u00ed pomoc\u00ed um\u011bl\u00e9 inteligence<\/strong><\/li>\n<\/ol>\n\n\n\n

        AI v\u00e1m m\u016f\u017ee pomoct i s \u00fapravou va\u0161eho ji\u017e existuj\u00edc\u00edho videa.<\/p>\n\n\n\n

        Um\u00ed zm\u011bnit styl<\/strong> (p\u0159ev\u00e9st re\u00e1ln\u00e9 video na animovan\u00e9), p\u0159idat efekty a barevn\u00e9 korekce<\/strong>, vy\u010distit \u0161um nebo rozost\u0159en\u00ed<\/strong>, doplnit dabing v ciz\u00edm jazyce<\/strong> nebo upravit form\u00e1t <\/strong>pro soci\u00e1ln\u00ed s\u00edt\u011b.<\/p>\n\n\n\n

        Typ AI videa<\/strong><\/td>Co pot\u0159ebujete<\/strong><\/td>Co dostanete<\/strong><\/td><\/tr>
        Text-to-video<\/strong><\/td>Textov\u00fd popis (prompt)<\/td>Kr\u00e1tk\u00e9 origin\u00e1ln\u00ed video ze slov<\/td><\/tr>
        Photo-to-video<\/strong><\/td>Statick\u00fd obr\u00e1zek<\/td>\u201eO\u017eiven\u00fd\u201c vizu\u00e1l s animac\u00ed pohybu<\/td><\/tr>
        Editace videa<\/strong><\/td>Vlastn\u00ed video<\/td>Upraven\u00e9, stylizovan\u00e9 nebo p\u0159elo\u017een\u00e9 video<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

        Jak AI \u201ep\u0159em\u00fd\u0161l\u00ed\u201c, kdy\u017e generuje video?<\/h3>\n\n\n\n

        Po zad\u00e1n\u00ed promptu si AI nejd\u0159\u00edve vybav\u00ed jak vypadaj\u00ed jednotliv\u00e9 prvky, kter\u00e9 jsou obsa\u017een\u00e9 v promptu<\/strong>. <\/p>\n\n\n\n

        Pak ur\u010d\u00ed kamerov\u00fd pohyb<\/strong> (nap\u0159. z\u00e1b\u011br zep\u0159edu, rotace\u2026). <\/p>\n\n\n\n

        Nakonec vytvo\u0159\u00ed sekvenci sn\u00edmk\u016f<\/strong>, kter\u00e9 na sebe navazuj\u00ed. <\/p>\n\n\n\n

        Nejzn\u00e1m\u011bj\u0161\u00ed AI video modely<\/h2>\n\n\n\n

        K vytv\u00e1\u0159en\u00ed vide\u00ed pomoc\u00ed um\u011bl\u00e9 inteligence existuje n\u011bkolik n\u00e1stroj\u016f<\/a> a ka\u017ed\u00fd m\u00e1 trochu jin\u00e9 zam\u011b\u0159en\u00ed. N\u011bkter\u00e9 se hod\u00ed pro stylizovan\u00e9 animace, jin\u00e9 pro realistick\u00e9 sc\u00e9ny, dal\u0161\u00ed pro editaci nebo tvorbu avatar\u016f. <\/p>\n\n\n\n

        Pika<\/h3>\n\n\n\n

        Model od americk\u00e9 spole\u010dnosti Pika Labs je jeden z nejdostupn\u011bj\u0161\u00edch n\u00e1stroj\u016f pro za\u010d\u00e1te\u010dn\u00edky<\/strong>. Umo\u017e\u0148uje generovat kr\u00e1tk\u00e1 videa na z\u00e1klad\u011b textov\u00e9ho popisu (text-to-video), nebo upravovat nahran\u00e9 z\u00e1b\u011bry – upravit styl, p\u0159idat efekty nebo zm\u011bnit form\u00e1t. Vhodn\u00fd je zejm\u00e9na pro TikTok tv\u016frce<\/strong>, vizu\u00e1ln\u00ed kreativce<\/strong>, moodboardy<\/strong> nebo trailery<\/strong>. <\/p>\n\n\n\n

        Pika<\/a> m\u00e1 bezplatnou verzi<\/strong>, kter\u00e1 m\u00e1 ur\u010dit\u00e1 omezen\u00ed, ale vysta\u010d\u00ed na prvn\u00ed pokusy generov\u00e1n\u00ed AI videa. Placen\u00fd tarif za\u010d\u00edn\u00e1 p\u0159ibli\u017en\u011b od 10 dolar\u016f m\u011bs\u00ed\u010dn\u011b<\/strong>. <\/p>\n\n\n\n

