{"id":109,"date":"2026-08-10T16:02:00","date_gmt":"2026-08-10T14:02:00","guid":{"rendered":"https:\/\/skyvision.sk\/news\/?p=109"},"modified":"2026-08-11T09:37:44","modified_gmt":"2026-08-11T07:37:44","slug":"preco-nie-je-kazda-4k-kamera-rovnaka","status":"publish","type":"post","link":"https:\/\/skyvision.sk\/news\/preco-nie-je-kazda-4k-kamera-rovnaka\/","title":{"rendered":"Pre\u010do nie je ka\u017ed\u00e1 4K kamera rovnak\u00e1 a \u010do rozhoduje o kvalite obrazu v noci?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>Megapixely s\u00fa iba za\u010diatok. Pou\u017eite\u013en\u00fd d\u00f4kaz vznik\u00e1 kombin\u00e1ciou optiky, svetla, nastavenia a spr\u00e1vneho n\u00e1vrhu.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1-1024x683.png\" alt=\"\" class=\"wp-image-111\" srcset=\"https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1-1024x683.png 1024w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1-300x200.png 300w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1-768x512.png 768w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1-1200x800.png 1200w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-1.png 1536w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Rovnak\u00fd \u00fadaj o rozl\u00ed\u0161en\u00ed e\u0161te neznamen\u00e1 rovnak\u00fd v\u00fdsledok. Pri pohybe, protisvetle a slabom osvetlen\u00ed sa rozdiel medzi kamerami uk\u00e1\u017ee naplno.<\/em><\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">Dve kamery m\u00f4\u017eu ma\u0165 na krabici rovnak\u00fd \u00fadaj 4K, rovnak\u00fd po\u010det megapixelov a podobn\u00fd uhol z\u00e1beru. Cez de\u0148 m\u00f4\u017eu obe p\u00f4sobi\u0165 presved\u010divo. Skuto\u010dn\u00fd rozdiel sa v\u0161ak \u010dasto uk\u00e1\u017ee a\u017e ve\u010der, pri da\u017edi, protisvetle alebo vo chv\u00edli, ke\u010f sa \u010dlovek pohne. Jedna kamera zachyt\u00ed tv\u00e1r, oble\u010denie a smer pohybu. Druh\u00e1 vytvor\u00ed ve\u013ek\u00fd s\u00fabor pln\u00fd \u0161umu a rozmazan\u00fdch \u0161kv\u0155n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pre z\u00e1kazn\u00edka preto nie je najd\u00f4le\u017eitej\u0161ia ot\u00e1zka, ko\u013eko pixelov kamera m\u00e1. D\u00f4le\u017eitej\u0161ie je, \u010di poskytne pou\u017eite\u013en\u00fa inform\u00e1ciu presne v situ\u00e1cii, pre ktor\u00fa bola nain\u0161talovan\u00e1. Pekn\u00fd \u017eiv\u00fd n\u00e1h\u013ead na monitore e\u0161te nie je d\u00f4kazom, \u017ee bude rovnako dobr\u00fd aj ulo\u017een\u00fd z\u00e1znam pohybuj\u00facej sa osoby.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>R\u00ddCHLA ODPOVE\u010e<\/strong> <strong>4K ozna\u010duje najm\u00e4 po\u010det obrazov\u00fdch bodov. O v\u00fdsledku v noci rozhoduje cel\u00fd re\u0165azec: mno\u017estvo svetla, sn\u00edma\u010d, objekt\u00edv, expoz\u00edcia, spracovanie obrazu, kompresia, uhol z\u00e1beru, mont\u00e1\u017e a odborn\u00e9 nastavenie.