{"id":2595,"date":"2013-10-29T08:46:05","date_gmt":"2013-10-29T06:46:05","guid":{"rendered":"http:\/\/slovaklinesmagazin.sk\/cms\/?p=2595"},"modified":"2013-10-29T08:55:07","modified_gmt":"2013-10-29T06:55:07","slug":"televizia-skutocnejsia-ako-realita","status":"publish","type":"post","link":"https:\/\/www.slovaklinesmagazin.sk\/cms\/2013\/10\/televizia-skutocnejsia-ako-realita\/","title":{"rendered":"Telev\u00edzia skuto\u010dnej\u0161ia ako realita?"},"content":{"rendered":"

Technol\u00f3gia 4K zobrazovania u\u00a0telev\u00edzorov u\u017e nie je novinkou. Na n\u00e1\u0161 trh sa pomaly dost\u00e1vaj\u00fa modely od r\u00f4znych v\u00fdrobcov. \u010co to ale vlastne 4K znamen\u00e1 a\u00a0\u010do n\u00e1m div\u00e1kom prin\u00e1\u0161a?<\/strong><\/h3>\n

V\u00a0prvom rade je to kvalitn\u00fd obraz, ktor\u00fd je v\u00a0podan\u00ed 4K naozaj skvel\u00fd. A\u017e tak, \u017ee skuto\u010dn\u00e1 realita sa niekomu m\u00f4\u017ee zda\u0165 m\u00e1lo farebn\u00e1 a\u00a0nedokonal\u00e1. Zobrazenie, farby aj pohyby s\u00fa omnoho vernej\u0161ie, ako u\u00a0\u010dohoko\u013evek, \u010do ste doteraz videli, presnej\u0161ie je aj vykreslenie okr\u00fahlych \u010di diagon\u00e1lnych \u010diar. V\u00e1ha cel\u00e9ho obrazu le\u017e\u00ed v\u00a0naozaj mal\u00fdch detailoch. Tak\u00e9to vykreslenie dok\u00e1\u017ee e\u0161te zv\u00fdrazni\u0165 h\u013abku 3D zobrazenia, \u010do va\u0161u ob\u00fdva\u010dku premen\u00ed na skuto\u010dn\u00e9 dom\u00e1ce kino.<\/p>\n

Trocha te\u00f3rie<\/b><\/p>\n

4K alebo aj UHD \u010di Ultra HD je vlastne nasledovn\u00edkom Full HD \u0161tandardu, ktor\u00fd je dnes celkom be\u017en\u00fd a dostupn\u00fd. Skratka 4K je odvoden\u00e1 od po\u010dtu pixelov, ktor\u00fdch je v\u00a0horizont\u00e1lnom rade pribli\u017ene 4000 (4K = \u0161tyri tis\u00edc). Presn\u00e9 rozl\u00ed\u0161enie 4K obrazoviek pri pomere 16:9 je 3840 x 2160, \u010do znamen\u00e1 viac ako 8 mili\u00f3nov pixelov, teda zobrazovac\u00edch bodov. Jednoducho povedan\u00e9, \u010dim viac pixelov, t\u00fdm viac detailov a\u00a0dokonalej\u0161\u00ed obraz. Len pre porovnanie \u2013 u\u00a0najlep\u0161\u00edch Full HD telev\u00edzi\u00ed je po\u010det pixelov pribli\u017ene \u0161tyrikr\u00e1t men\u0161\u00ed \u2013 \u201elen\u201c asi dva mili\u00f3ny pixelov.<\/p>\n

Samozrejme, po\u010det pixelov pri kvalite zobrazenia nie je jedin\u00fdm d\u00f4le\u017eit\u00fdm faktorom. Svoju rolu zohr\u00e1va aj sledovacia vzdialenos\u0165. Aj tu plat\u00ed jednoduch\u00e1 matematika. \u010c\u00edm hustej\u0161ie rozmiestnenie pixelov, t\u00fdm sa skracuje sledovacia vzdialenos\u0165. Ur\u010dite ste si pri poh\u013eade zbl\u00edzka v\u0161imli najm\u00e4 na HD, ale aj Full HD modeloch mrie\u017eku zobrazovac\u00edch bodov. Obraz sa jav\u00ed rozostren\u00fd a\u00a0bez detailov.<\/p>\n