        Runway ML<\/h3>\n\n\n\n

        AI video model od spole\u010dnosti Runway<\/a>, Inc. se s\u00eddlem v New Yorku je o n\u011bco profesion\u00e1ln\u011bji zam\u011b\u0159en\u00fd n\u00e1stroj<\/a>, kter\u00fd zvl\u00e1d\u00e1 tvorbu stylizovan\u00fdch vide\u00ed i pokro\u010dil\u00e9 \u00fapravy. Nab\u00edz\u00ed r\u016fzn\u00e9 kreativn\u00ed filtry, pr\u00e1ci s vrstven\u00edm i video-painting (maz\u00e1n\u00ed objekt\u016f ve videu). Vhodn\u00fd je pro kreativn\u00ed studia, market\u00e9ry, YouTubery i edukaci. <\/p>\n\n\n\n

        Z\u00e1kladn\u00ed tarif za\u010d\u00edn\u00e1 od 12 dolar\u016f m\u011bs\u00ed\u010dn\u011b<\/strong>, ale Runway nab\u00edz\u00ed i omezen\u00fd bezplatn\u00fd pl\u00e1n. <\/p>\n\n\n\n

        Kaiber<\/h3>\n\n\n\n

        AI model<\/a> od spole\u010dnosti Superstudio se s\u00eddlem v San Francisku, kter\u00fd je zn\u00e1m\u00fd hlavn\u011b pro svou funkci rozh\u00fdbat statick\u00e9 obr\u00e1zky, tedy funkci photo-to-video. Sta\u010d\u00ed nahr\u00e1t vizu\u00e1l a AI p\u0159id\u00e1 pohyb kamery, efekty a jemnou animaci. Um\u00ed tak\u00e9 vytvo\u0159it video, kter\u00e9 je \u201ehudebn\u011b slad\u011bn\u00e9\u201c, jako t\u0159eba videoklip nebo vizualizace. Superstudio je startup s v\u00fdrazn\u00fdm vizu\u00e1ln\u00edm zam\u011b\u0159en\u00edm a jejich c\u00edlovou skupinou jsou hlavn\u011b kreativci, hudebn\u00edci a digit\u00e1ln\u00ed tv\u016frci. <\/p>\n\n\n\n

        Kaiber<\/a> m\u00e1 p\u0159\u00edstupnou free verzi s omezen\u00fdmi kredity a z\u00e1kladn\u00ed m\u011bs\u00ed\u010dn\u00ed p\u0159edplatn\u00e9 stoj\u00ed 15 dolar\u016f m\u011bs\u00ed\u010dn\u011b<\/strong>. <\/p>\n\n\n\n

        Kaiber se proslavil t\u00edm, \u017ee jeho technologie<\/a> byla vyu\u017eita nap\u0159. v hudebn\u00edm klip Linkin Park – Lost<\/strong>. <\/p>\n\n\n\n

        Synthesia<\/h3>\n\n\n\n

        AI video model od britsk\u00e9 spole\u010dnosti Synthesia<\/a> Ltd. je specializovan\u00fd n\u00e1stroj na generov\u00e1n\u00ed vide\u00ed s mluv\u00edc\u00edmi avatary<\/strong>. Avatar\u016fm je mo\u017en\u00e9 vybrat vzhled a um\u00ed mluvit v r\u016fzn\u00fdch jazyc\u00edch a je mo\u017enost vybrat hlas a styl mluvy. Vyu\u017e\u00edvan\u00fd je hlavn\u011b ve firemn\u00edm prost\u0159ed\u00ed pro \u0161kolen\u00ed, uv\u00edtac\u00ed videa nebo prezentace v r\u016fzn\u00fdch jazyc\u00edch. Neumo\u017e\u0148uje v\u0161ak klasick\u00e9 animace nebo stylizaci sc\u00e9n – je zam\u011b\u0159en\u00e1 v\u00fdhradn\u011b na \u201etalking head\u201c v\u00fdstupy. <\/p>\n\n\n\n

        Jedn\u00e1 se o jeden z t\u011bch dra\u017e\u0161\u00edch model\u016f, bezplatn\u00e1 verze je velmi omezen\u00e1 a z\u00e1kladn\u00ed starter p\u0159edplatn\u00e9 stoj\u00ed 29 dolar\u016f<\/strong> m\u011bs\u00ed\u010dn\u011b. <\/p>\n\n\n\n

