K rozmazaniu doch\u00e1dza, ke\u010f sa objekt na obrazovke pohybuje. Hlavnou pr\u00ed\u010dinou nie je ani tak reak\u010dn\u00fd \u010das pixelov na zapnutie a vypnutie, ale zachovanie zvy\u0161kov\u00fdch obrazov. Ke\u010f sa objekt pohybuje, jeho predch\u00e1dzaj\u00faci obraz sa na chv\u00ed\u013eu oneskor\u00ed a na inom mieste obrazovky sa objav\u00ed nov\u00fd sn\u00edmok. Modern\u00e9 displeje OLED tento probl\u00e9m v\u00fdrazne obmedzili, tak\u017ee maj\u00fa minim\u00e1lny reak\u010dn\u00fd \u010das.<\/p>\n\n\n\n
\u010eal\u0161\u00edm faktorom, ktor\u00fd k tomu prispieva, je samotn\u00fd \u013eudsk\u00fd zrak. Aj po tom, ako obraz zmizne z obrazovky, zostane na chv\u00ed\u013eu na sietnici, \u010d\u00edm vznikne mal\u00e9, ale vidite\u013en\u00e9 rozmazanie. Hoci to nie je kritick\u00e9, pre niektor\u00fdch div\u00e1kov to m\u00f4\u017ee by\u0165 nepr\u00edjemn\u00e9.<\/p>\n\n\n\n
Existuj\u00fa pokusy o meranie skuto\u010dn\u00e9ho rozmazania pohybu sp\u00f4soben\u00e9ho obmedzeniami hardv\u00e9ru. Rob\u00ed sa to tak, \u017ee sa sleduje pohybuj\u00faci sa objekt na obrazovke telev\u00edzora alebo monitora pomocou synchronizovanej kamery, ktor\u00e1 sa pohybuje synchr\u00f3nne s obrazom a zachyt\u00e1va obraz s obnovovacou frekvenciou obrazovky. Dosiahnutie presnej synchroniz\u00e1cie medzi obnovovacou frekvenciou obrazovky a r\u00fdchlos\u0165ou uz\u00e1vierky kamery si v\u0161ak vy\u017eaduje profesion\u00e1lne vybavenie, tak\u017ee presn\u00e9 merania s\u00fa pre v\u00e4\u010d\u0161inu pou\u017e\u00edvate\u013eov \u0165a\u017eko dosiahnute\u013en\u00e9.<\/p>\n\n\n\n Existuje nieko\u013eko met\u00f3d na minimaliz\u00e1ciu rozmazania obrazu na telev\u00edzore, hoci ich \u00fa\u010dinnos\u0165 z\u00e1vis\u00ed od technick\u00fdch mo\u017enost\u00ed telev\u00edzora. V\u0161eobecne plat\u00ed, \u017ee kvalitnej\u0161ie telev\u00edzory s vy\u0161\u0161ou obnovovacou frekvenciou zvl\u00e1daj\u00fa rozmazanie obrazu lep\u0161ie. Medzi najbe\u017enej\u0161ie techniky patria:<\/p>\n\n\n\n Skenovanie podsvietenia (LED telev\u00edzory) – T\u00e1to met\u00f3da zni\u017euje rozmazanie obrazu vyp\u00ednan\u00edm podsvietenia medzi sn\u00edmkami. \u010eal\u0161\u00edm pr\u00edstupom je interpol\u00e1cia sn\u00edmok, pri ktorej telev\u00edzor generuje dodato\u010dn\u00e9 sn\u00edmky na vyhladenie pohybu. To v\u0161ak m\u00f4\u017ee vies\u0165 k \u201etelenovelov\u00e9mu efektu\u201c, ktor\u00fd niektor\u00ed div\u00e1ci pova\u017euj\u00fa za neprirodzen\u00fd. T\u00e1to met\u00f3da je u\u017eito\u010dn\u00e1 len vtedy, ke\u010f m\u00e1 zdrojov\u00fd obsah menej sn\u00edmok, ako umo\u017e\u0148uje obnovovacia frekvencia telev\u00edzora.<\/p>\n\n\n\n Ak napr\u00edklad video be\u017e\u00ed r\u00fdchlos\u0165ou 60 sn\u00edmok za sekundu (fps), ale telev\u00edzor podporuje 120 fps, medzi aktu\u00e1lne sn\u00edmky sa m\u00f4\u017eu vlo\u017ei\u0165 \u010dierne sn\u00edmky. V\u00fdsledkom je 60 skuto\u010dn\u00fdch sn\u00edmok a 60 \u010diernych sn\u00edmok za sekundu, \u010do \u00fa\u010dinne zni\u017euje vn\u00edmanie rozmazania pohybu.<\/p>\n","protected":false},"excerpt":{"rendered":" Rozmazanie pohybu je parameter, ktor\u00fd v\u00fdrobcovia telev\u00edzorov neuv\u00e1dzaj\u00fa, preto\u017ee je prakticky nemo\u017en\u00e9 ho zmera\u0165. Jej pr\u00edtomnos\u0165 ovplyv\u0148uj\u00fa dva k\u013e\u00fa\u010dov\u00e9 faktory. Prv\u00fdm je kvalita displeja: kvalitnej\u0161ie obrazovky s lep\u0161ou obnovovacou frekvenciou maj\u00fa tendenciu produkova\u0165 menej rozmazania. Druh\u00fdm faktorom je zotrva\u010dnos\u0165 \u013eudsk\u00e9ho videnia, ktor\u00e1 sa u ka\u017ed\u00e9ho \u010dloveka l\u00ed\u0161i a ned\u00e1 sa kvantifikova\u0165. \u010co sp\u00f4sobuje rozmazanie obrazu? […]<\/p>\n","protected":false},"author":1,"featured_media":12500,"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":[87,21],"class_list":{"0":"post-12497","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tv","8":"tag-technologia","9":"tag-tv"},"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12497","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=12497"}],"version-history":[{"count":2,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12497\/revisions"}],"predecessor-version":[{"id":12502,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/12497\/revisions\/12502"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/12500"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=12497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=12497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=12497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2025\/03\/Motion-blur-on-TV-1024x545.webp\")
<\/figure>\n\n\n\nAko zn\u00ed\u017ei\u0165 rozmazanie obrazu na telev\u00edznej obrazovke<\/strong><\/h2>\n\n\n\n
Vkladanie \u010diernych sn\u00edmok (v\u0161etky typy telev\u00edzorov) – Ide o vkladanie \u010diernych sn\u00edmok medzi aktu\u00e1lne sn\u00edmky. V telev\u00edzoroch LED sa to dosahuje kr\u00e1tkym vypnut\u00edm podsvietenia, zatia\u013e \u010do telev\u00edzory OLED zobrazuj\u00fa skuto\u010dn\u00e9 \u010dierne sn\u00edmky.
Tieto techniky funguj\u00fa tak, \u017ee ovplyv\u0148uj\u00fa \u013eudsk\u00e9 vn\u00edmanie. R\u00fdchlej\u0161\u00edm odstr\u00e1nen\u00edm zvy\u0161kov\u00fdch obrazov pom\u00e1haj\u00fa oku r\u00fdchlej\u0161ie sa prisp\u00f4sobi\u0165 zmen\u00e1m pohybu, \u010d\u00edm sa rozmazanie st\u00e1va menej vidite\u013en\u00fdm.<\/p>\n\n\n\n