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">4K hovor\u00ed o ve\u013ekosti obrazu, nie o jeho d\u00f4kaznej hodnote<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Vy\u0161\u0161ie rozl\u00ed\u0161enie m\u00f4\u017ee pom\u00f4c\u0165 zachyti\u0165 viac detailov, ale iba vtedy, ak ich kamera dok\u00e1\u017ee skuto\u010dne vytvori\u0165. Ak je sc\u00e9na tmav\u00e1, objekt sa po\u010das expoz\u00edcie pohne alebo je obraz pr\u00edli\u0161 agres\u00edvne od\u0161umen\u00fd a skomprimovan\u00fd, vy\u0161\u0161\u00ed po\u010det pixelov iba presnej\u0161ie zaznamen\u00e1 rozmazanie. Preto m\u00f4\u017ee kvalitne navrhnut\u00e1 kamera s ni\u017e\u0161\u00edm rozl\u00ed\u0161en\u00edm v n\u00e1ro\u010dnej sc\u00e9ne poskytn\u00fa\u0165 pou\u017eite\u013enej\u0161\u00ed v\u00fdsledok ne\u017e lacn\u00fd model s v\u00e4\u010d\u0161\u00edm \u010d\u00edslom v technickej tabu\u013eke.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pri bezpe\u010dnostnom syst\u00e9me treba najsk\u00f4r ur\u010di\u0165 \u00falohu konkr\u00e9tnej kamery. In\u00fd z\u00e1ber sta\u010d\u00ed na zistenie, \u017ee niekto vst\u00fapil na pozemok, a in\u00fd je potrebn\u00fd na rozpoznanie tv\u00e1re, farby oble\u010denia alebo eviden\u010dn\u00e9ho \u010d\u00edsla vozidla. Bez tohto cie\u013ea sa ned\u00e1 rozumne pos\u00fadi\u0165 ani vhodn\u00e9 rozl\u00ed\u0161enie.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Faktor<\/strong><\/td><td><strong>\u010co ovplyv\u0148uje<\/strong><\/td><td><strong>Typick\u00fd probl\u00e9m pri zlom n\u00e1vrhu<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Rozl\u00ed\u0161enie<\/td><td>Mno\u017estvo obrazov\u00fdch bodov<\/td><td>Ve\u013ea pixelov, ale m\u00e1lo skuto\u010dn\u00fdch detailov<\/td><\/tr><tr><td>Sn\u00edma\u010d a objekt\u00edv<\/td><td>Ko\u013eko svetla kamera vyu\u017eije<\/td><td>\u0160um, strata farieb a m\u00e4kk\u00fd obraz<\/td><\/tr><tr><td>Expozi\u010dn\u00fd \u010das<\/td><td>Ostros\u0165 pohybuj\u00facej sa osoby<\/td><td>Tv\u00e1r alebo \u0160PZ sa pri pohybe rozma\u017ee<\/td><\/tr><tr><td>Zisk a od\u0161umenie<\/td><td>Jas obrazu a \u00farove\u0148 \u0161umu<\/td><td>Voskov\u00fd obraz, mizn\u00face jemn\u00e9 detaily<\/td><\/tr><tr><td>WDR<\/td><td>Detaily v svetl\u00fdch a tmav\u00fdch \u010dastiach<\/td><td>Prep\u00e1len\u00e1 lampa alebo \u010dierna tv\u00e1r<\/td><\/tr><tr><td>IR alebo biele svetlo<\/td><td>Obraz v tme a zachovanie farieb<\/td><td>Odrazy, hmla, hmyz alebo ru\u0161enie susedov<\/td><\/tr><tr><td>Uhol a vzdialenos\u0165<\/td><td>Ko\u013eko pixelov pripadne na osobu<\/td><td>\u0160irok\u00fd preh\u013ead bez identifik\u00e1cie<\/td><\/tr><tr><td>Kompresia a d\u00e1tov\u00fd tok<\/td><td>Kvalita ulo\u017een\u00e9ho z\u00e1znamu<\/td><td>\u017div\u00fd obraz je lep\u0161\u00ed ne\u017e export incidentu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">\u010co sa s obrazom deje po zotmen\u00ed<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Ke\u010f ubudne svetlo, kamera mus\u00ed urobi\u0165 kompromis. M\u00f4\u017ee pred\u013a\u017ei\u0165 expozi\u010dn\u00fd \u010das, zv\u00fd\u0161i\u0165 elektronick\u00fd zisk, otvori\u0165 clonu, zapn\u00fa\u0165 infra\u010derven\u00e9 prisvietenie alebo vyu\u017ei\u0165 okolit\u00e9 osvetlenie. Ka\u017ed\u00e1 mo\u017enos\u0165 m\u00e1 v\u00fdhody aj ved\u013eaj\u0161ie \u00fa\u010dinky. Dlh\u0161ia expoz\u00edcia zosvetl\u00ed sc\u00e9nu, ale zvy\u0161uje riziko rozmazania pohybu. Vy\u0161\u0161\u00ed zisk zosiln\u00ed sign\u00e1l, ale spolu s n\u00edm aj obrazov\u00fd \u0161um.