Mafomu eHDR anofananidzwa: HDR10, Dolby Vision, HLG, uye Technicolor

Iyo LG yakakombama pamadziro TV inoratidzira inotsigira HDR10.

Kana iwe uri kutsvaga yeiyo 4K nyowani-yakakwira-tsananguro TV, inenge ichinyatso tsigira yakakwira-simba-renji (HDR) vhidhiyo. Asi ndeupi musiyano uripo pakati pemakwikwi eHDR mafomati? Iwe unofanirwa kukoshesa izvi mukutenga kwako?

Chii chinonzi HDR?

HDR inomirira yakakwira simba renji. Iyo inongoreva chete kune inoonekwa midhiya, mafirimu epaTV, mitambo yemavhidhiyo, kana mifananidzo. Mukukosha, HDR inopa iri nani, yakajeka mufananidzo ine zvimwe zvakadzama kupfuura yakajairwa tsananguro vhidhiyo kana mufananidzo.

Nepo dudziro yakajairwa yezvinyorwa (kana SDR) ichingogumira kumasere masere pachiteshi cheruzivo rwemuvara, HDR inoshandisa 10-bit ruvara sehwaro (mamwe maitiro anotsigira anosvika gumi nemaviri bits). Hurefu hwemhando yepamusoro hunoreva zvakawanda mumvuri mumwechete, izvo zvinoderedza zvakanyanya chiitiko chinonzi "banding."

Vhidhiyo yakaratidzwa mu8-bit ruvara inongogumira pamakumi mashanu nematanhatu ematanji pachiteshi, nepo HDR vhidhiyo ichiwedzera icho kusvika 256. Izvi zvinoguma neshanduko dzakatsetseka pakati pemaruva akasiyana eeruvara rumwe kune mumwe mufananidzo wakaita seupenyu. Izvi zvinoshanda kune grays, zvakare, kugadzirisa padhuze-nhema kuita kwemashoko ari nani mumumvuri uye zvisingadzimike zvimiro.

Pamusoro peiyo yakafara color gamut, yakakwira-ine simba-vhidhiyo vhidhiyo inobatawo yakazara mufananidzo kupenya. SDR vhidhiyo inoziva pa100 nits yekukwirira kupenya, danho ese akajairwa-tsananguro ekuratidzira akagadzirirwa kusangana. Vhidhiyo yeHDR ine hunyanzvi pakakwirira kupenya kwepamusoro kwenzwi chiuru kana kupfuura, zvinoenderana nemhando yacho.

Izvi zvinoreva kuti zvemukati zveHDR zvinogona kuwedzera kupenya, kune chaiwo mufananidzo. Izvi hazvireve kuti chiitiko chose chinogara chakajeka kupfuura vhidhiyo yeSDR, asi asi, zvinhu zvega. Iyi inogona kuve kenduru murima, zuva, kana kupenya kwekuputika.

Kuti unzwisise zvechokwadi zvinoita kuti HDR ive nani zvakanyanya kupfuura SDR, unofanirwa kuzviona.

HDR10: Iyo "Yakajairwa" Kuteedzera

Iko logo yeHDR10.

HDR10 ndiyo yekutanga hwaro pane yega HDR-inoenderana TV. Kana iwe ukatenga 4K Ultra-HD Blu-ray ine "HDR" chinamirwa pairi, ichazoburitswa muHDR10. Mamwe eaya maBlu-rays anotsigira mamwe mahedhiyo eHDR, futi. Zvisinei, HDR10 ndiyo "inoenderana nemamiriro" ese maTV anogona kudonha kumashure.

Zvemukati zvakagadzirwa zveHDR10 zvine hunyanzvi kusvika anosvika chiuru nits dzekukwirisa kupenya. Iyo inoshandisa static metadata kutsanangura avhareji furemu mwenje mwero uye kupenya kwakanyanya, izvo zvinobatsira TV yako kunzwisisa maitiro ekuratidzira iyo yose kugadzirwa. Kunyangwe HDR1,000 iri "yakajairika" fomati yeHDR, icharamba ichitaridzika zvakanyanya kupfuura SDR zvemukati.

Sezvo HDR10 iri yakavhurika fomati, zvakare ine hwakawanda hwakawanda hwekutsigirwa kubva kune ese maTV uye kuongorora vagadziri uye vanogadzira zvemukati. Makumi-bit makamera, sePanasonic GH-5s, uye zvinoratidzwa zvinokwanisa kusvika chiuru nits dzekukwirisa kupenya, zvave kugadzira kuburitsa HDR1,000 zvemukati zviri nyore kuwana kupfuura zvayaimboita.

