Dab tsi yog ib qholub lens qhov muag ntsesLub lens Fisheye yog lub lens dav dav heev uas muaj ob yam ntxwv tseem ceeb: qhov ntev ntawm lub lens luv thiab qhov pom dav. "Fisheye lens" yog nws lub npe dav.
Yuav kom pom tau lub kaum sab xis ntawm lub lens zoo tshaj plaws, lub lens pem hauv ntej ntawm lub lens no luv heev thiab nthuav mus rau pem hauv ntej ntawm lub lens ua ib daim duab parabolic, uas zoo ib yam li lub qhov muag ntawm ntses, yog li ntawd lub npe "fisheye lens". Tib neeg kuj hu cov duab uas nws thaij "fisheye images".
Lub lens fisheye loj heev, thiab daim duab uas nws thaij tau muaj cov ntaub ntawv nplua nuj heev, yog li nws tsis tas yuav tig lossis luam theej duab thiab tuaj yeem ua haujlwm ntsia ntsoov. Ua ke nrog qhov zoo ntawm qhov me me thiab kev zais zoo, lub lens fisheye muaj txiaj ntsig zoo rau kev siv hauv ntau qhov chaw.
1.Lub hauv paus ntsiab lus ntawm fisheye lens
Thaum lub qhov muag tib neeg tig los saib, lub kaum sab xis tuaj yeem nthuav dav mus txog 188 degrees. Thaum lub qhov muag tsis tig, lub kaum sab xis pom zoo tsuas yog 25 degrees xwb. Zoo ib yam li lub lens ntawm lub koob yees duab ib txwm muaj (lub kaum sab xis pom 30-50 degrees), lub lens ntawm lub qhov muag tib neeg kuj yog oblate, nrog lub kaum sab xis pom nqaim, tab sis nws tuaj yeem pom tej yam nyob deb dua.
Tsis zoo li lub qhov muag tib neeg, lub lens hauv lub qhov muag ntses yog lub voj voog, yog li txawm hais tias nws tsuas pom cov khoom ze xwb, nws muaj lub kaum sab xis loj dua (lub kaum sab xis saib 180-270 degrees), uas txhais tau tias nws tuaj yeem pom dav dua.
Lub hauv paus ntsiab lus ntawm kev thaij duab ntawm lub lens fisheye
Cov iav dav dav ib txwm siv txoj kab ncaj kom txo qhov kev cuam tshuam.Cov iav qhov muag ntses, ntawm qhov tod tes, feem ntau siv cov qauv tsis yog linear. Cov khoom siv lub cev ntawm cov qauv no txiav txim siab nws cov yam ntxwv ultra-wide-angle uas loj dua li cov ntawm cov iav ib txwm muaj, tab sis nws kuj ua rau muaj kev tsis zam "barrel distortion."
Uas yog, nyob rau hauv tib cheeb tsam, qhov ntau ntawm cov ntaub ntawv nyob ze ntawm qhov chaw ntawm daim duab fisheye yog qhov loj tshaj plaws thiab qhov deformation yog qhov me tshaj plaws, thaum lub vojvoog nce ntxiv, qhov ntau ntawm cov ntaub ntawv txo qis thiab qhov deformation maj mam nce ntxiv.
Kev cuam tshuam ntawm lub qhov muag yog rab ntaj ob sab: hauv kev tshawb fawb txog kev tshawb fawb, muaj ntau yam kev siv zog los kho nws kom tau txais cov duab pom dav dav thaum txo cov duab cuam tshuam, thaum nyob rau hauv cov teb xws li kev kos duab zaj duab xis, kev cuam tshuam ntawm lub qhov muag tuaj yeem ua rau cov duab zoo nkauj thiab tshwj xeeb.
2.Keeb Kwm ntawm Fisheye Lens
Keeb kwm ntawm cov iav fisheye tuaj yeem taug qab rov qab mus rau thaum ntxov xyoo pua 20th. Xyoo 1906, tus kws tshawb fawb Asmeskas Robert W. Wood tau hais txog lub tswv yim ntawm cov iav fisheye. Nws siv cov iav fisheye los tsim cov duab 180 ° ntawm qhov dej ntawm hauv qab dej. Nws xav txog kev ua raws li qhov chaw ua haujlwm ntawm cov iav fisheye thiab tsim cov iav fisheye uas tuaj yeem tsim cov duab hemispherical.
Xyoo 1922, WN Bond tau txhim kho Wood lub "fisheye lens". Xyoo 1920, cov fisheye lens feem ntau siv rau hauv kev kawm txog huab cua los kawm txog kev tsim huab vim lawv lub kaum sab xis dav, uas tuaj yeem ntes tau tag nrho lub ntuj. Xyoo 1940, Robin Hill tau tsim lub fisheye lens thiab siv nws rau kev lag luam. Nws tau txhim kho qhov kaj ntawm lub fisheye lens thiab txo tus lej F ntawm lub kaw lus.
Los ntawm xyoo 1960, nrog rau kev tsim cov iav fisheye ntau heev, cov iav fisheye tau txais kev nyiam los ntawm ntau qhov chaw thiab pib ua ib qho ntawm cov iav tseem ceeb rau cov yeeb yaj kiab, kev ua si nawv hnyav thiab kev tshawb fawb.
