Yuav ua li cas los xaiv ib lub Yees duab Video Sib Xeem

Yuav ua li cas xaiv ib lub koob yees duab kev sib tham video

Video conferencing koob yees duab, raws li cov khoom siv tseem ceeb tshaj plaws rau kev sib tham video, ua si ib qho tseem ceeb hauv kev xaiv cov xov tooj video conferencing hardware. Videoconferencing koob yees duab, raws li ib lub rooj sib tham txog kev sib tham txog kev ntaus sab nraud, muaj kev sib txawv ntawm lwm cov koob yees duab hauv tsev. Qhov tsis muaj peev xwm feem ntau txiav txim siab cov khoom ntawm cov koob yees duab video sib tham. Cia peb pib nrog cov tsis muaj suab yees duab ntau lub koob yees duab, thiab txheeb xyuas cov ciaj ciam uas yuav tsum tau them rau thaum mloog kev sib tham video koob yees duab:

1, lub lens

Lub lens yog ib qho tseem ceeb ntawm kev sib tham video yees duab. Cov duab ntawm cov duab ua rau cov ntsiab muag ntawm cov koob yees duab yees duab ntawm lub khw muag khoom hnub no tuaj yeem raug tso npe mus rau CCD thiab CMOS. Qhov kom zoo dua ntawm CMOS yog tias tus nqi qis tshaj qhov ntawm CCD, thiab kev siv zog ntau dua. Txawm li cas los xij, vim yog siv lub tshuab tsis paub siv, nws tsis tau siv ntau, tab sis qhov paub zoo tshaj plaws yuav txiav txim siab txog nws txoj kev sib yuav yav tom ntej. Tam sim no, qhov luaj li cas ntawm CCD sensor feem ntau yog 1/3 nti los sis 1/4 nti. Nyob rau ntawm tib lub rooj sib hais, nws yog qhov zoo dua los xaiv ib qho loj dua.

Txij li thaum lub koos phis yees duab ntawm lub koob yees duab suab paj nruag muaj lub caij nyoog loj nrog rau lub koob yees duab ntawm CCD, tus neeg siv tsis tas yuav xaiv ib lub koob thaij duab kom tsis txhob siv qhov khoom siv.

2, focal ntev

Lub focal ntev yog lub caij nyoog ntawm lub taw tes uas yuav tau kho thiab lub koob yees duab. Lub focal ntev yog loj, thiab lub caij nyoog ntawm photographing yuav deb. Raws li ib txwm muaj, lub koob yees duab sablaj video nrog kev ua kom tsau siab yuav qis dua lub koob yees duab nrog qhov tseem ceeb. Qhov loj dua lub focal ntev, qhov tob rau ntawm cov lus qhia yuav pom tau los ntawm lub koob yees duab, thiab tus me dua lub focal ntev, closer lub tswv yim yuav.

3, qhov daws teeb meem ntawm daim duab

Daws teeb meem ntawm daim duab yog lub peev xwm ntawm lub koob yees duab los daws cov duab. Nws muaj qhov feem xyuam rau lub luag haujlwm ntawm daim duab. Qhov kev daws teeb meem tuaj yeem muab faib ua ob hom: duab daws teeb meem thiab kev yees duab, uas yog qhov kev daws teeb meem thaum lub sijhawm qub thiab kev daws teeb meem thaum txav cov duab raug. Nyob hauv kev siv tswv yim siv video, qhov daws teeb meem ntawm daim duab yog feem ntau siab tshaj qhov daws teeb meem ntawm kev yees duab.

Muaj ntau yam kev txiav txim siab uas tau muab los ntawm video tham txog cov koob yees duab ntawm lub khw kuj sib txawv, yog li ntawd them nqi rau lub sijhawm ntawm kev yuav khoom. Qee qhov kev txiav txim siab hais txog qhov kev daws teebmeem uas cov khoom siv tau mus txog kev siv software, tab sis lawv paub qhov txawv ntawm cov khoom siv kho mob. Tus nqi sib piv tseem tseem muaj qee lub caij nyoog.

4, tus sau pixels

Tus nqi pixel sau los ntawm lub koob yees duab yog lub hom phiaj tseem ceeb uas cuam tshuam qhov zoo ntawm lub koob yees duab kev sib tham video, thiab tseem yog ib qho tseem ceeb qhia txog kev txiav txim siab zoo. Pixel qhov tseem ceeb ntawm cov khoom tau muab tso rau hauv cov hnub qub yog feem ntau ntawm 100,000. Vim cov ntsiab lus tsis tshua muaj, lawv yog tam sim no ntawm qhov kev ntsuam xyuas, thiab cov neeg siv yuav tsum them nyiaj rau lawv thaum nriav. Txawm li cas los, nws tsis yog qhov yuav tsum xav txog qhov pixel tus nqi blindly. Qhov ntau dua tus nqi pixel, muaj zog dua qhov kev muaj peev xwm ntawm cov khoom kom parse cov duab, thiab ntau dua qhov peev xwm los ua cov ntaub ntawv ntawm lub computer.

Yog tias cov khoom siv hauv lub computer tsis siab txaus, siv cov khoom siv pixel nce siab tuaj yeem ua rau ncua sijhawm hauv daim duab, thiab cuam tshuam rau kev sib tham ntawm kev sib tham video. Yog li ntawd, cov neeg siv yuav tsum nthuav qhia lawv tus kheej cov kev xav tau thaum tab tom yuav khoom, thiab txhob txwm muag tsis pom kev.

5, kis tau tus mob

Nws tsis txaus sau cov duab zoo los ntawm video tham txog cov koob yees duab. Peb tseem xav tau kev pabcuam kom muaj kev sib tsuam sib txuas mus rau cov ntaub ntawv khaws tseg. Yog tias qhov kev siv bandwidth siv los ntawm peb tsawg dua, cov ntaub ntawv yuav raug thaiv los yog khoo dua. Nyob rau hauv kev xyaum ntawm video conferencing koob yees duab, yuav muaj ib qho loj ntawm cov ntaub ntawv xa xov, uas yuav tsum tau them nyiaj rau thaum nriav. USB interface khoom tau dav txais rau ntsaws thiab ua si thiab yooj yim ntawm kev siv. Lub koob yees duab sablaj video siv USB interface thiab tuaj yeem ntsaws thiab ua si. Txawm li cas los, vim hais tias qee qhov cuab yeej siv qis dua version USB, kis tau tus kab mob txuas tsis tuaj yeem hloov cov ntaub ntawv loj dua. Yog li, peb yuav tsum luam tawm lub USB version thaum peb yuav. Thiab kis bandwidth.