Tsev > Exhibition > Ntsiab lus

Taw qhia txog kev thev naus laus zis tshuab

Jul 02, 2018

Taw qhia txog kev thev naus laus zis tshuab

1. Dab tsi yog lub tshuab thev naus laus zis?

    Stereoscopic zaub technology yog ib qho ntawm txoj kev paub txog kev sib raug zoo nyob rau hauv VR virtual reality. 3D stereoscopic zaub yuav tso tau qhov tob, theem thiab qhov chaw ntawm daim duab, thiab tus neeg soj ntsuam tuaj yeem to taub qhov tseeb cov duab ntawm cov duab ncaj qha, thiaj li tau txais kev nkag siab ntau ntxiv ntawm cov ntaub ntawv ntawm daim duab lossis cov ntsiab lus ntawm cov duab.
Lub tswv yim zoo tshaj yuav tsum yog indistinguishable nyob rau hauv cov nqe lus ntawm qhov zoo, clarity, thiab scope, tab sis lub tshuab tam sim no tsis txhawb qhov kev pom ntawm qhov kev kawm siab ntawm kev muaj tiag. Nrog rau txoj kev loj hlob ntawm Cameron tus "Afanda" thaum xyoo 2009, kev siv tshuab thaij duab (three-dimensional display technology) tau dhau los ua ib lub tshuab kub tshaj plaws tam sim no.

2. Lub hauv paus ntsiab lus ntawm 3D stereoscopic zaub technology

     Cov ntsiab cai ntawm 3D cov qauv duab stereoscopic yog muaj nyob hauv daim duab. Daim duab no qhia tau hais tias qhov pom ntawm qhov muag ntsia pom ntawm ob lub qhov muag, uas yog sib npaug ntawm ob lub qhov muag tsau rau qhov nrug. Cov tub ntxhais kawm nyob deb li deb (IPD) yog qhov sib txawv ntawm cov tub kawm ntawv ntawm ob lub qhov muag. Qhov sib txawv ntawm qhov muag ob yog qhov ua rau lub qhov muag tsis pom kev hauv stereoscopic. F yog ib qhov chaw nyob ntawm tus kwv B nyob ze ntawm tib neeg qhov muag. Qhov pom ntawm txoj cai qhov muag pom tau hais tias F taw yog txawv ntawm txoj hauj lwm pom, uas yog lub stereoscopic parallax. Cov tib neeg lub qhov muag kuj siv tau qhov no kom pom qhov ncaj nruab nrab thiab qhov tob ntawm cov khoom. Qhov no yog qhov pom kev ntawm peb hom ntawm tib neeg, yog li ua cov ntaub ntawv qhia peb qhov chaw ntawm ib puag ncig.


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Lwm txoj kev uas pom ntawm tib neeg lub qhov muag yog mus saib ntawm qhov chaw F uas nyob ze. Lub sij hawm no, lub kaum sab xis ntawm lub dav hlau kho qhov muag ob ntawm ob lub qhov muag yog qhov sib thooj nyob hauv daim duab. Vim tias qhov muag pom ntawm ob lub qhov muag dhau ntawm point F, F ntsiab lus yog qhov chaw taw tes rau hauv ob qhov pom. Nyob rau ntawm lub sij hawm no, parallax yuav tsum sib npaug nrog F, uas yog farther or closer los ntawm tib neeg qhov muag. Cov tib neeg lub qhov muag kuj siv tau qhov no kom pom qhov ncaj nruab nrab thiab qhov tob ntawm cov khoom.
Tam sim no, cov khoom ntawm 3D stereoscopic tshuab hauv khw yog tsom rau ob txoj kev hloov ntawm qhov muag thiab tsis muaj qhov muag liab qab. Cov khoom siv tseem ceeb yog cov kua siv lead ua kua, ntshav muag, cov zaub mov xa khoom dav hlau, cov khoom siv hauv tsev thiab lwm yam.

3. Muab tso tawm duab tso tawm hauv duab

Lub tshuab 3D stereoscopic cov cuab yeej muab faib ua peb txoj hauv kev: qhov muag liab stereoscopic zaub, cov khoom txav ntawm lub tshuab txav, thiab hnav tsom iav. Cov duab nram qab no yog qhia raws li.
Lens zaub tshuab
Lub lens nto yog ib qho ntawm cov cylindrical lens, uas yog siv los tsim kom muaj ib qho duab tsis zoo tuaj los ntawm kev cob qhia ob yam duab sib txawv rau lawv cov saib xyuas sub-pawg. Tus duab yog tsim hauv thaj chaw sub ntawm ntau cov ces kaum nyob rau hauv pem hauv ntej ntawm lub lens. Thaum tus neeg saib xyuas lub taub hau nyob hauv qhov chaw zoo, txhua qhov muag nyias pom nyias cov cheeb tsam, thiab cov duab sib txawv tau txais kom tau txais cov teeb meem ntawm binocular parallax.


