{"id":3054,"date":"2026-08-12T22:06:00","date_gmt":"2026-08-12T19:06:00","guid":{"rendered":"https:\/\/global.tab-tv.com\/sk\/?p=3054"},"modified":"2026-08-13T20:23:04","modified_gmt":"2026-08-13T17:23:04","slug":"co-je-to-chvenie-obrazu-a-ako-sa-ho-zbavit","status":"publish","type":"post","link":"https:\/\/global.tab-tv.com\/sk\/co-je-to-chvenie-obrazu-a-ako-sa-ho-zbavit\/","title":{"rendered":"\u010co je judder a ako sa ho zbavi\u0165?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Judder je probl\u00e9m s pohybom na telev\u00edzore, ktor\u00fd sp\u00f4sobuje, \u017ee pohybuj\u00face sa objekty alebo pohyby kamery vyzeraj\u00fa nerovnomerne, trhane alebo mierne sekane namiesto plynulo. Je obzvl\u00e1\u0161\u0165 vidite\u013en\u00fd pri pomal\u00fdch pohyboch kamery, napr\u00edklad ke\u010f sa kamera plynulo pohybuje ponad krajinu alebo sleduje osobu \u010di objekt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Judder zvy\u010dajne vznik\u00e1 vtedy, ke\u010f sn\u00edmkov\u00e1 frekvencia videa nezodpoved\u00e1 obnovovacej frekvencii telev\u00edzora. V\u00e4\u010d\u0161ina filmov sa napr\u00edklad nat\u00e1\u010da r\u00fdchlos\u0165ou <strong>24 sn\u00edmok za sekundu (24 fps)<\/strong>, zatia\u013e \u010do telev\u00edzory zvy\u010dajne pracuj\u00fa s frekvenciou <strong>60 Hz alebo vy\u0161\u0161ou<\/strong>. Ke\u010f\u017ee tieto frekvencie sa nedaj\u00fa medzi sebou rovnomerne rozdeli\u0165, telev\u00edzor mus\u00ed niektor\u00e9 sn\u00edmky zobrazova\u0165 dlh\u0161ie ne\u017e in\u00e9. Vznik\u00e1 tak nerovnomern\u00fd pohybov\u00fd vzor, v d\u00f4sledku \u010doho obraz vyzer\u00e1, akoby sa pohyboval v mal\u00fdch skokoch namiesto plynul\u00e9ho pohybu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>\u010co je judder na telev\u00edzore?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pozrime sa bli\u017e\u0161ie na to, \u010do <strong>judder<\/strong> znamen\u00e1 a \u010do ho sp\u00f4sobuje. Judder je probl\u00e9m s pohybom, pri ktorom pohybuj\u00face sa objekty alebo pohyby kamery vyzeraj\u00fa nerovnomerne, trhane alebo mierne sekane namiesto plynulo. Je obzvl\u00e1\u0161\u0165 vidite\u013en\u00fd pri pomal\u00fdch pohyboch kamery a vo filmov\u00fdch sc\u00e9nach s rovnomern\u00fdm pohybom.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Judder sa naj\u010dastej\u0161ie objavuje vtedy, ke\u010f sn\u00edmkov\u00e1 frekvencia obsahu nezodpoved\u00e1 obnovovacej frekvencii telev\u00edzora. V\u00e4\u010d\u0161ina filmov sa napr\u00edklad zaznamen\u00e1va r\u00fdchlos\u0165ou <strong>24 sn\u00edmok za sekundu (24 fps)<\/strong>, zatia\u013e \u010do mnoh\u00e9 telev\u00edzory pou\u017e\u00edvaj\u00fa obnovovaciu frekvenciu <strong>60 Hz<\/strong>. Ke\u010f\u017ee 60 nie je rovnomerne delite\u013en\u00e9 \u010d\u00edslom 24, telev\u00edzor nem\u00f4\u017ee zobrazova\u0165 ka\u017ed\u00fd filmov\u00fd sn\u00edmok presne rovnako dlho.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na vyrie\u0161enie tohto probl\u00e9mu telev\u00edzory \u010dasto pou\u017e\u00edvaj\u00fa techniku s n\u00e1zvom <strong>3:2 pulldown<\/strong>. Telev\u00edzor zobraz\u00ed niektor\u00e9 sn\u00edmky trikr\u00e1t a in\u00e9 dvakr\u00e1t, aby previedol film s frekvenciou 24 fps na sign\u00e1l s frekvenciou 60 Hz. Vznik\u00e1 tak nerovnomern\u00fd vzor zobrazovania sn\u00edmok, pri ktorom niektor\u00e9 sn\u00edmky zost\u00e1vaj\u00fa na obrazovke o nie\u010do dlh\u0161ie ne\u017e in\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"653\" src=\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/11\/3-2-pulldown.webp\" alt=\"\" class=\"wp-image-13064\" srcset=\"https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/11\/3-2-pulldown.webp 1024w, https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/11\/3-2-pulldown-300x191.webp 300w, https:\/\/global.tab-tv.com\/sk\/wp-content\/uploads\/sites\/5\/2022\/11\/3-2-pulldown-768x490.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Rozdiel je ve\u013emi mal\u00fd a vo v\u00e4\u010d\u0161ine sc\u00e9n zvy\u010dajne nie je vidite\u013en\u00fd. Po\u010das pomal\u00fdch pohybov kamery alebo ke\u010f sa objekty rovnomerne pohybuj\u00fa po obrazovke v\u0161ak m\u00f4\u017ee by\u0165 nerovnomern\u00e9 \u010dasovanie sn\u00edmok vidite\u013en\u00e9. V\u00fdsledkom je charakteristick\u00e9 trhanie alebo mierne sekanie obrazu, ktor\u00e9 sa ozna\u010duje ako <strong>judder<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Ako sa zbavi\u0165 judderu?