Covfisheye lensyog lub kaum sab xis dav nrog qhov tsim kho qhov muag tshwj xeeb, uas tuaj yeem pom lub kaum sab xis pom loj thiab cuam tshuam, thiab tuaj yeem ntes qhov pom dav heev.Hauv tsab xov xwm no, peb yuav kawm txog cov yam ntxwv, kev siv thiab cov lus qhia siv ntawm lub ntsej muag lo ntsiab muag.

1.Cov yam ntxwv ntawm fisheye lo ntsiab muag

(1)Kev pom dav dua

Lub kaum sab xis ntawm lub ntsej muag ntawm lub ntsej muag yog feem ntau ntawm 120 degrees thiab 180 degrees.Piv nrog rau lwm qhov dav-angle lo ntsiab muag, fisheye lo ntsiab muag tuaj yeem ntes qhov dav dua.

Lub lens fisheye

(2)Muaj zog distortion nyhuv

Piv nrog rau lwm cov lo ntsiab muag, lub ntsej muag lub ntsej muag muaj qhov cuam tshuam zoo dua, ua rau cov kab ncaj nraim hauv cov duab zoo li nkhaus los yog khoov, nthuav tawm cov duab tshwj xeeb thiab zoo heev.

(3)High lub teeb transmittance

Feem ntau hais lus, fisheye lo ntsiab muag muaj lub teeb xa hluav taws xob ntau dua thiab tuaj yeem tau txais cov duab zoo dua hauv cov teeb pom kev tsawg.

2.Adaim ntawv thovsntawm fisheye lo ntsiab muag

(1)Tsim cov teebmeem kev pom tshwj xeeb

Cov nyhuv distortion ntawm lubfisheye lenstuaj yeem tsim cov teebmeem kev pom tshwj xeeb thiab tau siv dav hauv kev kos duab thaij duab thiab kev yees duab muaj tswv yim.Piv txwv li, tua tsev, toj roob hauv pes, tib neeg, thiab lwm yam tuaj yeem muab koj cov duab sib txawv.

(2)Kev ua kis las thiab kev ua kis las yees duab

Lub lens fisheye yog qhov tsim nyog rau kev ntes cov kis las kis las, qhia txog kev nkag siab zoo thiab txhawb kev cuam tshuam ntawm kev txav.Feem ntau siv hauv kev ua kis las, kev sib tw tsheb thiab lwm yam.

(3)Yees duab qhov chaw me me

Vim tias nws tuaj yeem ntes qhov dav dav ntawm qhov pom, lub ntsej muag fisheye feem ntau siv los ntes qhov chaw me me, xws li sab hauv tsev, tsheb, qhov tsua, thiab lwm yam scenes.

(4)Cov txiaj ntsig pom zoo

Lub lens fisheye tuaj yeem hais txog qhov pom ntawm qhov ze thiab deb, tsim kom pom cov txiaj ntsig ntawm kev nthuav dav lub hauv ntej thiab txo qis hauv keeb kwm yav dhau, thiab txhim kho cov nyhuv peb sab ntawm daim duab.

Daim ntawv thov ntawm fisheye lens

(5)Kev tshaj tawm thiab kev lag luam yees duab

Fisheye lo ntsiab muag kuj tau siv dav hauv kev tshaj tawm thiab kev lag luam yees duab, uas tuaj yeem ntxiv cov lus qhia tshwj xeeb thiab pom kev cuam tshuam rau cov khoom lossis scenes.

3.Cov lus qhia siv Fisheye lens

Cov teebmeem tshwj xeeb ntawm covfisheye lensmuaj ntau hom kev siv hauv cov ntsiab lus sib txawv, uas yuav tsum tau sim thiab xyaum ua raws li qhov xwm txheej tiag tiag.Feem ntau, koj yuav tsum tau xyuam xim rau cov lus qhia hauv qab no thaum siv cov lo ntsiab muag fisheye:

(1)Tsim nrog cov teebmeem distortion

Cov nyhuv distortion ntawm fisheye lens yuav siv tau los tsim kom muaj kev nkag siab ntawm curvature los yog exaggerated distortion ntawm scene, txhim kho cov artistic nyhuv ntawm daim duab.Koj tuaj yeem sim siv nws los tua cov tsev, toj roob hauv pes, tib neeg, thiab lwm yam los qhia lawv cov duab tshwj xeeb.

(2)Sim zam lub hauv paus ntsiab lus

Txij li cov nyhuv distortion ntawm lub lens fisheye yog qhov pom tseeb dua, cov ntsiab lus hauv nruab nrab yog yooj yim ncab los yog distorted, yog li thaum sau cov duab, koj tuaj yeem tsom mus rau cov npoo lossis cov khoom tsis sib xws los tsim kom pom cov nyhuv tshwj xeeb.

Cov lus qhia siv ntawm fisheye lens

(3)Ua tib zoo saib kom tsim nyog tswj lub teeb

Vim lub dav-angle yam ntxwv ntawm fisheye lens, nws yog ib qho yooj yim rau overexpose lub teeb los yog overexpose cov duab ntxoov ntxoo.Txhawm rau kom tsis txhob muaj qhov xwm txheej no, koj tuaj yeem sib npaug qhov cuam tshuam los ntawm kev hloov kho qhov cuam tshuam tsis zoo lossis siv cov ntxaij lim dej.

(4)Kev siv cov kev xav tau zoo

Covfisheye lenstuaj yeem hais txog qhov pom ntawm qhov ze thiab deb, thiab tuaj yeem tsim qhov pom kev ntawm qhov loj ntawm lub hauv ntej thiab txo qis tom qab.Koj tuaj yeem xaiv lub kaum sab xis uas tsim nyog thiab nyob deb los qhia txog qhov pom tshwm sim thaum tua.

(5)Ua tib zoo saib xyuas qhov sib txawv ntawm cov npoo ntawm lub lens

Cov teebmeem distortion ntawm qhov chaw thiab ntug ntawm lub lens yog txawv.Thaum tua, koj yuav tsum tau them sai sai rau seb cov duab ntawm ntug ntawm lub lens puas yog raws li qhov xav tau, thiab siv qhov tsim nyog ntawm ntug kev cuam tshuam los txhim kho tag nrho cov txiaj ntsig ntawm daim duab.