Lens tsim yuav tsum tau muaj kev daws teeb meem loj rau kev pom kev loj. Ob qhov kev pom ntawm yuav tsum tau pom nyob rau ntawm lub sijhawm, thiab daim duab yog hlais thiab muab tso rau hauv lub qab ntsug ntawm lub lens. Tus nab npawb ntawm cov cheeb tsam pom muaj kev txwv los ntawm qhov tsis tseem ceeb ntawm kev ua cylindrical lo ntsiab muag. Lens distortion thiab diffraction ntawm lub teeb txo qhov kev taw qhia ntawm lub lens, yog li cov duab uas tau teem rau tom qab kev tshuaj ntsuam yuav tawg tsis yog thaum uas tig mus sab nrauv tab sis nyob rau hauv ib lub qhov muag. Qhov no dispersal txwv tus naj npawb ntawm sub regions sib txawv los ntawm txhua lwm. Lwm qhov teeb meem tseem ceeb ntawm lens zaub yog tias tus duab ntxig rov tom qab yuav tsum tau mus ua ke rau lub seam lossis lens, txwv tsis pub cov duab thooj av hauv cheeb tsam yuav tsis ua rau qhov tsim nyog subarea.

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Parallax baffle zaub technology
Lub tsho khauj khauj khaum yog ib lub phaj ntsug rau ntawm lub xub ntiag. Nws thaiv txhua qhov ntawm qhov screen. Cov nyhuv ntawm parallax baffle zoo ib yam li ntawm daim iav ntsej muag. Qhov txawv yog hais tias nws thaiv ib feem ntawm cov zaub nrog lub thom khwm, es siv lub lens coj cov duab npo. Qhov kev tshuaj ntsuam qhia ob qho dluab, txhua tus uas tau muab faib ua txoj kab ntsig. Qhov tshwm sim ntawm lub vijtsam hloov mus rau sab laug thiab sab xis qhov muag, thiab txhua qhov muag tsuas pom nws lub voj.
Parallax baffle zaub feem ntau tsis siv vim tias muaj ntau qhov tsis zoo. Ua ntej, cov duab uas tso tawm kom pom yog tsaus ntuj nti, vim cov nplaum nplaum feem ntau ntawm lub teeb nyob hauv txhua qhov muag. Ntxiv mus, rau qhov dav me me dav, lub teeb diffusion nrog khoob tej zaum yuav yog ib qho teeb meem vim hais tias lub teeb scattering. Tsis tas li ntawd, nws yuav tsum muab faib ua tej daim kab xev.

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Daim ntawv teev cov khoom tso tawm
Daim ntawv teev cov nplais ntawd tseem hu ua multi board display. Nws muaj ntau txheej duab ob-seem (slicing) rau daim ntawv peb-seem. Cia li zoo li lub voj voog ntawm LED, lub dav hlau duab zoo siab yuav tsim, thiab lub dav hlau tig ntawm LED tuaj yeem tsim lub cev duab. Daim iav tsiv tsiv yuav tsum tau tsiv mus nyob rau hauv ib lub sijhawm siab, yog li yuav siv lub lens zoom. Feem ntau, 30Hz lub suab teebmeem yog siv los tshuab pa diaphragm. Thaum daim iav vibrating, lub sijhawm ntev hloov, thiab qhov kev saib xyuas saib cov ntaub ntawv tus duab hauv lub truncated Pyramid saib ntim. Lub iav tsis tu ncua hloov nws cov magnification kom cov duab scanned dhau lub sij hawm hloov nws qhov tob tsis tu ncua.

Txoj kab hlais txoj moj khaum qhia txog lub teeb ntsa uas ua rau cov khoom pob khoom, thaum lub khauj khaum tsis tau muab zais. Qhov no tej zaum yuav zoo rau cov ntaub ntawv teev cov ntaub ntawv thiab cov qauv teeb meem. Tab sis nws tsis haum rau cov duab thiab cov duab tiag nrog rau sab hauv. Kev nce lub taub hau mus rau qhov chaw nkaum saum npoo yuav raug kwv yees li ntawm tus neeg pom hauv cov kauj ruam. Txawm li cas los xij, txhua qhov chaw tsis muaj teebmeem, vim tias ob lub qhov muag pom tau los ntawm ntau qhov chaw.

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Cov yeeb yam tho sab hauv stereoscopic
Los ntawm kev siv lub ntsiab cai ntawm cov khoom tso suab, ib co tuam ntxhab tau muab cov ntaub ntawv tso cai rau koj tus kheej muag. Los ntawm kev txhim kho lub vijtsam me me ua ntej ntawm txhua lub qhov muag ntawm tsom iav, txhua daim duab me ntsis txawv tam sim no ua rau lub tsho qhov muag, uas tsim ib daim duab peb sab, zoo ib yam li ob meters. Vim hais tias lub lens yog hauv cov tsom iav, nws tsis tas siv qhov chaw ntxiv, thiab 3D dluab tuaj yeem nqa ntawm txoj siv.


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Stereoscopic zaub tshuab hauv qhov system
Hauv feem ntau qhov kev siv cuab yeej hauv virtual los sis kev tso duab thiab tso tawm pom, stereoscopic tsom iav siv los saib cov dluab laug thiab zoo thaum siv cov kab mob hauv nruab siab, thiab cov duab stereoscopic thaum kawg tau los ntawm kev kuas nyob rau hauv lub paj hlwb cortex. Cov yeeb yam tsis tuaj yeem tshawb kos duab stereoscopic thiab cov duab tso tawm. Cov tshuab no tsuas yog siv ib lub teeb ntawm tsom iav los ua ib qho kev pom zoo ntawm cov khoom siv stereoscopic, yog li muab tus neeg siv qhov qis qis tshaj plaws thiab nws xis nyob. Nyob rau hauv kev txwv ntawm xis saib ntau, qhov chaw zoo li qub thiab kev daws teeb meem ntawm cov vijtsam thiab daim duab tso saib seb qhov kev ncua deb ntawm tus neeg siv thiab lub dav hlau dav hlau.