Yog tias koj txuas ntau yam khoom siv rau koj lub TV, cov khoom xa tuaj los ntawm koj lub satellite, Blu-duab tshav players, lossis cov khoom siv streaming tej zaum yuav tsis muaj qhov kev daws teeb meem zoo ib yam uas koj lub TV tuaj yeem tso tawm. Kev nce qib video yuav tsim nyog los muab qhov zoo tshaj plaws saib rau ntau qhov chaw.
Video Upscaling yog dab tsi?
Video upscaling yog ib txoj kev ua lej sib npaug ntawm pixel suav ntawm cov teeb liab video nkag mus rau cov duab pixel suav ntawm TV lossis video projector. Lub tshuab ua kom nce qib ntsuas cov pixel daws teeb meem ntawm qhov chaw thiab siv kev cuam tshuam los tsim cov pixels ntxiv. Cov kev daws teeb meem uas muaj xws li:
- 1280 x 720 or 1366 x 768 (720p)
- 1920 x 1080 (1080i lossis 1080p)
- 3840 x 2160 lossis 4096 x 2160 (xa mus rau 2160p, UHD, lossis 4K)
- 7680 x 4320 (4320p lossis 8K)
Xav tias 4K Ultra HD TV tau txais thiab tso saib 1080p cov duab daws teeb meem yam tsis muaj kev nce qib. Nyob rau hauv tas li ntawd, cov duab tsuas yog sau ib feem peb ntawm qhov screen. Txhawm rau sau tag nrho lub vijtsam, TV yuav tsum nce cov pixels raws li.
txwv kev nce qib
Cov txheej txheem nce qib tsis hloov qhov kev daws teeb meem qis dua mus rau qhov kev daws teeb meem siab dua. Es tsis txhob, nws yog ib qho approximation. Yog li ntawd, ib daim duab uas yog upscaled kom phim tus naj npawb ntawm pixels ntawm ib lub TV screen yuav tsis zoo ib yam li cov duab ua rau lub siab dua daws teeb meem.
Txawm hais tias kev nce qib yog tsim los txhim kho cov duab zoo ntawm cov teeb liab daws teeb meem qis dua, nws tsis yog ib txwm ua tau zoo. Yog tias lub teeb liab muaj cov khoom siv ntxiv, xws li cov suab video ntau dhau, cov xim tsis zoo, lossis cov npoo hnyav, cov txheej txheem video upscaling yuav ua rau cov duab tsis zoo.
Thaum cov dluab upscaled tso rau ntawm cov ntxaij vab tshaus loj, qhov tsis xws luag tam sim no nyob rau hauv lub hauv paus teeb liab yog magnified nrog rau tag nrho cov duab. Thaum kev nce qib DVD thiab DVD zoo rau 1080p thiab 4K tuaj yeem saib zoo, nce cov teeb liab tsis zoo, xws li VHS lossis cov ntsiab lus streaming tsis tshua muaj, tuaj yeem xa cov txiaj ntsig sib xyaw.
Yuav Ua Li Cas Upscaling Ua Haujlwm hauv Tsev Theatre Devices
Ntau yam ntawm cov khoom tuaj yeem ua qhov nce ntxiv:
- DVD players nrog HDMI cov zis tau tsim-hauv kev nce qib kom DVDs zoo dua ntawm HD lossis 4K Ultra HD TV lossis video projector.
- Txhua tus Blu-duab tshav Disc players tau tsim-hauv video upscaling los muab kev ua si zoo dua ntawm cov qauv DVDs.
- Txhua tus Ultra HD Blu-duab tshav players muab cov yees duab nce ntxiv rau DVD thiab Blu-duab tshav playback.
- HD thiab Ultra HD TVs thiab cov yeeb yaj kiab video muaj cov txheej txheem ua yeeb yaj kiab uas ua cov yeeb yaj kiab nce qib.
Tsis yog txhua tus yees duab nce qib processors raug tsim sib npaug. Txawm hais tias koj lub TV yuav muab video upscaling, koj DVD lossis Blu-duab tshav Disc player yuav ua tau zoo dua. Los ntawm tib lub cim, koj lub TV yuav ua tau txoj haujlwm zoo dua ntawm kev ua yeeb yaj kiab zoo dua li koj lub tsev ua yeeb yam txais tos.
Qee lub TVs thiab video projectors muaj cov txheej txheem nce qib uas ib txwm nyob. Txawm li cas los xij, video upscaling functions ntawm DVD player, Blu-duab tshav player, lossis lub tsev ua yeeb yam tuaj yeem raug tua. Kev ua haujlwm nce qib ntawm cov cuab yeej siv tau hloov pauv cov yees duab upscaling ntawm TV lossis video projector.
Video Upscaling thiab Home Theatre Receivers
Ntxiv rau qhov ua qhov hloov pauv, lub tshuab ua suab nrov, thiab lub suab nrov, ntau lub tsev ua yeeb yam tau txais 4K upscaling built-in. Qee zaum, cov neeg txais khoom muab cov duab kho kom zoo nkauj zoo ib yam li qhov koj tuaj yeem pom hauv TV lossis video projector.
Kev ua yeeb yaj kiab hauv tsev ua yeeb yaj kiab los ntawm plaub hom:
- Video pass-through only: Video los ntawm cov khoom txuas nrog rau lub receiver raug xa mus los ntawm lub receiver mus rau lub TV yam tsis muaj video upscaling los yog ua.
- Analog to HDMI conversion: Analog signals converted to digital signals so that the analog signal can send from the receiver to the TV via HDMI cable. Txawm li cas los xij, tsis muaj kev ua yeeb yaj kiab lossis kev nce qib ntxiv.
- 1080p rau 4K upscaling: Txhua qhov chaw 1080p (Blu-duab tshav lossis streaming) tau nce qib ntawm 1080p rau 4K kom tau txais txiaj ntsig zoo dua thaum txuas nrog 4K UHD TV. Analog rau 1080p lossis 4K upscaling tej zaum yuav los yog tsis muab.
- Analog thiab digital video upscaling: Analog thiab digital video signals tuaj yeem nce mus rau 720p, 1080p, lossis 4K yog xav tau.
Qee lub high-end 1080p, 4K Ultra HD, thiab 8K TVs muab qee cov xim ntxiv lossis lwm yam kev ua duab tsis hais txog lub teeb liab daws teeb meem. Piv txwv li, nrog rau Ultra HD Blu-duab tshav Disc hom, nrog rau qee qhov 4K streaming qhov chaw, cov ntsiab lus yuav muaj HDR thiab cov ntaub ntawv xim dav-gamut uas TV yuav tsum ua ua ntej tso cov duab.
