I-DVD Namhlanje ne-# 39; i-TV
Ngokuza kwe-HDTV (kwaye, ngoku kutshanje, i- 4K Ultra HD TV ), ukuphuhliswa kwamacandelo okufanisa ukulungiswa kwamandla kwiiTV kuya kuba luleke ngakumbi. Njengesisombululo, abaninzi abadlali beDVD (abo basesekhoyo) banamashishini anokwenza "upscaling" ukulungelelanisa ukusebenza komdlali weDVD kunye namanqanaba e-HD namhlanje kunye ne-4K Ultra HD TV.
Nangona kunjalo, ubukho befomathi ye-Blu-ray ye-disk budidekisile imbambano malunga nomlinganiselo phakathi kwe-upscaling yeDVD efanelekileyo kunye nenkolelo ephezulu ye-Blu-ray.
Ukuze ichazwe ngevidiyo yeDVD ukuhlaziya kunye nendlela ihambelana ngayo nevidiyo ecacileyo yeyona nkcazo, njenge-Blu-ray, qhubeka ufunda ...
Resolution DVD Resolution
Ifomathi yeDVD isekela isisombululo sevidiyo somthonyama se-720x480 (480i). Oku kuthetha ukuba xa ubeka idiski kumdlali weDVD, oko kusisombululo sokuba umdlali ufunde i-disc. Ngenxa yoko, i-DVD ikwahlulelwa njengesakhiwo esisombululo esisigxina.
Nangona oku kulungile xa i-DVD ifomathi yaqala ngo-1997, kungekudala emva kokukhululwa kwebalawuli beDVD yabadlali benza isigqibo sokuphucula umgangatho weemifanekiso zeDVD ngokusebenzisa ukuphunyezwa kwenkcukacha ezongezelelweyo kwiDVD emva kokufundwa kwi-disc, kodwa ngaphambi kokuba fi kelele kwiTV. Le nqubo ibhekiswa njengeSkrip Scan .
Abadlali beDVD abaqhubela phambili bavelisa isisombululo esifanayo (720x480) njengomdlali weDVD ongeyena oqhubekayo wokukhangela, nangona kunjalo, ukukhangela okuqhubekayo kwanikezela umfanekiso obonakalayo.
Nasi uqhathaniso lwe-480i ne-480p:
- I-480i ibonisa iipekseli ezi-720 eziboniswe kwinqanaba eliphezulu kunye nee-pixels ezingama-480 phantsi kwesikrini. Eli lungiselelo livelisa imigca engama-480 ejikelezayo, echazwe ngokunye. Ngamanye amagama, yonke imigca engavumelekanga iboniswa, ilandelwa yiyo yonke imigca.
- I-480p ibonisa iipekseli ezingama-720 eziboniswe kwi-screen kwinqanaba kunye nama-pixels angama-480 phantsi kwesikrini. Eli lungiselelo lunikeza imizila engama-480 engqamlekileyo kwikhrini, ebonakalayo, ibonisa ngokuthe gqolo, okanye umgca ngamnye uboniswe emva kwesinye.
Inkqubo yokuLawula
Nangona ukukhangela okuqhubela phambili kwanikezela imifanekiso emgangathweni ephucukileyo kwiiTV ezihambelanayo, ngokusungulwa kwe-HDTV, ngokukhawuleza kwabonakala ukuba nangona iiDVD zodwa zanikezela ngesisombululo se-720x480, umgangatho walezo mifanekiso imithombo ingahlaziywa nangakumbi ngokuphumeza inkqubo ebizwa ngokuba yi-Upscaling.
Upscaling yinkqubo ehambelana nemathematika yokubala kwepikseli yomkhiqizo we-DVD uphawu kumbalo wepikseli ngokomzimba kwi-HDTV, ngokuqhelekileyo i- 1280x720 (720p) , i- 1920x1080 (1080i okanye i-1080p), kwaye ngoku, ama-TV amaninzi afaka u- 3840x2160 (2160p okanye 4K) .
- I-720p ibonisa iipikseli ezi-1,280 eziboniswe kwinqanaba elisezantsi kunye nee-pixels ezingu-720 phantsi kwesikrini. Eli lungiselelo livelisa imizila engama-720 engqamlekileyo kwiskrini, ebonakalayo, ibonisa ngokuthe gqolo, okanye umgca ngamnye uboniswe emva kwesinye.
- I-1080i ibonisa amaphikseli angu-1,920 aboniswe kwinqanaba elisezantsi kunye nama-pixels angu-1,080 phantsi kwesikrini ngokuzenzekelayo. Eli lungiselelo linika imitha engama-1,080 engqamlezileyo, echazwe ngokunye. Ngamanye amagama, yonke imigca engavumelekanga iboniswa, ilandelwa yiyo yonke imigca.
- I-1080p , ibonisa i-1,080 imigca ejikelezayo iboniswe ngokulandelelana. Oku kuthetha ukuba yonke imigca iboniswa ngexesha lokupasa okufanayo.
- I-4K (okanye i-2160p) , ngakolunye uhlangothi, imele iingu-3,480 imigca ejikelezayo iboniswe ngokulandelelana. Oku kuthetha ukuba yonke imigca iboniswa ngexesha lokupasa okufanayo. I-4K yile fom yokubonisa iHD ephezulu.
Umphumo Osebenzayo weDVD Upscaling
Ukubukeka, kukho umncinci kakhulu kumbono wabathengi abaphakathi kwe- 720p no-1080i . Nangona kunjalo, i-720p iyakwazi ukuhambisa umfanekiso okhangeleka ngokukhawuleza, ngenxa yokuba imigca kunye neepikseli zibonakaliswa kumzekelo olandelanayo, kunokuba kufakwe enye iphethini.