Nekuda kweizvozvo, iwe unowana HDR10 zvemukati kwese kwese, kusanganisira yakawanda yemahara zvemukati pane YouTube. Kunyangwe paine zviripo zvisina zviyero zvemitambo yeHDR, zvinonyaradza uye Windows shandisa HDR10 kuendesa mitambo mune yakakwira simba renji, zvakare.

HDR10 +: Yakagadziridzwa HDR ine Dynamic Metadata

Iyo HDR 10+ logo.

HDR10 + ndiyo imwe yakavhurika standard, asi inogadzirwa neSamsung uye Amazon Vhidhiyo. Iyo inovandudza paHDR10 nekushandisa ine simba metadata iyo inogona kugadzirisa kujekesa pane yega-chiitiko kana furemu-ne-furemu hwaro. Zvemukati zvakagadzirwa muHDR10 + parizvino inyanzvi kusvika pamakumi mana ezviuru zvekupenya kwepamusoro. Izvi zvinoreva kuti HDR4,000 + zvemukati zvinogona kupenya zvakanyanya kupfuura HDR10.

Iyo HDR10 + yakajairika zvakare yakagadzirirwa kutsigira mavhidhiyo anosvika 16-bit kudzika kwemavara, 8K resolution, uye kupenya kwepamusoro kwema 10,000 nits. Nekudaro, pakunyora uku, hapana zvemukati zvakagadzirwa izvo zvinotosvika pane izvi zvirevo.

Dambudziko hombe neHDR10 + kushomeka kwekuwanikwa. Parizvino, Samsung ndiyo yega hombe-zita mugadziri kuti aende-mukati mayo, kunyange hazvo paine kutsigirwa kushoma kubva kuPanasonic, Vizio, naOppo.

Zvemukati zvakare zvishoma - pakunyora uku, chete Amazon Vhidhiyo inopa yekushambadzira zvemukati muHDR10 +.

Dolby Vision: Fomu Renzvimbo ine Dynamic Metadata

Iyo Dolby Vision logo.

Dolby Vision inokwikwidza yakananga yeHDR10 +, uye inogovera zvakawanda zvakafanana kubva kune yekuona nzvimbo. Parizvino Dolby Vision zvemukati zvinozivikanwa pakupenya kunosvika kumakumi mana ematanhatu, asi inotsigira inosvika zviuru gumi, pamwe nekugadziriswa kwe4,000K mu10,000-bit ruvara, mune ramangwana. Iyo zvakare inoshandisa ine simba metadata yezvinoitika-ne-zviitiko zvigadziriso kuvandudza huwandu hwakazara hwemifananidzo.

Nekuti Dolby Vision chimiro chemuridzi, vagadziri veTV vanofanirwa kubhadhara kuti vashandise. Inonyanya kuwanikwa pamaTV ekumusoro-soro, asi yakagamuchirwa zvakanyanya neLG, Sony, TCL, Hisense, Panasonic, uye Philips. Samsung ndiyo yega inogadzira inogadzira iyo yakadzivisa Dolby Vision zvachose ichida HDR10 +.

Kana iwe ukanyatsotsvaga, kune maTV kunze uko anotsigira mafomati ese. Nekudaro, HDR10 + inoonekwa zvakaoma kuwana kupfuura Dolby Vision. Kune zvakare zvakare zvimwe zvakawanda zvirimo zvirimo muDolby Vision. Mazhinji maNetflix neDisney + anoratidzwa anogadzirwa muDolby Vision, nerutsigiro rwezvimwe zvinoratidzwa pamasevhisi seAmazon Prime Vhidhiyo uye VUDU.

Sezvo Dolby Vision iri pedyo zvakasungirirwa kune zvemukati zvakagadzirwa zveDolby Cinemas, izvi zvinogona kunge zvakapa fomati kukurudzira kwakakosha kwekutsigirwa kwakapararira pakati pevanogadzira zvemukati.

Kune zvakare rutsigiro rweDolby Vision muXbox Series X uye Series S, iyo inovimbisa kuendesa yekutanga Dolby Vision mitambo yekutamba muna 2021. Tichafanirwa kumirira kuti tione kuti izvo zvinobuda sei, asi chimwe chinhu chekuchengetedza mupfungwa kana iwe ndichave kutenga inotevera-gen Xbox chero nguva nguva pfupi.

Mbeu dzakauchikwa Log-Gamma: Iyo Broadcast Standard

Mutsetse wegirafu uchienzanisa kukosha kwemasaini uye mwenje mwenje weSDR Gamma Curve uye Hybrid Log-Gamma (HLG).

