{"id":6503,"date":"2023-05-06T01:27:42","date_gmt":"2023-05-05T22:27:42","guid":{"rendered":"https:\/\/global.tab-tv.com\/sk\/?p=6503"},"modified":"2023-05-06T01:27:44","modified_gmt":"2023-05-05T22:27:44","slug":"index-kvality-index-dynamickej-sceny-v-televizoroch-led","status":"publish","type":"post","link":"https:\/\/global.tab-tv.com\/sk\/index-kvality-index-dynamickej-sceny-v-televizoroch-led\/","title":{"rendered":"Index kvality, index dynamickej sc\u00e9ny v telev\u00edzoroch LED"},"content":{"rendered":"\n<p>Zv\u00e1\u017ete, ak\u00e9 s\u00fa ak\u010dn\u00e9 sc\u00e9ny indexu a ako to technicky funguje v telev\u00edzore. Tento opis je vhodn\u00fd pre indexov\u00e9 ak\u010dn\u00e9 sc\u00e9ny ak\u00e9hoko\u013evek v\u00fdrobcu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Akt\u00edvny pohyb a rozl\u00ed\u0161enie (AMR): <\/strong>TV Toshiba<\/li>\n\n\n\n<li><strong>Clear motion rate (CMR), Picture Quality Index (PQI): <\/strong>TV Samsung<\/li>\n\n\n\n<li><strong>Motion Clarity Index (MCI), Tru Motion: <\/strong>TV LG<\/li>\n\n\n\n<li><strong>Motionflow XR: <\/strong>TV Sony<\/li>\n\n\n\n<li><strong>Skenovanie podsvietenia (BLS): <\/strong>TV Panasonic<\/li>\n\n\n\n<li><strong>Clear Motion Index (CMI): <\/strong>TV Thomson<\/li>\n\n\n\n<li><strong>Perfektn\u00e1 r\u00fdchlos\u0165 pohybu (PMR): <\/strong>TV Philips<\/li>\n\n\n\n<li><strong>Podpo\u013eov\u00fd pohyb v plazme: <\/strong>Samsung<\/li>\n<\/ul>\n\n\n\n<p>Tento \u010dl\u00e1nok bol nap\u00edsan\u00fd v roku 2015; rozhodol som sa ho aktualizova\u0165 a pripomen\u00fa\u0165, ako v\u00fdrobcovia telev\u00edzorov propagovali svoje telev\u00edzory vym\u00fd\u0161\u013ean\u00edm r\u00f4znych indexov\u00fdch sc\u00e9n kvality obrazu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>Hist\u00f3ria dynamick\u00e9ho indexu sc\u00e9n v telev\u00edzii<\/strong><\/h2>\n\n\n\n<p>Po n\u00e1stupe digit\u00e1lnej telev\u00edzie bolo viac mo\u017enost\u00ed na spr\u00e1vu obsahu, preto\u017ee ho u\u017e spracov\u00e1val procesor telev\u00edzora. To umo\u017enilo vyvin\u00fa\u0165 r\u00f4zne indexy, ktor\u00e9 mali telev\u00edzorom ur\u010di\u0165 poradie z h\u013eadiska kvality obrazu. V praxi v\u0161ak i\u0161lo len o marketing, pri\u010dom indexy kvality obrazu alebo dynamick\u00fdch sc\u00e9n niektor\u00fdch v\u00fdrobcov dosahovali nepochopite\u013en\u00e9 \u010d\u00edsla v desiatkach tis\u00edc. Aj na ozna\u010denie hertzov sa spo\u010diatku pou\u017e\u00edvali, mohli ste n\u00e1js\u0165 telev\u00edzor s indexom 10000 Hz, \u010do bolo absol\u00fatne nemo\u017en\u00e9.<\/p>\n\n\n\n<p>Potom \u013eudia za\u010dali \u017ealova\u0165 v\u00fdrobcov telev\u00edzorov, a ke\u010f\u017ee t\u00ed nevedeli vysvetli\u0165, \u010do je to Hertzovo \u010d\u00edslo, ve\u013emi r\u00fdchlo zmizli a jedin\u00e9 \u010d\u00edsla, ktor\u00e9 m\u00e1me, s\u00fa tie bez vysvetlenia, \u010do znamenaj\u00fa. Vrchol v\u0161etk\u00fdch indexov bol v roku 2013, potom boli p\u00f4vodn\u00e9 indexy niektor\u00fdch v\u00fdrobcov telev\u00edzorov nahraden\u00e9 nov\u00fdmi indexmi. Napr\u00edklad spolo\u010dnos\u0165 Samsung za\u010dala namiesto <strong>indexu Clear motion rate <\/strong>(CMR) pou\u017e\u00edva\u0165 <strong>index kvality obrazu. <\/strong>Spolo\u010dnos\u0165 LG p\u00f4vodne pou\u017e\u00edvala <strong>index Motion Clarity Index <\/strong>(MCI), ktor\u00fd nesk\u00f4r nahradil <strong>Tru Motion.