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SD vs HD

Nta, feem ntau camcorders cia cov neeg siv yuav sau yeeb yaj duab SD thiab HD. Yog ib tug neeg tsis xav txuag tau nyiaj rau lub HD camcorder los sis TV, yog vim hais tias nws tsis tau pom SD thiab HD sib txawv. Nplooj ntawv no yuav ua kom paub koj tej theem pib paub txog SD thiab HD camcorder.

Txheem txhais (SD)

> 16:9 widescreen duab
> Paub daim duab zoo - DVD zoo zoo li
> MPEG cov lub tso suab suab - CD zoo zoo li
> Ib co kev pab cuam txhais Standard yog enhanced nrog Dolby Pro Logic surround suab
> Standard txhais broadcasts kis ntawm txhua lub sij hawm - 24 teev tauj ib hnub, 7 hnub hauv ib lub lis piam
> Ntxiv raws thiab tej koob yees duab views yog tshaj tawm hauv xov hauv Standard txhais

SD duab rooj Yog SD duab daws teeb meem:-576i (576 txoj kab interlaced)

Siab txhais (HD)

> 16:9 widescreen duab
> HD daim duab kho - siab muaj duab zoo (thaum pub rau ib cov zaub HD)
> MPEG cov tso suab suab thiab, nyob rau xaiv cov kev pab cuam, Dolby cov suab
> Ib co broadcasters yog tam sim no kis ib tug xov tooj ntawm cov kev pab cuam txhais siab
> Rau lub yim hli ntuj xyoo 2002 tsoom fwv tshaj tawm nws yuav nrhiav kev hloov txhua tus broadcaster HD nyiaj npaj rau qhov yuav tsum tau annualized 1040 teev. Cov nqi uas yuav commence ntawm 1 lub Xya hli ntuj xyoo 2003 mainland peev lub zos, thiab tsis muaj ua ntej xyoo 2005 rau lwm thaj chaw. Cov kev pab cuam nyob hauv HD yuav kuj tau ib txhij tshaj tawm hauv xov hauv SD.
> Ib HD-DR yuav tau txais SD broadcasts, kom niam lub HD tuav tau SD transmissions cov thaum HD
broadcasts yeej tsis tau kis tus kab mob.

Txheem txhais zaub uas yuav kho tau:

Hom ntawv video (WxH) Lub npe Pixel nam piv (W:H) (txuj 4:3) Pixel nam piv (W:H) (Anamorphic 16:9) Hauj lwm lawm
640 x 480   4:3   Siv tau siv rau hauv YouTube
720 × 576 576i 5:4 64:45 Siv rau hauv cov NPAWG D1/DV (ITU-R 601)
704 × 576 576p 12:11 16:11 Siv rau hauv cov NPAWG EDTV
720 × 480 480i 8:9 32:27 Siv rau DV NTSC
720 × 486 480i 8:9 32:27 Siv rau D1 NTSC (ITU-R 601)
704 × 480 480p 10:11 40:33 Siv rau EDTV NTSC

Txhais zaub uas yuav kho:

Daws teeb meem (W × H) Pixels Nam piv Hom ntawv video Hauj lwm lawm Bitrate (Mbps) Cia (MB) rau 1 min
1024 × 768 786,432 16:9 (uas tsis yog-xwmfab pixels) 720p/XGA Siv rau PDP HDTV lus nrog cov square pixels 135 1012
1280 × 720 921,600 16:9 720p-HDTV txheem hom Thawj kauj ruam mus tiag 1080p HD, saib nram qab no (HD) 158 1187
1440 × 1080 1,555,200 16:9 1080i Siv rau ib feem ntau cov HDTVs, thiab yog 'ib nrab' ntawm 1080p vim nws cov interlacing (i) 266 xyoo 2002
1280 × 1080 1,382,400 16:9 (uas tsis yog-xwmfab pixels) 1080p Siv rau hauv cov lus PDP HDTV (tag nrho HD, HD npaj 1080p) 237 1780
1920 × 1080 2,073,600 16:9 1080p-HDTV txheem hom Siv hom HDTV yees (tag nrho HD, HD npaj 1080p) 356 2670
3840 × 2160 8,294,400 16:9 2160p DCI xinesmas 4k txheem hom ntawv (4096 × 2160) Plaubâ € ¦ HDTV, (muaj yog tsis npaj HD 2160p plaubâ € ¦ HDTV hom) 1424 10679

Daim duab HD rooj HD duab daws teeb meem yuav muab ib los yog ntau tshaj ntawm cov nram no:
576p (txoj kab 576 nhyav)
720p (720 txoj kab hnyav)
1080i (1080 txoj kab interlaced)

sd vs hd

Tej hom kev tshuaj ntsuam camcorders
Txheem txhais Canon FS10
Canon FS100
Tig video ultra series
JVC GZ-MG630
JVC GZ-MG680
JVC GZ-MS120
Panasonic NV-GS330
Panasonic SDR-S26
Siab txhais Canon HF10
Canon HF100
Canon HV30
Panasonic HDR-SD20
Sony HDR-HC9
Sony HDR-XR200

Hais txog yam khoom muaj lus nug? Hais ncaj qha tuaj rau peb pab neeg yug >>

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