Cov lens fisheye
Thaum pib ntawm lub xyoo pua 21st, qhov nrov ntawm cov koob yees duab digital thiab kev nce qib ntawm kev siv tshuab thaij duab ua raucov iav qhov muag ntsespib nkag mus rau hauv thaj chaw pom kev ntawm cov neeg siv khoom ib txwm. Muaj ntau hom thiab ntau hom lens fisheye hauv khw, uas tsis yog tsuas yog muaj cov teebmeem dav dav xwb, tab sis kuj muaj kev txhais siab thiab kev tsim xim, uas tuaj yeem ua tau raws li qhov xav tau ntawm cov neeg nyiam thaij duab rau qhov zoo ntawm daim duab.
3.Daim ntawv thov ntawm lub lens fisheye
Cov iav Fisheye siv dav hauv ntau qhov chaw vim lawv txoj kev tsim kho qhov muag tshwj xeeb thiab muaj peev xwm ntes tau cov kaum sab xis dav heev.
Cov ntawv thov kos duab ua yeeb yaj kiab
Siv lub lens fisheye thaum thaij ib qho scene yuav ua rau cov neeg saib xav tias lawv poob thiab nkag siab zoo. Piv txwv li, thaum ib tug neeg sawv los nrog kev qaug cawv hnyav thiab tsis paub tseeb tias nws nyob qhov twg, lub lens fisheye tuaj yeem nthuav tawm lub ntiaj teb uas tsis zoo li thawj tus neeg rau cov neeg saib. Tsis tas li ntawd, cov lens fisheye kuj tseem ceeb rau kev thaij cov scenes xws li kev ua yeeb yaj kiab kev ruaj ntseg thiab kev ua yeeb yam ntawm lub qhov rooj tiv thaiv kev tub sab.
Heev kawg lischaw nres nkoj
Yuav tsum muaj lub lens fisheye rau kev thaij duab cov kis las loj xws li skateboarding thiab parkour. Nws tso cai rau tus kws thaij duab kom pom tus neeg caij skateboard tag nrho thaum tsom mus rau lub skateboard.
Cov tsom iav Fisheye feem ntau siv los thaij cov kev ua si hnyav heev
Kev saib xyuasacov ntawv thov
Hauv kev saib xyuas kev ruaj ntseg, lub kaum sab xis dav dav ntawmcov iav qhov muag ntsestuaj yeem npog thaj chaw dav dua thiab tshem tawm qee qhov chaw dig muag. Lawv tuaj yeem siv los saib xyuas thaj chaw loj, xws li tsev loj, tsev rau khoom, chaw nres tsheb, thiab lwm yam, los muab cov peev xwm saib xyuas panoramic thiab txhim kho kev ua haujlwm zoo thiab kev nyab xeeb ntawm kev saib xyuas. Piv txwv li, lub koob yees duab fisheye ntsia hauv khw loj tuaj yeem saib xyuas tag nrho thaj chaw yuav khoom yam tsis tas siv ntau lub koob yees duab ib txwm muaj.
Virtualrqhov tseeb
Cov iav Fisheye siv tau los thaij duab panoramic lossis cov yeeb yaj kiab ntawm ib puag ncig, muab cov ntsiab lus zoo li tiag tiag rau virtual reality thiab augmented reality technologies. Cov iav Fisheye tso cai rau cov neeg tsim cov ntsiab lus VR kom ntes tau lub zeem muag dav dua ntawm lub ntiaj teb virtual, ua raws li tib neeg lub zeem muag thiab txhim kho qhov kev nkag siab tag nrho ntawm kev nkag mus rau hauv. Piv txwv li, hauv kev ncig tebchaws virtual, cov iav fisheye tuaj yeem ntes cov scenes panoramic, coj cov neeg siv mus rau qhov chaw deb, thiab muab kev paub txog kev mus ncig ua si.
Kev thaij duab los ntawm huab cua thiab kev thaij duab los ntawm drone
Cov iav Fisheye kuj tseem siv tau rau kev thaij duab saum huab cua thiab kev thaij duab drone, uas tuaj yeem ntes tau ntau yam xwm txheej thiab muab cov duab zoo nkauj thiab muaj txiaj ntsig zoo dua.
Cov iav Fisheye feem ntau siv rau kev thaij duab saum huab cua thiab kev thaij duab drone
Kev tshawb fawb txog kev tshawb fawb
Hauv kev tshawb fawb txog kev tshawb fawb, cov iav qhov muag ntses kuj siv dav hauv kev tshawb nrhiav geological, kev soj ntsuam hnub qub, kev thaij duab kho mob, thiab lwm yam, thiab tuaj yeem muab cov ntaub ntawv thiab cov ntaub ntawv ntau ntxiv.
Cov iav qhov muag ntsestuaj yeem muab kev pom kev tshwj xeeb thiab ntau yam kev soj ntsuam, thiab yog ib feem tseem ceeb ntawm cov thev naus laus zis niaj hnub no. Nrog kev nce qib ntawm thev naus laus zis, kev siv cov iav qhov muag ntses yuav dav dua, coj kev yooj yim dua thiab kev tsim kho tshiab rau peb lub neej thiab kev ua haujlwm.
Cov Lus Xaus:
ChuangAn tau ua tiav kev tsim qauv thiab tsim cov iav fisheye, uas siv dav hauv ntau qhov chaw. Yog tias koj xav tau lossis xav tau cov iav fisheye, thov hu rau peb sai li sai tau.
Lub sijhawm tshaj tawm: Lub Xya Hli-08-2025
