Ntau lub koob yees duab ntawm kev ua lag luam tau cim nrog cov koob yees duab siab, cov koob yees duab txhais tau hais,so wlub kaus mom yog qhov txawv ntawm SD thiab HD koob yees duab? Los ntawm kev daws teeb meem ntsug video thiab pixel sib txawv, muaj qhov sib txawv pixel, thiab nws yog lub koob yees duab siab txhais ntawm 96W thiab siab dua.
Txhais
HD Streaming yog dab tsi?
Lub sij hawm HD stands rau High Definition, thiab HD Streaming hais txog HD zoo video daws teeb meem streamed hauv internet rau playback. Nws tuaj yeem ua tiav siv ntau hom video sib txawv, suav nrog MPEG lossis cov yeeb yaj kiab streaming du.
HD streaming video cov ntsiab lus yuav muab koj cov ntsiab lus meej thiab nthuav dav dua li SD video daws teeb meem, feem ntau pom hauv YouTube thiab lwm lub vev xaib. Koj yuav pom tsawg dua pixelation hauv cov ntsiab lus video siab vim tias nws muaj ob zaug ntau pixels ib thav duab (1920 × 1080) dua li cov qauv txhais lus ntawm 1280 × 720. Cov duab zoo dua no kuj muaj cov xim zoo dua qub thiab ua kom zoo dua vim lawv cov ncej nrawm dua.
Video ntsug daws teeb meem
1.SD yog ib hom video nrog lub cev daws teeb meem hauv qab 720p (1280 * 720). 720p txhais tau hais tias qhov kev daws teeb meem ntsug ntawm cov yees duab yog 720 kab ntawm kev soj ntsuam zoo. Tshwj xeeb, nws yog hais txog "tus qauv txhais" video tawm tswv yim xws li VCD, DVD, thiab TV cov kev pab cuam nrog kev daws teeb meem txog 400 kab, uas yog, tus qauv txhais.
2.Thaum qhov kev daws teeb meem ntawm lub cev nce mus txog 720p lossis siab dua, nws yog hu ua high-definition (Lus Askiv qhia High Definition) hu ua HD. Hais txog cov qauv kev txhais lus siab, muaj ob qhov kev lees paub thoob ntiaj teb: cov yees duab ntsug daws teeb meem tshaj 720p lossis 1080p; video nam piv yog 16:9.
High Definition (HD) video yog tsis muaj dab tsi tshiab nyob rau hauv lub ntiaj teb no ntawm cov neeg siv khoom electronics qhov twg muaj ib tug txiav txim siab hloov los ntawm Standard Definition (SD) mus rau qhov ntau visually impressive HD.
Hauv kev soj ntsuam kev lag luam, kev hloov pauv tau qeeb dua tab sis nws tseem yog qhov tseem ceeb, tsis muaj kev zam. Txawm hais tias feem ntau ntawm cov txheej txheem tshuaj xyuas thiab cov koob yees duab tam sim no muaj nyob rau hauv kev ua lag luam tseem yog Cov Lus Txhais, cov kws tshaj lij kwv yees tias HD yuav yog cov thev naus laus zis tseem ceeb los ntawm 2020.
Cov duab xim muaj xws li cov dots me me hu ua pixels, nrog rau kev daws teeb meem hais txog tag nrho cov pixels hauv video lossis duab. Lub ntsiab lus rau SD video pib ntawm 240p thiab xaus ntawm 480p, thaum 1080p daws teeb meem yog tag nrho-lub zog HD (nrog txhua yam saum toj no suav tias yog Ultra-HD).
Cov ntaub ntawv txuas ntxiv:
Lub koob yees duab ua haujlwm li cas:
1. Lub koob yees duab yog tsim los ntawm lub lens, tus tuav lub lens, capacitor, resistor, infrared lim (IP Filter), sensor (Sensor), Circuit Court board, daim duab ua chip DSP thiab cov khoom siv zog thiab lwm yam khoom siv.
2. Muaj ob hom sensors, ib qho yog charge-coupled sensor (CCD) thiab lwm yam yog hlau oxide conductor sensor (CMOS); Circuit boards feem ntau yog luam tawm Circuit Boards (PCB) los yog hloov tau yooj yim circuit boards (FPC).
3. Lub teeb pom kev zoo nkag mus rau lub koob yees duab los ntawm lub lens, thiab tom qab ntawd lim tawm lub teeb infrared nyob rau hauv lub teeb nkag mus rau lub lens los ntawm IR lim, thiab tom qab ntawd mus txog lub sensor (sensor), uas hloov cov teeb liab optical rau hauv lub teeb liab hluav taws xob.
4. Los ntawm lub internal analog/digital converter (ADC), cov teeb liab hluav taws xob hloov mus rau hauv cov teeb liab digital, thiab tom qab ntawd xa mus rau cov duab ua chip DSP rau kev ua, thiab hloov mus rau RGB, YUV thiab lwm yam kev tawm tswv yim.
Post lub sij hawm: Mar-03-2023