Nhepfenyuro zviyero zvinoshanduka zvakasiyana nezvigadzirwa zviyero, asi izvo hazvireve kunamatira ne SDR zvachose. Hybrid Log-Gamma (HLG) iri yakavhurika-nhepfenyuro fomati yakagadzirwa neBBC muUK uye NHK yeruzhinji muJapan. Iyo fomati-inowirirana fomati iyo inoshandisa HDR vhidhiyo pamusoro pekutepfenyurwa. HLG inonyanya kunongedza kupenya kwepamusoro kwema 1,000 nits, senge HDR10.

Nekuti nhepfenyuro dzinofanirwa kuverengerwa kwakakura kwakasiyana-siyana emidziyo ine kugona kwakasiyana, kuve nechokwadi chekuti nhepfenyuro dzemazuva ano dzeHDR dzinoratidza nenzira kwayo pane zvekare SDR kuratidza kwakakosha. HLG inoitisa izvi nekuendesa chiratidzo chinobvumidza yemazuva ano HDR kuratidza kuti iwane hukuru hwakakura huwandu pasina kuvhara musuwo kune yekare tekinoroji.

Kunyangwe iyi fomati yakagadzirirwa kutepfenyura, zvakare inotsigirwa nemasevhisi ekushambadzira, kusanganisira YouTube neBBC iPlayer. Varairidzi vatove kushandisa HLG vanosanganisira Eutelsat, DirecTV, uye Sky UK

Yepamberi HDR neTechnicolor: Vakafa paKusvika

Iyo Technicolor logo.

Imwe fomati yeHDR yakatadza kutora chero vateereri yaive Advanced HDR neTechnicolor. Yakapayona neLG uye Technicolor, fomati yakatanga kuoneka kutenderedza 2016. Yakaita nzira yayo kupinda LG materevhizheni kusvika 2019, apo kambani nekukurumidza yakabvisa rutsigiro rwefomati kubva kune yayo 2020 lineup. Izvi zvinobudirira zvakauraya tekinoroji.

Nyaya yekutanga pamwe nekuedza kwaTechnicolor kwaive kushomeka kwemukati. Kubva munaGunyana 2020, hatina kukwanisa kuwana imwe bhaisikopo rekutengesa rine hunyanzvi muAdvanced HDR kana chero sevhisi yekushambadzira inoitsigira. Izvi zvinogadzira Advanced HDR neTechnicolor iyo HD-DVD yeHDR.

Ndeipi Fomati Yaunofanirwa Kuisa In In?

Kana iwe uri kutenga iyo HDR TV muna 2020 (kana kupfuura), inotsigira HDR10, inova hombe kusvetuka mune ine simba renji uye kupenya pamusoro peyakajairika-tsananguro yezvinyorwa. Kana usati uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchiita Kuti ubatsirwe nazvo, iwe uchazoda TV inowana kumwe kunhu kusvika kune chiuru nits dzekupenya uye zvemukati zvine ruzivo kuti utore mukana nazvo.

Beyond HDR10, Dolby Vision ine rutsigiro rwakakura kwazvo pakati pevaviri vagadziri vezvinhu uye vagadziri veterevhizheni. Mamwe maBlu-rays uye ekushambadzira masevhisi anowanikwa muDolby Vision. Iyo fomati iri zvakare yakasarudzika ramangwana-chiratidzo nekuti hatizoone zvakanakanaka zvayinofanira kupa kudzamara yekuratidzira tekinoroji ichikura mberi. Nekudaro, ese maRoku neGoogle achaburitsa mabhokisi ekushambadzira anotsigira Dolby Vision gore rino.

Iwe zvakare une akawanda maTV kusarudza kubva kune iyo tsigiro Dolby Vision, nepo HDR10 + rutsigiro rwakaganhurirwa zvakanyanya kune Samsung. Vizio neHisense vanogadzira maTV anotsigira ese ari maviri, asi kwete ese modhi. Zvakare, mashoma kwazvo mafirimu anoziva muHDR10 + uye chete Amazon inogadzira zvemukati zvemukati nazvo.

Nekuti HLG iri nhepfenyuro yakajairwa, mazhinji maTV emazuva ano anoitsigira ichienda kumberi. Chiratidziro chako hachifanirwe kutsigira HLG kuti iwe ugamuchire nhepfenyuro, zvakadaro. Kana iwe usinga tarise yakawanda network yeTV kana tambo, unogona kuisa HLG pasi pane yako runyorwa rwezvinokosha.

Muzviitiko zvakawanda, iyo TV yaunosarudza inoraira zviyero zvaunogona kunakidzwa nazvo. Tichifunga izvozvo, iwe zvakare uchada kunzwisisa iyo mutsauko pakati pekuratidzira matekinoroji saka unogona kuita sarudzo ine ruzivo.

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