Yuav ua li cas yog HD-resolution?

HD video yog ib tug siab txhais cov ntaubntawv povthawj siv nrog ntau dua kev daws teeb meem tshaj tus txheej txheem. Nyob rau hauv cov ntaub ntawv no, muaj yog tsis muaj tseeb txhais txog HD. Yuav ua li cas yog kev daws teeb meem sau raws nkaus Ii mus rau nws, nyob ntawm seb lub cheeb tsam. Piv txwv li, nyob rau hauv North America feeb tej video uas muaj ntau tshaj li 480 txoj kab, nws suav hais tias high-txhais cov ntaubntawv povthawj siv. Nyob rau hauv Teb chaws Europe, nws yuav tsum tau ntau tshaj li 570 xws units. Niaj hnub no, txawm li cas los, cov nuj nqis muaj ntau.

Ntaubntawv povthawj siv nrog HD-daws teeb meem, tej zaum yuav muaj ntau qhov chaw: hauv av, los yog ncaj tshaj tawm hauv xov satellite, cov cable TV, discs (CD), cov koob yees duab, Internet cov ntsiab lus, thiab cov lus tseeb ntawm cov kev ua si consoles. Feem ntau cov computers yog tau mus ua si ib tug yees duab nrog VGA technology, DVI thiab / los yog HDMI.

Kho qhov muag txheem Blu-txoj sab ci disc tej zaum yuav muab txaus qhov chaw khaws cov ob peb teev ntawm high-txhais cov ntaubntawv povthawj siv. Cov ntau yam thiab DVD (nrog 4.7 GB los yog 8.5 GB ob mog cov ntaubntawv povthawj siv) yog zoo tshaj plaws ua si nyob rau hauv lub vab tshaus uas yog me dua 36 inches (91 cm), vim hais tias lawv muaj peev xwm tsis yog feem ntau txhawb siab daws teeb meem HD (neej ntawd hais niaj hnub no tus qauv) .

Nyob ntawm seb cov muaj bandwidth thiab tus naj npawb ntawm qhov chaw pom hom ntawv rau cov kis ntawm cov video yog tog twg los 720p / 24 ntas ib ob, los yog 1080 p / 24. Ib txhia lub teb chaws thiab lwm yam qauv - yog siv tau nyob rau 25 los yog txawm 30 ntas ib ob. Yav tas los, thaum uas siv cov video tapes thov 480 los 576 pixels. Cov ntaub ntawv yuav tsum hloov dua siab tshiab rau hauv ib lub hom 720 p, tab sis qhov no formatting yuav distort ib daim duab los yog yuav tsum tau filtering uas ua tau thiaj li qhov zoo tshaj ntawm cov zis teeb liab. Video hom HDTV twb muaj ib tug HD-daws teeb meem ntawm 720 los yog 1080 p.

Ua raws li cov kev tsis, lub hom 720 yog ib tug ntau tseeb thiab ceev ceev, vim hais tias thaum playback ntas maj loaded. Standard 1080, nyob rau hauv zoo, siv qhaib PP, thiab yog li yuav txo tau cov kev ceev ntawm uploading video. Vim li no, ib tug daws teeb meem ntawm 720 p, yog feem ntau siv los mus download tau yeeb yaj duab los ntawm hauv Internet los yog rau saib nyob rau hauv Web site, 1080 p - rau disc burning nyob rau hauv Blu-txoj sab ci technology.

Number of video streaming muaj rau hauv internet saib los yog daus nyob rau hauv Internet, yog loj hlob txhua txhua hnub. Txawm tias muaj tseeb hais tias cov ntaub ntawv yog pom zoo raws li high-txhais cov ntaubntawv povthawj siv, koj yuav tsis cam hais tias lawv muaj ib tug HD-daws teeb meem. Vim muaj zog compression thiab duab nthuav dav uas ua los ntawm cov tawm tswv yim, lawv zoo yog tsawg thiab feem ntau ua tsis tau zoo rau DVD-Video.

Nyob rau hauv tas li ntawd, ib tug zuj zus tooj ntawm manufacturers muaj cov khoom ntawm keb soj ntsuam cov koob yees duab nrog video ntaubntawv povthawj High Lus Txhais. Nyob rau hauv cov ntaub ntawv no, lub HD-daws teeb meem yog tsim nyog vim hais tias cov kev tshwm sim kaw ib video koob yees duab nyob rau hauv tej rooj plaub tej zaum ua si ib tug tseem ceeb luag hauj lwm. Qhov no technology kom zoo xim thiab ncej nqi. Txawm li cas los, koj yuav tsum nco ntsoov hais tias cov yeeb yaj duab yuav tsum tau ib tug tsim nyog tus nqi ntawm qhov chaw cia.

Niaj hnub no, ib co kev ua si consoles txhawb qhov kev ua si nrog hauv daim duab nyob rau hauv 1080 p. Qhov no tseem tau tam sim ntawd soj ntsuam zoo. Nyob rau hauv tas li ntawd rau kev txhim kho lub nrig txog kev pom zoo ntawm qhov kev ua si, cov neeg siv yuav kuj upload los yog kis HD-movies thiab video clips ntawm PlayStation Network. PlayStation 3 yuav tau ua si rov qab Blu-txoj sab ci, HD-uas muaj cov ntaub ntawv.