<\/strong><\/p>\n\n\n\n<p>Pozrime sa na ak\u010dn\u00e9 sc\u00e9ny s indexom a na to, ako technicky funguj\u00fa na telev\u00edzore. Tento opis sa vz\u0165ahuje na ak\u00fdko\u013evek telev\u00edzor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>\u010co znamen\u00e1 dynamick\u00fd index sc\u00e9ny v telev\u00edzoroch<\/strong><\/h2>\n\n\n\n<p>Ako n\u00e1m povedali v\u00fdrobcovia telev\u00edzorov v rokoch 2011-2015. N\u00e1\u0161 telev\u00edzor m\u00e1 technol\u00f3giu na zlep\u0161enie kvality obrazu v dynamick\u00fdch sc\u00e9nach. Telev\u00edzor vytv\u00e1ra medzisn\u00edmky medzi existuj\u00facimi obrazov\u00fdmi sn\u00edmkami, \u010d\u00edm zvy\u0161uje po\u010det sn\u00edmok. V\u010faka tomu bude obraz na telev\u00edznej obrazovke vyzera\u0165 plynulej\u0161ie. \u010c\u00edm vy\u0161\u0161\u00ed je index, t\u00fdm kvalitnej\u0161ie je spracovanie obrazu telev\u00edzora. Nikto nevie, ako vypo\u010d\u00edta\u0165 samotn\u00fd index; jednoducho je.<\/p>\n\n\n\n<p><strong><em>Uk\u00e1zalo sa v\u0161ak, \u017ee telev\u00edzne prij\u00edma\u010de nevytv\u00e1raj\u00fa medzisn\u00edmky; nemaj\u00fa t\u00fato technick\u00fa mo\u017enos\u0165, nedostato\u010dn\u00e9 prostriedky procesora a pam\u00e4te.<\/em><\/strong><\/p>\n\n\n\n<p>Ako povedali v\u00fdrobcovia telev\u00edzorov o dynamickom indexe sc\u00e9ny po roku 2015. V\u010faka zabudovan\u00e9mu softv\u00e9ru mo\u017eno p\u00f4vodn\u00fd obraz, ktor\u00fd m\u00e1 n\u00edzku frekvenciu sn\u00edmok, zobrazi\u0165 so zv\u00fd\u0161enou frekvenciou pre toto pou\u017eitie duplicitn\u00fdch sn\u00edmok a vlo\u017eenie \u010dierneho r\u00e1mu. Vizu\u00e1lne m\u00f4\u017eete vidie\u0165 obraz primeran\u00fd obrazu s vy\u0161\u0161ou frekvenciou sn\u00edmok.<\/p>\n\n\n\n<p>Ako to mo\u017eno poveda\u0165 pre pochopenie. Ak m\u00e1 p\u00f4vodn\u00fd obraz ni\u017e\u0161iu sn\u00edmkov\u00fa frekvenciu, ako dok\u00e1\u017ee zobrazi\u0165 telev\u00edzor, napr\u00edklad telev\u00edzor dok\u00e1\u017ee zobrazi\u0165 60 sn\u00edmok za sekundu, ale obraz odoslan\u00fd do telev\u00edzora m\u00e1 sn\u00edmkov\u00fa frekvenciu 30. V tomto pr\u00edpade re\u017eim dynamick\u00e9ho vylep\u0161enia sc\u00e9ny funguje nasledovne. Sn\u00edmky sa za\u010dn\u00fa prekr\u00fdva\u0165 a telev\u00edzor zobraz\u00ed 60 sn\u00edmok namiesto p\u00f4vodn\u00fdch 30. Ak m\u00e1 telev\u00edzor displej, ktor\u00fd podporuje 120 sn\u00edmok za sekundu, medzi sn\u00edmky sa vlo\u017eia dodato\u010dn\u00e9 \u010dierne r\u00e1m\u010deky, aby bol obraz jasnej\u0161\u00ed.