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160um n\u00e1sledne za\u0165a\u017euje kompresiu. Rekord\u00e9r mus\u00ed uklada\u0165 mno\u017estvo drobn\u00fdch zmien, ktor\u00e9 nie s\u00fa skuto\u010dn\u00fdm detailom. Ak sa syst\u00e9m sna\u017e\u00ed d\u00e1tov\u00fd tok v\u00fdrazne zn\u00ed\u017ei\u0165, m\u00f4\u017ee za\u010da\u0165 vyhladzova\u0165 kont\u00fary tv\u00e1re, text\u00faru oble\u010denia alebo znaky na vozidle. V\u00fdsledok m\u00f4\u017ee vyzera\u0165 jasne, ale forenzne je slab\u00fd.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>NAJ\u010cASTEJ\u0160\u00cd OMYL<\/strong> <strong>Zastaven\u00fd \u010dlovek m\u00f4\u017ee by\u0165 na no\u010dnom n\u00e1h\u013eade ostr\u00fd. A\u017e sk\u00fa\u0161ka ch\u00f4dze alebo jazdy uk\u00e1\u017ee, \u010di kamera dok\u00e1\u017ee zachyti\u0165 detail aj v re\u00e1lnej udalosti.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Pohyb odhal\u00ed slab\u00e9 miesto sk\u00f4r ne\u017e statick\u00fd obr\u00e1zok<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Pri dlhom expozi\u010dnom \u010dase sa pohybuj\u00faca osoba po\u010das jedn\u00e9ho sn\u00edmku posunie cez viac obrazov\u00fdch bodov. Tv\u00e1r sa zmen\u00ed na svetl\u00fa \u0161muhu a eviden\u010dn\u00e9 \u010d\u00edslo vozidla m\u00f4\u017ee \u00faplne zmizn\u00fa\u0165. Probl\u00e9m sa ned\u00e1 vyrie\u0161i\u0165 jednoduch\u00fdm doostren\u00edm po udalosti, preto\u017ee ch\u00fdbaj\u00faca inform\u00e1cia sa do z\u00e1znamu nikdy nedostala.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Odborn\u00e9 nastavenie preto h\u013ead\u00e1 rovnov\u00e1hu medzi \u010dasom uz\u00e1vierky, ziskom, osvetlen\u00edm a mno\u017estvom \u0161umu. Niekedy je vhodnej\u0161ie prida\u0165 nen\u00e1padn\u00e9 svetlo alebo zmeni\u0165 miesto kamery, ne\u017e sa spolieha\u0165 na extr\u00e9mne digit\u00e1lne zosilnenie.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Sn\u00edma\u010d, objekt\u00edv a svetlo musia spolupracova\u0165<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Kamera nevytv\u00e1ra obraz iba softv\u00e9rom. Svetlo mus\u00ed najprv prejs\u0165 objekt\u00edvom a dopadn\u00fa\u0165 na sn\u00edma\u010d. Kvalita optiky, svetelnos\u0165, ve\u013ekos\u0165 a kon\u0161trukcia sn\u00edma\u010da aj spracovanie sign\u00e1lu ovplyv\u0148uj\u00fa, ko\u013eko pou\u017eite\u013enej inform\u00e1cie zostane v obraze. Preto dve zariadenia s rovnak\u00fdm rozl\u00ed\u0161en\u00edm nemusia ma\u0165 rovnak\u00fa citlivos\u0165 ani rovnak\u00e9 podanie detailov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f4le\u017eit\u00e9 je aj zaostrenie pri skuto\u010dn\u00fdch sveteln\u00fdch podmienkach. Kamera m\u00f4\u017ee by\u0165 cez de\u0148 ostr\u00e1, ale po prepnut\u00ed do no\u010dn\u00e9ho re\u017eimu sa slab\u00e9 nastavenie prejav\u00ed. Pri motorickom objekt\u00edve treba overi\u0165 cel\u00fd po\u017eadovan\u00fd rozsah a pri pevnom objekt\u00edve zvoli\u0165 tak\u00fa ohniskov\u00fa vzdialenos\u0165, aby cie\u013e nebol v z\u00e1bere pr\u00edli\u0161 mal\u00fd.