Takmer ako na sc\u00e9ne<\/b><\/p>\n

U\u00a04K sa to nestane, pixely s\u00fa pr\u00edli\u0161 mal\u00e9 a\u00a0pr\u00edli\u0161 nahusto. Filmy na Ultra HD zariadeniach m\u00f4\u017eete sledova\u0165 vo vzdialenosti za\u010d\u00ednaj\u00facej na 1,5 n\u00e1sobku v\u00fd\u0161ky obrazovky, \u010do u\u00a0star\u0161\u00edch technol\u00f3gi\u00ed sp\u00f4sobovalo v\u00fdrazn\u00e9 zn\u00ed\u017eenie kvality obrazu. Tak\u00e1to vzdialenos\u0165 dok\u00e1\u017ee vtiahnu\u0165 div\u00e1ka priamo do deja filmu alebo hry, preto\u017ee obrazovka \u00faplne vypln\u00ed zorn\u00e9 pole, \u010do div\u00e1ka, \u010di hr\u00e1\u010da ponor\u00ed hlb\u0161ie do deja. Pre niekoho je v\u0161ak pr\u00edjemnej\u0161ie sledova\u0165 telev\u00edziu z\u00a0v\u00e4\u010d\u0161ej vzdialenosti. V\u00a0obidvoch pr\u00edpadoch m\u00e1 obraz \u0161pi\u010dkov\u00fa kvalitu, s\u00a0v\u00fdrazn\u00fdm a\u00a0\u013eahko postrehnute\u013en\u00fdm rozdielom oproti Full HD telev\u00edzi\u00e1m.<\/p>\n

Popredn\u00ed svetov\u00ed v\u00fdrobcovia telev\u00edzorov sa v\u00a0posledn\u00fdch mesiacoch za\u010dali predh\u00e1\u0148a\u0165 v\u00a0propagovan\u00ed svojich 4K produktov. Najm\u00e4 zo za\u010diatku to boli sk\u00f4r pre na\u0161inca nedostupn\u00e9 modely s\u00a0uhloprie\u010dkou 84\u201c a\u00a0cenou \u0161plhaj\u00facou sa k\u00a020 tis\u00edc eur\u00e1m, \u010di dokonca viac. V\u00a0poslednej dobe sa st\u00e1le viac k\u00a0slovu dost\u00e1vaj\u00fa men\u0161ie uhloprie\u010dky najm\u00e4 65 a\u00a055 palcov\u00e9. Tam u\u017e je cena prijate\u013enej\u0161ia, ale st\u00e1le sa pohybujeme za hranicou 3,000 euro.<\/p>\n

 <\/p>\n

4K obsah u\u017e nie je probl\u00e9m<\/b><\/p>\n

Ako to u\u017e pri nov\u00fdch a\u00a0drah\u00fdch technol\u00f3gi\u00e1ch b\u00fdva, najm\u00e4 zo za\u010diatku Ultra HD \u0161tandard nemal ustlan\u00e9 na ru\u017eiach. Oz\u00fdvali sa hlasy, pova\u017euj\u00face Ultra HD \u0161tandard za nepotrebn\u00fd a\u00a0zbyto\u010dn\u00fd, \u010do bolo sp\u00f4soben\u00e9 najm\u00e4 obavou z\u00a0nedostupnosti 4K obsahu, v\u00a0ktorom kvality Ultra HD \u0161tandardu najviac vynikaj\u00fa. To v\u0161ak u\u017e dnes celkom neplat\u00ed. V\u00e4\u010d\u0161ina nov\u00fdch hollywoodskych produkci\u00ed sa \u00faplne be\u017ene to\u010d\u00ed form\u00e1tom 4K a\u00a05K, navy\u0161e s\u00fa u\u017e dlh\u0161ie dostupn\u00e9 Blu Ray nosi\u010de, ktor\u00e9 tie\u017e prenes\u00fa na 4K obrazovky \u0161pi\u010dkov\u00fa kvalitu.<\/p>\n

