DVD Ndipo Masiku & # 39; s Ma TV
Pokhala ndi HDTV (ndipo, posachedwa, 4K Ultra HD TV ), chitukuko cha zigawo zikuluzikulu zofanana ndi zomwe zidawoneka pa TVzi zikukhala zofunikira kwambiri. Monga njira yothetsera vutoli, ambiri osewera DVD (omwe adakalipo) ali ndi "upscaling" kuti athe kugwirizanitsa ntchito ya DVD player ndi mphamvu za HD ndi 4K Ultra HD TV.
Komabe, kukhalapo kwa Blu-ray disc mtundu kumasokoneza nkhani yokhudza kusiyanitsa pakati pa kukwera kwa DVD yapamwamba ndi mphamvu yeniyeni yeniyeni ya Blu-ray.
Kuti mudziwe zambiri za DVD kanema upscaling komanso momwe ikukhudzira mavidiyo otchuka, monga Blu-ray, pitirizani kuwerenga ...
Standard DVD Resolution
Zithunzi za DVD zimapereka chisankho chowonetsera mavidiyo a 720x480 (480i). Izi zikutanthauza kuti mukayika diski mu DVD player, ndicho chiganizo chomwe wosewera mpira akuwerenga. Zotsatira zake, DVD imasankhidwa kukhala mawonekedwe omaliza.
Ngakhale izi zinali zabwino pamene DVDyi inayamba mu 1997, itangotha kumasulidwa DVD ochita masewera a DVD adapanga chisankho chokulitsa zithunzi za DVD mwa kugwiritsa ntchito njira zowonjezera ku DVD pambuyo powerenga pa disk, koma isanafike adafika pa TV. Njirayi imatchedwa Progressive Scan .
Owonetsa ma DVD omwe amawunikira patsogolo akupereka chigamulo chomwecho (720x480) ngati osasintha omwe amawathandiza kuti azigwiritsa ntchito DVD, komabe, kufufuza kwapang'onopang'ono kunapanga chithunzi chowoneka bwino.
Pano pali kusiyana kwa 480i ndi 480p:
- 480i imaimira mapikseli 720 omwe amawonetsedwa pawindo pang'onopang'ono ndi ma pixels 480 pansi pazenera pamtunda. Makonzedwe ameneŵa amapereka mizere 480 yopanda malire, yomwe ili, kenako, yosonyeza zina. Mwa kuyankhula kwina, mizere yonse yosamvetseka imawonetsedwa, ikutsatiridwa ndi mizere yonse ngakhale.
- 480p imayimira mapikseli 720 omwe amawonetsedwa pawindo pang'onopang'ono ndi ma pixelisi 480 pansi pazenera. Makonzedwe ameneŵa amapereka mizere 480 yosakanizika pazenera, zomwe zakhala zikuwonetseratu pang'onopang'ono, kapena mzere uliwonse womwe umatsatiridwa ndi wina.
Njira Yothandizira
Ngakhale kupyolera patsogolo kwapangidwe kunapangitsa kuti zithunzi zapamwamba ziziyenda bwino pa TV zomwe zimayendera bwino, panthawi yomwe HDTV imayambitsidwa, posakhalitsa zinaonekeratu kuti ngakhale kuti DVD zangopereka chisankho cha 720x480, khalidwe la zithunzizo likhoza kupitsidwanso bwino poyambitsa ndondomeko yotchedwa Upscaling.
Kuwongolera ndi njira yomwe masamu amawerengera kuwerengera kwa pixel ya chiwonetsero cha kanema ya DVD ku chiwerengero cha pixel ku HDTV, yomwe nthawi zambiri imakhala 1280x720 (720p) , 1920x1080 (1080i kapena 1080p), ndipo panopa ma TV ambiri amakhala 3840x2160 (2160p kapena 4K) .
- 720p imayimira mapikseli 1,280 omwe amawonetsedwa pawindo pang'onopang'ono ndi ma pixel 720 pansi pazenera. Makonzedwe ameneŵa amapereka mizere yopingasa 720 pazenera, zomwe ndizo, pang'onopang'ono, zisonyezedwa pang'onopang'ono, kapena mzere uliwonse womwe umatsatiridwa ndi wina.
- 1080i amaimira pixelisi 1,920 omwe amawonetsedwa pawindo lapanyanja ndi ma pixel 1,080 pansi pazenera. Makonzedwe ameneŵa amapereka mizere yokwana 1,080 yopingasa, yomwe inayambanso kusonyeza zina. Mwa kuyankhula kwina, mizere yonse yosamvetseka imawonetsedwa, ikutsatiridwa ndi mizere yonse ngakhale.
- 1080p , imayimira mizere yokwana 1,080 yopingasa yosonyeza sequentially. Izi zikutanthauza kuti mizere yonse ikuwonetsedwa panthawi yomweyo.
- 4K (kapena 2160p) , kumbali inayo, imayimira mizere 3,480 yopingasa yosonyezedwa sequentially. Izi zikutanthauza kuti mizere yonse ikuwonetsedwa panthawi yomweyo. 4K ndi mawonekedwe apamwamba kwambiri a HD.