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Infra\u010derven\u00fd obraz alebo farebn\u00fd no\u010dn\u00fd obraz?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Infra\u010derven\u00e9 prisvietenie umo\u017e\u0148uje kamere vidie\u0165 aj v \u00faplnej tme, zvy\u010dajne v\u0161ak vytvor\u00ed \u010diernobiely obraz. Je nen\u00e1padn\u00e9 a praktick\u00e9, no m\u00f4\u017ee sa odr\u00e1\u017ea\u0165 od bl\u00edzkej steny, podh\u013eadu, pavu\u010diny, da\u017e\u010fa alebo hmly. Ak je kamera zle umiestnen\u00e1, osvetl\u00ed najm\u00e4 vlastn\u00e9 okolie a vzdialen\u00fd cie\u013e zostane tmav\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Farebn\u00fd no\u010dn\u00fd obraz potrebuje dostatok vidite\u013en\u00e9ho svetla. M\u00f4\u017ee ho poskytova\u0165 verejn\u00e9 osvetlenie, svetlo pri dome alebo primeran\u00e9 doplnkov\u00e9 prisvietenie. Farba m\u00f4\u017ee pom\u00f4c\u0165 pri opise osoby \u010di vozidla, ale svetlo mus\u00ed by\u0165 navrhnut\u00e9 tak, aby neru\u0161ilo obyvate\u013eov, susedov ani prem\u00e1vku.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Rie\u0161enie<\/strong><\/td><td><strong>V\u00fdhoda<\/strong><\/td><td><strong>Na \u010do si da\u0165 pozor<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Infra\u010derven\u00fd re\u017eim<\/td><td>Obraz aj v \u00faplnej tme bez vidite\u013en\u00e9ho svetla<\/td><td>\u010ciernobiely obraz, odrazy a obmedzen\u00fd dosah<\/td><\/tr><tr><td>Vyu\u017eitie okolit\u00e9ho svetla<\/td><td>Pri vhodnej kamere prirodzen\u00e9 farby<\/td><td>V\u00fdsledok z\u00e1vis\u00ed od st\u00e1lej \u00farovne osvetlenia<\/td><\/tr><tr><td>Riaden\u00e9 biele prisvietenie<\/td><td>Farby a krat\u0161ia expoz\u00edcia pri udalosti<\/td><td>Spr\u00e1vny smer, intenzita a oh\u013eaduplnos\u0165 k okoliu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Protisvetlo a WDR: vstup m\u00f4\u017ee by\u0165 naj\u0165a\u017e\u0161\u00edm miestom<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Vchodov\u00e9 dvere, br\u00e1ny a gar\u00e1\u017ee \u010dasto kombinuj\u00fa tmav\u00fd priestor s jasnou lampou, oblohou alebo svetlami vozidla. Bez spr\u00e1vne zvl\u00e1dnut\u00e9ho dynamick\u00e9ho rozsahu kamera zobraz\u00ed bu\u010f svetl\u00e9 pozadie, alebo tmav\u00fa tv\u00e1r. Samotn\u00fd \u00fadaj v decibeloch pritom nevystihuje, ako syst\u00e9m zvl\u00e1da pohyb a obrazov\u00e9 artefakty.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WDR m\u00f4\u017ee v\u00fdrazne pom\u00f4c\u0165, ale nie je bez kompromisov. Pri nevhodnom nastaven\u00ed sa m\u00f4\u017eu objavi\u0165 duchy, zdvojen\u00e9 kont\u00fary alebo neprirodzen\u00fd pohyb. Preto sa m\u00e1 sk\u00fa\u0161a\u0165 na konkr\u00e9tnom mieste a s re\u00e1lnou osobou, nie iba pod\u013ea technick\u00e9ho listu.