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobcovia telev\u00edzorov pou\u017e\u00edvaj\u00fa r\u00f4zne technol\u00f3gie na zn\u00ed\u017eenie alebo odstr\u00e1nenie judderu. Jedn\u00fdm z najjednoduch\u0161\u00edch a naj\u00fa\u010dinnej\u0161\u00edch rie\u0161en\u00ed je <strong>prehr\u00e1vanie 24p<\/strong>, ktor\u00e9 umo\u017e\u0148uje kompatibiln\u00fdm telev\u00edzorom zobrazova\u0165 filmov\u00fd obsah v p\u00f4vodnej frekvencii <strong>24 sn\u00edmok za sekundu<\/strong>, bez jeho konverzie na 60 Hz alebo 120 Hz. Jednoducho povedan\u00e9, telev\u00edzor a jeho <strong>T-CON doska<\/strong> s\u00fa navrhnut\u00e9 tak, aby podporovali priame zobrazovanie 24 sn\u00edmok za sekundu, \u010d\u00edm zachov\u00e1vaj\u00fa p\u00f4vodn\u00e9 \u010dasovanie sn\u00edmok filmu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mnoh\u00e9 modern\u00e9 telev\u00edzory podporuj\u00fa aj <strong>interpol\u00e1ciu pohybu<\/strong>. V tomto pr\u00edpade telev\u00edzor analyzuje po sebe id\u00face sn\u00edmky a vytv\u00e1ra \u010fal\u0161ie medzisn\u00edmky, aby pohyb p\u00f4sobil plynulej\u0161ie. V z\u00e1vislosti od v\u00fdrobcu sa t\u00e1to funkcia m\u00f4\u017ee naz\u00fdva\u0165 <strong>Motion Smoothing, TruMotion, MotionFlow, Auto Motion Plus<\/strong> alebo podobne. Spracovanie vykon\u00e1va obrazov\u00fd procesor telev\u00edzora a jeho cie\u013eom je kompenzova\u0165 nerovnomern\u00fd pohyb a zlep\u0161i\u0165 jeho plynulos\u0165.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Interpol\u00e1cia pohybu m\u00e1 v\u0161ak aj svoje nev\u00fdhody. M\u00f4\u017ee vytv\u00e1ra\u0165 zn\u00e1my <strong>\u201eefekt telenovely\u201c<\/strong>, pri ktorom filmy p\u00f4sobia neprirodzene plynulo a vyzeraj\u00fa inak, ne\u017e boli p\u00f4vodne nato\u010den\u00e9. V niektor\u00fdch situ\u00e1ci\u00e1ch m\u00f4\u017ee tie\u017e vytv\u00e1ra\u0165 obrazov\u00e9 artefakty okolo pohybuj\u00facich sa objektov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Preto mnoh\u00ed div\u00e1ci pri sledovan\u00ed filmov uprednost\u0148uj\u00fa vypnutie interpol\u00e1cie pohybu alebo jej nastavenie na minimum a namiesto toho pou\u017e\u00edvaj\u00fa nat\u00edvnu <strong>podporu 24p<\/strong> telev\u00edzora. T\u00fdm sa zachov\u00e1 p\u00f4vodn\u00fd filmov\u00fd vzh\u013ead a z\u00e1rove\u0148 sa zabr\u00e1ni zbyto\u010dn\u00e9mu spracovaniu obrazu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za zmienku tie\u017e stoj\u00ed, \u017ee judder je na modern\u00fdch telev\u00edzoroch ove\u013ea menej v\u00fdrazn\u00fd. Pokrok v algoritmoch spracovania obrazu a v\u00fdkonnej\u0161ie procesory v\u00fdrazne zlep\u0161ili sp\u00f4sob, ak\u00fdm telev\u00edzory zvl\u00e1daj\u00fa konverziu sn\u00edmkovej frekvencie a pohyb. Zatia\u013e \u010do judder bol pri star\u0161\u00edch telev\u00edzoroch v\u00fdraznej\u0161\u00edm probl\u00e9mom, modern\u00e9 modely ho vo v\u0161eobecnosti zvl\u00e1daj\u00fa ve\u013emi dobre. V s\u00fa\u010dasnosti sa v\u00fdraznej\u0161\u00ed judder \u010dastej\u0161ie vyskytuje pri <strong>lacnej\u0161\u00edch telev\u00edzoroch s menej v\u00fdkonn\u00fdmi alebo zastaran\u00fdmi obrazov\u00fdmi procesormi<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Judder je probl\u00e9m s pohybom na telev\u00edzore, ktor\u00fd sp\u00f4sobuje, \u017ee pohybuj\u00face sa objekty alebo pohyby kamery vyzeraj\u00fa nerovnomerne, trhane alebo mierne sekane namiesto plynulo. Je obzvl\u00e1\u0161\u0165 vidite\u013en\u00fd pri pomal\u00fdch pohyboch kamery, napr\u00edklad ke\u010f sa kamera plynulo pohybuje ponad krajinu alebo sleduje osobu \u010di objekt. Judder zvy\u010dajne vznik\u00e1 vtedy, ke\u010f sn\u00edmkov\u00e1 frekvencia videa nezodpoved\u00e1 obnovovacej frekvencii [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13066,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[86,26],"tags":[21],"class_list":["post-3054","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technologia","category-tv","tag-tv"],"_links":{"self":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/3054","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=3054"}],"version-history":[{"count":2,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/3054\/revisions"}],"predecessor-version":[{"id":13065,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/posts\/3054\/revisions\/13065"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media\/13066"}],"wp:attachment":[{"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/media?parent=3054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/categories?post=3054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/global.tab-tv.com\/sk\/wp-json\/wp\/v2\/tags?post=3054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}