{"id":1485,"date":"2022-07-31T23:32:53","date_gmt":"2022-07-31T23:32:53","guid":{"rendered":"https:\/\/global.tab-tv.com\/sk\/?p=1485"},"modified":"2022-07-31T23:32:55","modified_gmt":"2022-07-31T23:32:55","slug":"stvorstupnova-redukcia-sumu-televizory-lg-co-je-to-vysvetlene","status":"publish","type":"post","link":"https:\/\/global.tab-tv.com\/sk\/stvorstupnova-redukcia-sumu-televizory-lg-co-je-to-vysvetlene\/","title":{"rendered":"\u0160tvorstup\u0148ov\u00e1 redukcia \u0161umu Telev\u00edzory LG \u010co je to vysvetlen\u00e9"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\"><a><\/a><strong>Vysvetlenie prostriedku redukcie \u0161umu telev\u00edzora LG<\/strong><\/h1>\n\n\n\n<p>Spolo\u010dnos\u0165 LG TV ozn\u00e1mila \u0161tvorstup\u0148ov\u00fa technol\u00f3giu redukcie hluku. Pod\u013ea logiky priemern\u00e9ho \u010dloveka je redukcia \u0161umu dobr\u00e1 a 4 stupne s\u00fa ve\u013emi dobr\u00e9. Spolo\u010dnos\u0165 LG vysvet\u013euje tieto 4 stupne redukcie hluku takto.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>1 stupe\u0148 redukcie \u0161umu &#8211; redukcia priestorov\u00e9ho \u0161umu.<\/strong><\/li><li><strong>2 \u00darove\u0148 zn\u00ed\u017eenia hluku &#8211; do\u010dasn\u00e9 zn\u00ed\u017eenie hluku<\/strong><\/li><li><strong>3 \u00farove\u0148 redukcie \u0161umu &#8211; redukcia kont\u00far obrazu<\/strong><\/li><li><strong>4 f\u00e1za redukcie \u0161umu &#8211; kone\u010dn\u00e1 redukcia obrysu obrazu.<\/strong><\/li><\/ul>\n\n\n\n<p>Teraz nieko\u013eko v\u0161eobecn\u00fdch inform\u00e1ci\u00ed o \u0161ume v digit\u00e1lnom videu. Mali by ste vedie\u0165, \u017ee v digit\u00e1lnom videu neexistuje \u0161um, jednoducho neexistuje. Pojem \u0161um vo videu poch\u00e1dza z anal\u00f3govej telev\u00edzie, ktor\u00e1 bola skuto\u010dne vystaven\u00e1 vonkaj\u0161\u00edm vplyvom a video vytv\u00e1ralo \u0161um (\u0161um na obrazovke). Pri zobrazovan\u00ed digit\u00e1lneho videa v dne\u0161n\u00fdch telev\u00edzoroch \u017eiadny \u0161um neexistuje. O akom druhu \u0161umu teda spolo\u010dnos\u0165 LG hovor\u00ed? Je to ve\u013emi jednoduch\u00e9, ka\u017ed\u00fd je zvyknut\u00fd na to, \u017ee ak m\u00e1 obrazovka zl\u00fa kvalitu obrazu, m\u00f4\u017ee za to \u0161um. Preto je pojem \u0161um vo videu zrozumite\u013enej\u0161\u00ed ako in\u00e9 n\u00e1zvy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>Telev\u00edzor s redukciou \u0161umu<\/strong><\/h2>\n\n\n\n<p>Pri digitaliz\u00e1cii videa plat\u00ed, \u017ee \u010d\u00edm silnej\u0161ie je video komprimovan\u00e9, na komprim\u00e1ciu inform\u00e1ci\u00ed sa pou\u017e\u00edvaj\u00fa \u0161peci\u00e1lne kodeky, t\u00fdm r\u00fdchlej\u0161ie sa video m\u00f4\u017ee pren\u00e1\u0161a\u0165. V\u00fdsledkom je, \u017ee \u010d\u00edm viac je s\u00fabor komprimovan\u00fd, t\u00fdm viac obrazov\u00fdch artefaktov sa m\u00f4\u017ee objavi\u0165 na obrazovke. Najv\u00fdraznej\u0161ie s\u00fa chyby k\u00f3dovania, nekonzistentn\u00e9 farebn\u00e9 prechody a &#8220;duchy&#8221; okolo obrazov\u00fdch objektov. \u0160tvorkrokov\u00e1 redukcia \u0161umu opravuje chyby, ktor\u00e9 vznikaj\u00fa po\u010das k\u00f3dovania videa. Na opravu ch\u00fdb, ktor\u00e9 vznikaj\u00fa po\u010das kompresie d\u00e1t, bol vyvinut\u00fd \u0161peci\u00e1lny vstavan\u00fd softv\u00e9r, ktor\u00fd sprac\u00fava video pred jeho zobrazen\u00edm na obrazovke. Artefakty, ktor\u00e9 vznikaj\u00fa po\u010das kompresie, s\u00fa spravidla trval\u00e9, preto m\u00f4\u017eete vyvin\u00fa\u0165 algoritmus na opravu be\u017en\u00fdch ch\u00fdb. Telev\u00edzor m\u00e1 \u010fal\u0161\u00ed program na spracovanie videa, ktor\u00fd m\u00e1 \u0161peci\u00e1lny algoritmus na zn\u00ed\u017eenie artefaktov obrazu. Program m\u00f4\u017ee ma\u0165 nieko\u013eko stup\u0148ov korekcie obrazu, tu v tomto pr\u00edpade LG znamen\u00e1, \u017ee obraz pred zobrazen\u00edm na obrazovke sa \u010falej spracuje v programe a s\u00fa stanoven\u00e9 \u0161tyri stupne spracovania videa.