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u0160irok\u00fd z\u00e1ber nie je automaticky lep\u0161\u00ed z\u00e1ber<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u010c\u00edm v\u00e4\u010d\u0161iu plochu kamera sleduje, t\u00fdm men\u0161iu \u010das\u0165 obrazu zaber\u00e1 konkr\u00e9tna osoba alebo vozidlo. Jedna \u0161irokouhl\u00e1 kamera m\u00f4\u017ee poskytn\u00fa\u0165 v\u00fdborn\u00fd preh\u013ead o dvore, ale nemus\u00ed zachyti\u0165 tv\u00e1r pri br\u00e1ne. Profesion\u00e1lny n\u00e1vrh preto \u010dasto kombinuje preh\u013eadov\u00e9 kamery s u\u017e\u0161\u00edmi identifika\u010dn\u00fdmi z\u00e1bermi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f4le\u017eit\u00e1 je aj v\u00fd\u0161ka mont\u00e1\u017ee. Pr\u00edli\u0161 vysoko umiestnen\u00e1 kamera s\u00edce nie je \u013eahko dostupn\u00e1, ale m\u00f4\u017ee sn\u00edma\u0165 najm\u00e4 temeno hlavy. Pr\u00edli\u0161 n\u00edzka kamera je zasa zranite\u013enej\u0161ia. Spr\u00e1vne miesto je kompromis medzi ochranou zariadenia, uhlom poh\u013eadu, vzdialenos\u0165ou a cie\u013eom z\u00e1beru.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Kompresia m\u00f4\u017ee rozhodn\u00fa\u0165 o tom, \u010do zostane v z\u00e1zname<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Kamerov\u00fd syst\u00e9m neuklad\u00e1 ka\u017ed\u00fd obraz bez \u00faprav. Video sa komprimuje, aby sa zn\u00ed\u017eili n\u00e1roky na sie\u0165 a disk. Pri primeranom nastaven\u00ed je \u00faspora ve\u013ek\u00e1 a obraz zost\u00e1va pou\u017eite\u013en\u00fd. Pri pr\u00edli\u0161 n\u00edzkom d\u00e1tovom toku v\u0161ak m\u00f4\u017eu pri pohybe vznikn\u00fa\u0165 bloky, rozpad kont\u00far a strata jemn\u00fdch detailov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Preto sa mus\u00ed kontrolova\u0165 nielen \u017eiv\u00fd n\u00e1h\u013ead, ale aj ulo\u017een\u00fd z\u00e1znam a jeho export. Ak m\u00e1 syst\u00e9m dva streamy, mobiln\u00fd n\u00e1h\u013ead m\u00f4\u017ee pou\u017e\u00edva\u0165 \u00faspornej\u0161iu verziu a lok\u00e1lny z\u00e1znam kvalitnej\u0161iu. Z\u00e1kazn\u00edk by mal vedie\u0165, ktor\u00fa kvalitu pr\u00e1ve sleduje.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Ani umel\u00e1 inteligencia neoprav\u00ed zl\u00fd vstupn\u00fd obraz<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Analytika m\u00f4\u017ee rozl\u00ed\u0161i\u0165 osobu od vozidla, vyh\u013eada\u0165 udalos\u0165 alebo zn\u00ed\u017ei\u0165 po\u010det zbyto\u010dn\u00fdch upozornen\u00ed. Ak v\u0161ak kamera zachyt\u00ed iba tmav\u00fa alebo rozmazan\u00fa siluetu, analytika nem\u00e1 z \u010doho vytvori\u0165 ch\u00fdbaj\u00face detaily. Najprv mus\u00ed by\u0165 kvalitn\u00fd obraz a a\u017e potom m\u00e1 v\u00fdznam rie\u0161i\u0165 pokro\u010dil\u00e9 funkcie.