Zotsatira za DVD Upscaling
Poonekera, pali kusiyana kwakukulu kwambiri kwa diso la ogulitsa ambiri pakati pa 720p ndi 1080i . Komabe, 720p ikhoza kutulutsa chithunzi chowoneka bwino, chifukwa chakuti mizere ndi ma pixel akuwonetsedwa mu chitsanzo chotsatira, osati mu njira ina.
Kukonzekera kumaphatikizapo ntchito yabwino yofananitsa ndi pulogalamu ya DVD yomwe imatulutsidwa kuchokera ku DVD yomwe imasankhidwa kuwonetsera kanema wa TV yomwe imatha kuwonetsa TV, zomwe zimapangitsa kuti mukhale ndi tsatanetsatane wambiri.
Komabe, upscaling, monga pakali pano ikugwiritsiridwa ntchito, sungasinthe zithunzi za DVD zomwe zimakhala zojambula bwino (kapena 4K). Ndipotu, ngakhale kuti upscaling imagwira ntchito bwino ndi ma pixel, monga Plasma , LCD , ndi OLED TV, zotsatira sizimagwirizana nthawi zonse ndi CRT-based HDTVs (mwatsoka palibe zambiri zomwe zikugwiritsidwa ntchito).
Mfundo Zofunika Kukumbukira Zokhudza DVD ndi DVD Upscaling:
- Dewero lililonse la DVD lingagwiritsidwe ntchito ku HDTV. Ngakhale kuti osewera DVD amawoneka bwino akugwirizana ndi chikhalidwe cha pixel chotsatira cha HDTV, mungathe kupeza zotsatira zabwino pa sewero la DVD losasintha (popanda kujambulidwa kapena kupititsa patsogolo) lomwe limagwirizanitsidwa kudzera muzipangizo za HDTV kapena S-Video. : Ma TV ambiri atsopano alibe mavidiyo okhudzana ndi S).
- Ngati muli ndi HDTV (kapena 4K Ultra HD TV), ndi sewero la DVD labwino, mutha kupeza zotsatira zabwino kugwiritsa ntchito kugwiritsira ntchito kanema (kofiira-buluu) pakati pa DVD player ndi HDTV. Kuwonjezera apo, ngati DVD yanu yomwe imasewera ikuyendera bwino, nthawi zonse muzigwiritsa ntchito njirayi pamene mukugwirizanitsa ndi T yopindulitsa kwambiri. Komabe, ngati DVD yanu yomasewera ili ndi upscaling, idzakhala ndi kugwirizana kwa HDMI . Gwiritsani ntchito kugwirizana kwa HDMI kuti mupeze ma DVD omwe amatha kukwaniritsa.
- Vuto la DVD la upscaling ndizongolingalira zapamwamba zowonongeka zochitika. Kuti mupeze zotsatira zenizeni zowonetsera zapamwamba kuchokera pa diski, muyenera kukhala ndi sewero la Blu-ray lomwe limagwirizanitsidwa ndi HDTV kudzera ku mgwirizano wa HDMI ndipo muwone zomwe zili ndi Blu-ray. Mawonekedwe a Blu-ray akuthandizira zowonjezera za 720p, 1080i, ndi 1080p zokhutira.
DVD Yotsutsana ndi Blu-ray
- DVD yosokonezeka (ngakhale phindu lake) sichikugwirizana ndi khalidwe la mtundu wa Blu-ray wachinsinsi. Poyerekeza ndi Blu-ray disc, DVD yotchuka imakhala yosaoneka bwino komanso yochepetsetsa (makamaka kumbuyo) kuposa Blu-ray. Komanso, malinga ndi mtundu, poyang'ana pa Reds ndi Blues, zimakhalanso zovuta kufotokoza kusiyana kwa nthawi zambiri, monga momwe zilili ndi DVD yododometsedwa, zojambula ndi zokhala ndi chizoloŵezi choloweza kufotokoza tsatanetsatane zomwe zingakhale pansi, pamene mitundu yofanana mu Blu-ray ndi olimba kwambiri ndipo mukuwona tsatanetsatane pansi pa mtundu.
- Osewera onse a Blu-ray akhoza kugwira ntchito yamakono a DVD, ngati mpira wa Blu-ray umagwirizanitsidwa ndi HDTV (kapena 4K Ultra HD TV) pogwiritsa ntchito njira yothandizira HDMI.
- Pankhani ya Ultra HD TV, ngakhale kuti DVD yowonjezereka imatha kukwera DVD mpaka 1080p - Ultra HD TV ingavomereze chizindikiro chimenecho ndikuwonjezeranso ku 4K Ultra HD. Ndiponso, osewera ena a Blu-ray amanga-mu 4K upscaling onse a DVD ndi Blu-ray Disc playback. Ngati sewero la Blu-ray silikupereka izi, kachiwiri, 4K Ultra HD TV idzakweza chizindikiro cha 1080p kuchokera pa sewero la Blu-ray Disc kuti 4K.
Zowonjezera Mauthenga Kwa a HD-DVD Player Owners
Mafilimu a HD-DVD anasiya mwalamulo mu 2008. Komabe, kwa omwe angakhale nawo ndi kugwiritsa ntchito HD-DVD player ndi Discs, kufotokozera komweku kolembedwa pamwamba kumagwiranso ntchito pa ubale pakati pa DVD Upscaling ndi HD-DVD monga izo zikuchitira pakati pa DVD upscaling ndi Blu-ray disc.