        Sora<\/h3>\n\n\n\n

        Video model od OpenAI<\/a>, kter\u00fd um\u00ed generovat realistick\u00e1 videa ve vysok\u00e9 kvalit\u011b, ch\u00e1pe prostorovou dynamiku a fyziku a funguje na b\u00e1zi text-to-video. Sora<\/a> zat\u00edm nen\u00ed ve\u0159ejn\u011b dostupn\u00e1, jeliko\u017e je st\u00e1le v testovac\u00ed f\u00e1zi. <\/strong>Vhodn\u00e1 bude hlavn\u011b pro ty, kte\u0159\u00ed cht\u011bj\u00ed tvo\u0159it realistick\u00fd obsah, zejm\u00e9na pro reklamn\u00ed agentury. <\/p>\n\n\n\n

        Ray 2<\/h3>\n\n\n\n

        Ray 2<\/a> je zam\u011b\u0159en\u00fd na generov\u00e1n\u00ed plynul\u00fdch a stylizovan\u00fdch vide\u00ed ze slovn\u00edho popisu (text-to-video). Oproti p\u0159edchoz\u00edm verz\u00edm (Ray 1.6, Ray Flash) nab\u00edz\u00ed lep\u0161\u00ed pr\u00e1ci s detaily, sv\u011btlem, perspektivou a p\u0159irozen\u011bj\u0161\u00ed animaci sc\u00e9n. Dok\u00e1\u017ee vytv\u00e1\u0159et atmosf\u00e9rick\u00e1 nebo abstraktn\u00ed videa s filmov\u00fdm n\u00e1dechem. Hod\u00ed se pro um\u011bleck\u00e1 videa, trailery, sci-fi nebo fantasy sc\u00e9ny i storytelling. <\/p>\n\n\n\n

        Videa jsou v modelu dostupn\u00e1 pouze s p\u0159edplatn\u00fdm, s t\u00edm \u017ee z\u00e1kladn\u00ed verze je v\u00fdrazn\u011b omezen\u011bj\u0161\u00ed ne\u017e jej\u00ed dal\u0161\u00ed roz\u0161\u00ed\u0159en\u00ed. \u201eWeb Lite Plan\u201c stoj\u00ed 9,99 <\/strong>dolar\u016f m\u011bs\u00ed\u010dn\u011b. <\/p>\n\n\n\n

        Ray 2 spole\u010dn\u011b s jeho star\u0161\u00edmi verzemi je s p\u0159edplatn\u00fdm BASIC, kter\u00e9 stoj\u00ed 397,- dostupn\u00fd v na\u0161\u00ed aplikaci OCTODEEP. V aplikaci se m\u016f\u017eete pod\u00edvat i na knihovnu inspirac\u00ed, kde jsou p\u0159\u00edstupn\u00e9 ji\u017e hotov\u00e9 prompty a jejich video v\u00fdstupy. <\/p>\n\n\n\n

        Prompt<\/strong>: Vytvo\u0159 mi realistick\u00e9 video majest\u00e1tn\u00edho b\u011blostn\u00e9ho jednoro\u017ece proch\u00e1zej\u00edc\u00edm se v mystick\u00e9m lese za \u00fasvitu, jemn\u00e9 rann\u00ed sv\u011bteln\u00e9 paprsky pronikaj\u00ed vlhkou mlhou. Detailn\u00ed realistick\u00fd styl, leskl\u00e1 b\u00edl\u00e1 srst s perle\u0165ov\u00fdm odleskem, dlouh\u00e1 b\u00edla spl\u00fdvav\u00e1 h\u0159\u00edva, pozad\u00ed s kouzelnou atmosf\u00e9rou ve vysok\u00e9m rozli\u0161en\u00ed.<\/p>\n\n\n\n

        Zdroj: OCTODEEP<\/a>
        Video vygenerovan\u00e9 pomoc\u00ed AI video modelu Ray 2 p\u0159es aplikaci OCTODEEP. <\/figcaption><\/figure>\n\n\n\n

        Co v\u0161echno lze vygenerovat jako AI video? <\/h2>\n\n\n\n

        Um\u011bl\u00e1 inteligence dnes zvl\u00e1d\u00e1 \u0161irok\u00e9 spektrum video form\u00e1t\u016f – od kr\u00e1tk\u00fdch klip\u016f p\u0159es um\u011bleck\u00e9 animace a\u017e po prezentace a vysv\u011btluj\u00edc\u00ed z\u00e1b\u011bry. Z\u00e1le\u017e\u00ed jen na tom, co chcete tvo\u0159it a kter\u00fd model k tomu pou\u017eijete. <\/p>\n\n\n\n

        P\u0159es AI video m\u016f\u017eete generovat: <\/p>\n\n\n\n