<\/p>\n\n\n\n<p>Mali by ste vedie\u0165, \u017ee kvalita digit\u00e1lneho videa ve\u013emi z\u00e1vis\u00ed od p\u00f4vodn\u00e9ho s\u00faboru, ktor\u00fd bol komprimovan\u00fd na prenos do telev\u00edzora. V\u00fdvoj\u00e1ri kodekov neust\u00e1le zlep\u0161uj\u00fa kvalitu kompresie videa a nov\u00e9 technol\u00f3gie prenosu digit\u00e1lneho videa a vysok\u00e9 r\u00fdchlosti internetu umo\u017e\u0148uj\u00fa prenos menej komprimovan\u00fdch s\u00faborov, \u010do m\u00e1 dobr\u00fd vplyv na kvalitu videa.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"330\" height=\"207\" src=\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/07\/Quad-Step-Noise-Reduction.jpg\" alt=\"\" class=\"wp-image-1486\" srcset=\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/07\/Quad-Step-Noise-Reduction.jpg 330w, https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/07\/Quad-Step-Noise-Reduction-300x188.jpg 300w\" sizes=\"auto, (max-width: 330px) 100vw, 330px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a><strong>Ako funguje \u0161tvorstup\u0148ov\u00e1 redukcia \u0161umu v telev\u00edzore LG<\/strong><\/h2>\n\n\n\n<p>Telev\u00edzory LG s v\u00fdkonnej\u0161\u00edmi procesormi, ako s\u00fa A7, A9, s\u00fa telev\u00edzory OLED a s\u00e9rie NanoCell. Bol vyvinut\u00fd pokro\u010dil\u00fd program na opravu typick\u00fdch ch\u00fdb, ktor\u00e9 sa vyskytuj\u00fa po\u010das k\u00f3dovania videa. Pri zobrazovan\u00ed videa softv\u00e9r analyzuje mo\u017en\u00e9 chyby a ak sa n\u00e1jdu, obraz sa oprav\u00ed. Funkciu Quad Step Noise Reduction m\u00f4\u017eete zapn\u00fa\u0165 alebo vypn\u00fa\u0165 v nastaveniach telev\u00edzora. Quad Step Noise Reduction je nepou\u017eite\u013en\u00e1 pri sledovan\u00ed vysokokvalitn\u00e9ho videa k\u00f3dovan\u00e9ho modern\u00fdmi kodekmi s vysokokvalitnou digitaliz\u00e1ciou videa.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vysvetlenie prostriedku redukcie \u0161umu telev\u00edzora LG Spolo\u010dnos\u0165 LG TV ozn\u00e1mila \u0161tvorstup\u0148ov\u00fa technol\u00f3giu redukcie hluku. Pod\u013ea logiky priemern\u00e9ho \u010dloveka je redukcia \u0161umu dobr\u00e1 a 4 stupne s\u00fa ve\u013emi dobr\u00e9. Spolo\u010dnos\u0165 LG vysvet\u013euje tieto 4 stupne redukcie hluku takto. 1 stupe\u0148 redukcie \u0161umu &#8211; redukcia priestorov\u00e9ho \u0161umu. 2 \u00darove\u0148 zn\u00ed\u017eenia hluku &#8211; do\u010dasn\u00e9 zn\u00ed\u017eenie hluku 3 \u00farove\u0148 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1487,"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":[86],"tags":[98],"class_list":{"0":"post-1485","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-technologia","8":"tag-lg-tv"},"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/1485","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=1485"}],"version-history":[{"count":1,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/1485\/revisions"}],"predecessor-version":[{"id":1488,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/1485\/revisions\/1488"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/1487"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=1485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=1485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=1485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}