<\/p>\n\n\n\n<p><strong>Ak telev\u00edzor z\u00edskava video v p\u00f4vodnej kvalite s dostato\u010dnou sn\u00edmkovou frekvenciou, tieto technol\u00f3gie s\u00fa zbyto\u010dn\u00e9 a nefunguj\u00fa.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>Nev\u00fdhody v\u0161etk\u00fdch technol\u00f3gi\u00ed, ktor\u00e9 zlep\u0161uj\u00fa dynamick\u00fd obsah<\/strong><\/h2>\n\n\n\n<p>Najv\u00fdznamnej\u0161ou nev\u00fdhodou je efekt telenovely. Ten nast\u00e1va vtedy, ke\u010f sa obraz stane neprirodzene hladk\u00fdm v d\u00f4sledku zdvojen\u00fdch sn\u00edmok. \u017dia\u013e, s t\u00fdm sa ned\u00e1 ni\u010d robi\u0165; ak chcete z\u00edska\u0165 norm\u00e1lne video, pozrite si ho v origin\u00e1li, zapnite program na zlep\u0161enie a z\u00edskajte mydlov\u00fa operu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>Indexy dynamick\u00fdch sc\u00e9n v t\u00fdchto d\u0148och<\/strong><\/h2>\n\n\n\n<p>Teraz sa takmer prestali pou\u017e\u00edva\u0165 r\u00f4zne indexy. Spojen\u00e9 \u0161t\u00e1ty naposledy pou\u017e\u00edvali indexy v roku 2017, ale Eur\u00f3pa ich takmer prestala pou\u017e\u00edva\u0165 v roku 2021. S\u00fa zastaran\u00e9 a neodr\u00e1\u017eaj\u00fa \u017eiadne jasn\u00e9 parametre. Vzh\u013eadom na n\u00e1rast obsahu s p\u00f4vodne vysok\u00fdmi parametrami obrazu, ako je napr\u00edklad sn\u00edmkov\u00e1 frekvencia, s\u00fa programy na zlep\u0161enie kvality dynamick\u00fdch sc\u00e9n jednoducho zbyto\u010dn\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Soap Opera Effect in Slow Motion\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/B_dE6HPIAJM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Zv\u00e1\u017ete, ak\u00e9 s\u00fa ak\u010dn\u00e9 sc\u00e9ny indexu a ako to technicky funguje v telev\u00edzore. Tento opis je vhodn\u00fd pre indexov\u00e9 ak\u010dn\u00e9 sc\u00e9ny ak\u00e9hoko\u013evek v\u00fdrobcu. Tento \u010dl\u00e1nok bol nap\u00edsan\u00fd v roku 2015; rozhodol som sa ho aktualizova\u0165 a pripomen\u00fa\u0165, ako v\u00fdrobcovia telev\u00edzorov propagovali svoje telev\u00edzory vym\u00fd\u0161\u013ean\u00edm r\u00f4znych indexov\u00fdch sc\u00e9n kvality obrazu. Hist\u00f3ria dynamick\u00e9ho indexu sc\u00e9n v telev\u00edzii [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[26],"tags":[87],"class_list":{"0":"post-6503","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tv","8":"tag-technologia"},"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/6503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/comments?post=6503"}],"version-history":[{"count":1,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/6503\/revisions"}],"predecessor-version":[{"id":6506,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/6503\/revisions\/6506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/6504"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=6503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=6503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=6503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}