Za zmienku stoj\u00ed aj fakt, \u017ee dne\u0161n\u00e9 technol\u00f3gie umo\u017e\u0148uj\u00fa upravi\u0165 star\u0161ie SD alebo HD nahr\u00e1vky do form\u00e1tu, ktor\u00fd sa vol\u00e1 remastrovan\u00e9 4K. Ten je prehr\u00e1vate\u013en\u00fd v\u00a0\u0161pi\u010dkovej kvalite, ktor\u00e1 sa bl\u00ed\u017ei origin\u00e1lnej 4K nahr\u00e1vke.<\/p>\n

Okrem toho modern\u00e9 4K telev\u00edzie s\u00fa vybaven\u00e9 funkciou upscallovania klasick\u00e9ho Full HD obrazu na vy\u0161\u0161iu kvalitu. Aj ke\u010f to nie je e\u0161te Ultra HD rozl\u00ed\u0161enie, kvalita obrazu je ur\u010dite vy\u0161\u0161ia ako u\u00a0Full HD. V\u00a0preklade to znamen\u00e1, \u017ee ani neexistuj\u00faci 4K obsah nie je probl\u00e9m, technol\u00f3gie dok\u00e1\u017eu Full HD obsah upravi\u0165 tak, aby sa pribl\u00ed\u017eil 4K \u0161tandardu.<\/p>\n

…a \u010do bude \u010falej?<\/b><\/p>\n

4K u\u00a0n\u00e1s aj vo svete rob\u00ed e\u0161te len svoje prv\u00e9 kroky a\u00a0u\u017e sa za\u010d\u00edna hovori\u0165 o\u00a0tom, \u010do pr\u00edde potom. \u010eal\u0161ia gener\u00e1cia by mala nies\u0165 meno 8K alebo Super High Vision, pri \u0165a\u017eko predstavite\u013enom rozl\u00ed\u0161en\u00ed 7680 x 4320, \u010do je pribli\u017ene 32 mili\u00f3nov pixelov. Pr\u00e1ve touto technol\u00f3giou by mali by\u0165 vyr\u00e1ban\u00e9 prenosy z\u00a0Olympijsk\u00fdch hier v\u00a0Tokiu v\u00a0roku 2020. Cie\u013eom je vytvori\u0165 z\u00e1\u017eitok zo sledovania tak, aby sa \u010do najviac bl\u00ed\u017eil k realite.<\/p>\n","protected":false},"excerpt":{"rendered":"

Technol\u00f3gia 4K zobrazovania u\u00a0telev\u00edzorov u\u017e nie je novinkou. Na n\u00e1\u0161 trh sa pomaly dost\u00e1vaj\u00fa modely od r\u00f4znych v\u00fdrobcov. \u010co to ale vlastne 4K znamen\u00e1 a\u00a0\u010do n\u00e1m div\u00e1kom prin\u00e1\u0161a? V\u00a0prvom rade je to kvalitn\u00fd obraz, ktor\u00fd je v\u00a0podan\u00ed 4K naozaj skvel\u00fd. A\u017e tak, \u017ee skuto\u010dn\u00e1 realita sa niekomu m\u00f4\u017ee zda\u0165 m\u00e1lo farebn\u00e1 a\u00a0nedokonal\u00e1. Zobrazenie, farby aj […]<\/p>\n","protected":false},"author":7,"featured_media":2598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-2595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologie","eq-blocks"],"_links":{"self":[{"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/posts\/2595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/comments?post=2595"}],"version-history":[{"count":4,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/posts\/2595\/revisions"}],"predecessor-version":[{"id":2599,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/posts\/2595\/revisions\/2599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/media\/2598"}],"wp:attachment":[{"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/media?parent=2595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/categories?post=2595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.slovaklinesmagazin.sk\/cms\/wp-json\/wp\/v2\/tags?post=2595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}