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2-1024x683.png\" alt=\"\" class=\"wp-image-112\" srcset=\"https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2-1024x683.png 1024w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2-300x200.png 300w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2-768x512.png 768w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2-1200x800.png 1200w, https:\/\/skyvision.sk\/news\/wp-content\/uploads\/2026\/08\/ChatGPT-Image-10.-8.-2026-12_01_58-2.png 1536w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Profesion\u00e1lne odovzdanie zah\u0155\u0148a kontrolu obrazu po zotmen\u00ed, sk\u00fa\u0161ku pohybu a doladenie z\u00e1beru priamo na chr\u00e1nenom objekte.<\/em><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Ako vyzer\u00e1 profesion\u00e1lna sk\u00fa\u0161ka no\u010dn\u00e9ho obrazu<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ur\u010d\u00ed sa \u00fa\u010del ka\u017edej kamery: preh\u013ead, rozpoznanie osoby, identifik\u00e1cia alebo dokumentovanie udalosti.<\/li>\n\n\n\n<li>Skontroluje sa z\u00e1ber cez de\u0148 aj po zotmen\u00ed vr\u00e1tane l\u00e1mp, odrazov a miest s hlbok\u00fdm tie\u0148om.<\/li>\n\n\n\n<li>Testovacia osoba prejde sc\u00e9nou be\u017enou r\u00fdchlos\u0165ou a vozidlo sa sk\u00fasi pri re\u00e1lnom smere jazdy.<\/li>\n\n\n\n<li>Dolad\u00ed sa expoz\u00edcia, zisk, WDR, od\u0161umenie, prisvietenie a po\u017eadovan\u00fd d\u00e1tov\u00fd tok.<\/li>\n\n\n\n<li>Over\u00ed sa \u017eiv\u00fd obraz, ulo\u017een\u00fd z\u00e1znam aj export nieko\u013ek\u00fdch sek\u00fand incidentu.<\/li>\n\n\n\n<li>Z\u00e1kazn\u00edk dostane vysvetlenie obmedzen\u00ed z\u00e1beru a vie, \u010do m\u00e1 od syst\u00e9mu realisticky o\u010dak\u00e1va\u0165.<\/li>\n<\/ol>\n\n\n\n<h1 class=\"wp-block-heading\">Naj\u010dastej\u0161ie marketingov\u00e9 pasce<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Porovn\u00e1vanie iba pod\u013ea megapixelov bez uk\u00e1\u017eky pohybuj\u00faceho sa objektu v noci.<\/li>\n\n\n\n<li>S\u013eubovan\u00fd no\u010dn\u00fd dosah bez zoh\u013eadnenia \u0161\u00edrky sc\u00e9ny, odrazivosti objektov a okolit\u00e9ho svetla.<\/li>\n\n\n\n<li>Farebn\u00fd no\u010dn\u00fd obraz prezentovan\u00fd v sc\u00e9ne, ktor\u00e1 je v skuto\u010dnosti dobre osvetlen\u00e1.<\/li>\n\n\n\n<li>Ve\u013emi \u0161irok\u00fd uhol z\u00e1beru vyd\u00e1van\u00fd za n\u00e1hradu viacer\u00fdch spr\u00e1vne umiestnen\u00fdch kamier.<\/li>\n\n\n\n<li>Uk\u00e1\u017eka \u017eiv\u00e9ho n\u00e1h\u013eadu bez kontroly kvality ulo\u017een\u00e9ho z\u00e1znamu a exportu.<\/li>\n\n\n\n<li>Pokro\u010dil\u00e1 analytika pon\u00fakan\u00e1 ako n\u00e1hrada za kvalitn\u00fa optiku, mont\u00e1\u017e a osvetlenie.<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">\u010co m\u00e1 obsahova\u0165 kvalitn\u00e1 ponuka<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u00da\u010del a o\u010dak\u00e1van\u00fd detail pre ka\u017ed\u00e9 miesto, nie iba po\u010det kamier.<\/li>\n\n\n\n<li>Typ objekt\u00edvu, pribli\u017en\u00fd uhol, vzdialenos\u0165 a predpokladan\u00e9 sveteln\u00e9 podmienky.<\/li>\n\n\n\n<li>Sp\u00f4sob no\u010dn\u00e9ho sn\u00edmania a upozornenie na mo\u017en\u00e9 odrazy alebo potrebu osvetlenia.