Inkqubo yokuphucula ibonisa umsebenzi ohambelana nomkhiqizo we-pixel ophakanyisiweyo we-DVD umdlalo we-pixel yembonakalo ye-HDTV enekhono lokwenza umabonwakude, okubangela ukuba iinkcukacha ezingcono kunye nombala ohambisanayo.
Nangona kunjalo, i-upscaling, njengoko iqhutywe ngoku, ayikwazi ukuguqula imifanekiso yeDVD efanelekileyo kwimifanekiso eqingqiweyo (okanye i-4K) imifanekiso. Enyanisweni, nangona i-upscaling isebenza kakuhle kunye ne-pixel ebonakalisiweyo, efana ne- Plasma , i- LCD kunye ne- OLED yeTV, iziphumo azihlali zihambelana ne-CRT-based HDTVs (ngenhlanhla azininzi kakhulu ezo zisetyenziswayo).
Iingongoma Zokukhumbula Ngama DVD kunye neDVD Upscaling:
- Naliphi na umdlali weDVD ongagxinwa kwi-HDTV. Nangona abadlali beDVD abaphuculweyo bekwazi ukufana nesisombululo se-pixel sokuzalwa se-HDTV, unakho iziphumo ezilungileyo kumdlali weDVD oqhelekileyo (ngaphandle kokukhangela okuqhubela phambili okanye ukunyuka kwe-upscaling) exhunyiwe kwi-HDTV okanye i-S-Video (input). : iiTV ezininzi ezitsha zineziphumo ezingenayo i-S).
- Ukuba unayo i-HDTV (okanye i-4K Ultra HD TV), kunye nomdlali weDVD oqhelekileyo, uza kufumana iziphumo ezingcono usebenzisa uxhulumaniso lwevidiyo (obomvu-obomvu-oluhlaza) phakathi komdlali weDVD kunye ne-HDTV. Ukongeza, ukuba umdlali wakho weDVD uqhubela phambili ukukhangela, sebenzisa loo ndlela xa uxhumeke kwi-scan ehamba phambili ene-T. Nokuba kunjalo, ukuba umdlali wakho weDVD unokukwazi ukuxhumela phezulu, uya kuba noxhumano lwe- HDMI . Sebenzisa uxhulumaniso lwe-HDMI ukufumana abadlali beDVD abaphakamisa amandla.
- Ividiyo ye-DVD upscaling kuphela ukulingana kwamava okubuka iqondo eliphezulu. Ukuze ufumane impembelelo epheleleyo yokujonga kweyona nkcazelo ephezulu kwifom ye diski, kufuneka ube nomdlali we-Blu-ray exhunywe kwi-HDTV ngokusebenzisa uxhumano lwe-HDMI kwaye ubone umxholo we-Blu-ray wangempela. Ifomathi yediskhi ye-Blu-ray isekela i-720p, i-1080i, kunye ne-1080p yokuqululwa komxholo.
I-DVD Upscaling vs Blu-ray
- I-DVD engapheliyo (nangona i-intle yayo) ingahambelani nomgangatho womthombo we-Blu-ray wedatha. Xa kuthelekiswa ne-Blu-ray disc, i-DVD ekhutshwe ngokukhawuleza ibukeka ibonakale ingqabileyo kwaye ichane (ngakumbi kwimvelaphi) kuneBlu-ray. Kwakhona, ngokubhekiselele kumbala, xa ukhangela iReds kunye neBlues, kulula ukuchazela umahluko kumaxesha amaninzi, njengokuba iDVD ephakamileyo, i-reds kunye ne-blues inomdla wokwenza ngaphezulu kweenkcukacha ezinokuba ngaphantsi, ngelixa imibala efanayo kwi-Blu-ray zinzima kakhulu kwaye usabona iinkcukacha phantsi kombala.
- Bonke abadlali be-Blu-ray Disc bangenza umsebenzi we-upscaling kwiiDVD eziqhelekileyo, ngaphandle kokuba umdlali we-Blu-ray Disc uxhumeke kwi-HDTV (okanye i-4K Ultra HD TV) usebenzisa inketho yokuxhumeka kwe-HDMI.
- Kwimeko ye-Ultra HD TV, nangona umdlali weDVD okhuphayo unokwenza i-DVD kuphela kwi-1080p - i-Ultra HD TV iya kwamkela i-signal kwaye iqhubele phambili kwi-4K Ultra HD. Kwakhona, abanye abadlali be-Blu-ray Disc baye bakha-4K upscaling kwiDVD ne-Blu-ray Disc playback. Ukuba umdlali we-Blu-ray dis disc akaboneleli lo mfanekiso, kwakhona kwakhona, i-4K Ultra HD TV iya kuphakamisa isalathisi esingu-1080p ukusuka kumdlali we-Blu-ray Disc ukuya ku-4K.
Ulwazi olungeziwe Kubanikazi be-HD-DVD Player
Ifomathi ye-HD-DVD yavalwa ngokusemthethweni ngo-2008. Nangona kunjalo, kulabo abanokuhlala kunye nokusebenzisa i-HD-DVD player kunye neeDiski, inkcazo efanayo eposwe ngasentla ifakeka kubudlelwane phakathi kweDVD Upscaling kunye ne- HD-DVD njengoko yenza phakathi kweDVD upscaling ne-Blu-ray disc.