<\/li>\n\n\n\n<li>Nastavenie rozl\u00ed\u0161enia, sn\u00edmkovania, d\u00e1tov\u00e9ho toku, kompresie a d\u013a\u017eky arch\u00edvu.<\/li>\n\n\n\n<li>Mont\u00e1\u017eny materi\u00e1l, ochranu kabel\u00e1\u017ee, konfigur\u00e1ciu \u00fa\u010dtov a bezpe\u010dn\u00fd vzdialen\u00fd pr\u00edstup.<\/li>\n\n\n\n<li>Funk\u010dn\u00fa sk\u00fa\u0161ku, dokument\u00e1ciu, za\u0161kolenie a n\u00e1sledn\u00fd servis.<\/li>\n<\/ol>\n\n\n\n<h1 class=\"wp-block-heading\">Naj\u010dastej\u0161ie ot\u00e1zky<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Je 8 Mpx kamera v\u017edy lep\u0161ia ne\u017e 4 Mpx kamera?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nie. Vy\u0161\u0161ie rozl\u00ed\u0161enie m\u00f4\u017ee prinies\u0165 viac detailov, ale v\u00fdsledok z\u00e1vis\u00ed aj od svetla, sn\u00edma\u010da, objekt\u00edvu, expoz\u00edcie, kompresie a ve\u013ekosti objektu v z\u00e1bere. Porovn\u00e1va\u0165 treba pou\u017eite\u013en\u00fd v\u00fdsledok v konkr\u00e9tnej sc\u00e9ne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pre\u010do je osoba v noci rozmazan\u00e1, hoci dom stoj\u00ed ostro?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dom sa nepohybuje, preto m\u00f4\u017ee by\u0165 ostr\u00fd aj pri dlh\u0161ej expoz\u00edcii. Pohybuj\u00faca sa osoba sa po\u010das sn\u00edmku posunie a jej tv\u00e1r sa rozma\u017ee. Pom\u00f4\u017ee krat\u0161ia expoz\u00edcia, viac svetla, vhodnej\u0161\u00ed uhol alebo citlivej\u0161ie rie\u0161enie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Je infra\u010derven\u00e9 prisvietenie nevidite\u013en\u00e9?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Be\u017en\u00e9 infra\u010derven\u00e9 svetlo sc\u00e9nu neosvet\u013euje ako klasick\u00e1 lampa, na kamere v\u0161ak m\u00f4\u017ee by\u0165 vidite\u013en\u00e1 slab\u00e1 \u010derven\u00e1 \u017eiara. V\u00fdsledok z\u00e1vis\u00ed od pou\u017eitej technol\u00f3gie a vlnovej d\u013a\u017eky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dok\u00e1\u017ee kamera vidie\u0165 farebne v \u00faplnej tme?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na farebn\u00fd obraz potrebuje vidite\u013en\u00e9 svetlo. M\u00f4\u017ee \u00eds\u0165 o okolit\u00e9 osvetlenie alebo riaden\u00e9 prisvietenie. Bez neho kamera zvy\u010dajne pou\u017eije infra\u010derven\u00fd \u010diernobiely re\u017eim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00e1 sa zl\u00fd no\u010dn\u00fd z\u00e1znam dodato\u010dne vy\u010disti\u0165?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00daprava m\u00f4\u017ee zv\u00fdrazni\u0165 to, \u010do u\u017e v obraze je, nedok\u00e1\u017ee v\u0161ak spo\u013eahlivo obnovi\u0165 tv\u00e1r alebo znaky, ktor\u00e9 sa pre rozmazanie, prep\u00e1lenie \u010di kompresiu v\u00f4bec nezaznamenali.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Je potrebn\u00e9 nastavova\u0165 kameru po zotmen\u00ed?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pri d\u00f4le\u017eit\u00fdch z\u00e1beroch je to ve\u013emi vhodn\u00e9. Denn\u00e1 kontrola neodhal\u00ed v\u0161etky odrazy infra\u010derven\u00e9ho svetla, protisvetlo, pohybov\u00e9 rozmazanie ani skuto\u010dn\u00fd dosah osvetlenia.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Nekupujte po\u010det pixelov. Vyberajte pou\u017eite\u013en\u00fd v\u00fdsledok.<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>ODPOR\u00da\u010cANIE SKYVISION<\/strong> <strong>SkyVision navrhne z\u00e1bery pod\u013ea konkr\u00e9tneho cie\u013ea, prever\u00ed sveteln\u00e9 podmienky a syst\u00e9m nastav\u00ed tak, aby bol obraz pou\u017eite\u013en\u00fd aj pri re\u00e1lnom pohybe a po zotmen\u00ed. Ako dr\u017eite\u013e licencie na prev\u00e1dzkovanie technickej slu\u017eby zabezpe\u010dujeme odborn\u00fd n\u00e1vrh, mont\u00e1\u017e, nastavenie, odovzdanie aj servis.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dohodnite si odborn\u00fa obhliadku a n\u00e1vrh rie\u0161enia na mieru: <\/strong><a href=\"https:\/\/skyvision.sk\">www.skyvision.sk<\/a><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Pou\u017eit\u00e9 zdroje a odborn\u00e9 podklady<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Zdroje boli overen\u00e9 k 10. augustu 2026. Konkr\u00e9tne schopnosti, kompatibilita a d\u013a\u017eka z\u00e1lo\u017enej prev\u00e1dzky v\u017edy z\u00e1visia od pou\u017eit\u00fdch zariaden\u00ed, nastavenia a n\u00e1vrhu syst\u00e9mu.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/whitepapers.axis.com\/en-us\/lightfinder\">Odborn\u00fd whitepaper o obraze v slabom svetle a pohybovom rozmazan\u00ed<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/whitepapers.axis.com\/en-us\/quality-with-a-purpose\">Odborn\u00fd whitepaper o pou\u017eite\u013enosti obrazu a WDR<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/whitepapers.axis.com\/en-us\/wide-dynamic-range\">Odborn\u00fd whitepaper o \u0161irokom dynamickom rozsahu<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/help.axis.com\/en-us\/axis-q1805-le\">Technick\u00e1 dokument\u00e1cia k expoz\u00edcii, zisku a pohybov\u00e9mu rozmazaniu<\/a><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.slov-lex.sk\/ezbierky\/pravne-predpisy\/SK\/ZZ\/2005\/473\/\">Z\u00e1kon \u010d. 473\/2005 Z. z. o s\u00fakromnej bezpe\u010dnosti &#8211; aktu\u00e1lne znenie<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Megapixely s\u00fa iba za\u010diatok. Pou\u017eite\u013en\u00fd d\u00f4kaz vznik\u00e1 kombin\u00e1ciou optiky, svetla, nastavenia a spr\u00e1vneho n\u00e1vrhu. Rovnak\u00fd \u00fadaj o rozl\u00ed\u0161en\u00ed e\u0161te neznamen\u00e1 rovnak\u00fd v\u00fdsledok. Pri pohybe, protisvetle a slabom osvetlen\u00ed sa rozdiel medzi kamerami uk\u00e1\u017ee naplno.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-109","post","type-post","status-publish","format-standard","hentry","category-typy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pre\u010do nie je ka\u017ed\u00e1 4K kamera rovnak\u00e1 a \u010do rozhoduje o kvalite obrazu v noci? - SkyVision<\/title>\n<meta name=\"description\" content=\"Megapixely s\u00fa iba za\u010diatok. 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