Xyoo kaum xyoo dhau los, kev lag luam - qib koob yees duab kev lag luam tau hloov zuj zus los ntawm ib feem ntawm cov niche mus rau ntau lub ecosystem, nrog rau kev loj hlob ntawm cov qauv uas haum rau txhua qhov kev xav tau ua haujlwm. Raws li ib tug neeg uas tau qhia ntau pab pawg kev lag luam thiab OEM ntawm lub koob yees duab xyoo dhau los, kuv tau pom ua ntej tias kev xaiv ntau npaum li cas -thaum muaj txiaj ntsig zoo rau kev hloov pauv - tuaj yeem ua rau raug nqi tsis raug. Lub hauv paus ntawm qhov kev sib tw tsis yog tsuas yog nkag siab specs ntawm daim ntawv teev cov ntaub ntawv; nws yog aligning lub koob yees duab technology nrog lub cim xav tau ntawm koj daim ntawv thov. Hauv daim ntawv no, kuv yuav rhuav tshem qhov sib txawv tseem ceeb ntawm peb hom koob yees duab hauv paus-xim, monochrome (mono), thiab ze rau -infrared (NIR)- thiab qhia kev nkag siab los pab koj txiav cov suab nrov thiab ua kom paub xaiv.
Kev sib piv hauv paus: Xim vs. Monochrome koob yees duab
Cia peb pib nrog qhov sib txawv tshaj plaws: xim piv rau monochrome duab. Nyob rau theem pib, cov koob yees duab xim ntes scenes raws li tib neeg lub qhov muag pom lawv, thaum lub koob yees duab mono muab cov duab hauv grayscale (dub, dawb, thiab grey). Tab sis qhov sib txawv tiag tiag yog nyob rau hauv yuav ua li cas lawv cov sensors txheej txheem teeb pom kev zoo- nthuav dav uas cuam tshuam ncaj qha rau kev ua tau zoo hauv qhov tiag - ntiaj teb kev lag luam chaw.
Yuav kom nkag siab qhov no, cia peb dhia mus rau hauv sensor mechanics. Txhua daim duab sensor yog ib qho array ntawm photosensitive diodes (pixels) uas pom qhov siv ntawm lub teeb tsoo txhua qhov taw tes. Rau lub koob yees duab 2-megapixel, qhov ntawd yog 2 lab tus neeg lub teeb pom kev. Nyob rau hauv ib lub koob yees duab mono, cov ntaub ntawv los ntawm cov pixels no ncaj nraim: txhua pixel lub teeb siv yog mapped rau ib tug greyscale tus nqi, uas ua rau ib tug raw, unprocessed grayscale duab. Lub teeb ncaj qha no-rau-cov ntaub ntawv hloov dua siab tshiab yog lub hauv paus ntawm lub koob yees duab mono lub ntsiab zoo.
Xim sensors, los ntawm qhov sib txawv, ntxiv ib txheej ntxiv: xim lim array (CFA) tso rau ntawm lub sensor. Feem ntau ntawm cov no yog tus qauv Bayer- kab sib chaws ntawm cov xim liab, ntsuab, thiab xiav cov ntxaij lim dej ua ke nrog lub sensor's pixels (nrog rau ob zaug ntau cov ntxaij lim dej ntsuab, ua rau tib neeg lub qhov muag rhiab heev rau lub teeb ntsuab). Tab sis ntawm no yog qhov ntes: txhua pixel tsuas yog ntes ib qho xim channel. Txhawm rau tsim ib daim duab puv - xim, lub koob yees duab processor siv lub demosaicing algorithm los "sau" cov ntaub ntawv xim uas ploj lawm los ntawm cov pixels uas nyob ib sab. Txawm hais tias niaj hnub demosaicing algorithms tau ua kom zoo dua qub, qhov kev tsim kho tshiab no qhia txog kev hloov pauv hloov pauv uas tseem ceeb hauv cov ntawv thov kev lag luam.
Tswv yim Pros thiab Cons: Thaum twg xaiv qhov twg?
Qhov kev txiav txim siab ntawm cov xim thiab mono thaum kawg npau taws rau koj daim ntawv thov tsis yog -kev sib tham. Cia peb pib nrog cov koob yees duab xim: lawv qhov zoo tshaj plaws yog pom tseeb - lawv ntes cov ntaub ntawv xim. Yog tias koj txoj haujlwm yuav tsum tau txheeb xyuas cov xim - cov khoom siv code (xws li, txheeb cov xim xim ntawm cov kab ntau lawm), kuaj cov xim tsis xws luag (xws li cov xim tsis zoo hauv ntim), lossis sau cov xwm txheej nrog cov ntsiab lus pom tseeb (xws li kev soj ntsuam kev ruaj ntseg qhov txawv ntawm cov khaub ncaws xim tseem ceeb), lub koob yees duab xim tsis yog - sib tham. Nws yog lub cuab yeej ntawm kev xaiv thaum pom kev ncaj ncees rau tib neeg lub qhov muag yog qhov tseem ceeb.
Mono koob yees duab, txawm li cas los xij, ci qhov twg lub teeb tsis tshua muaj lossis kev daws teeb meem yog qhov tseem ceeb. Tag nrho lwm yam yog sib npaug (tib yam sensor loj, pixel suav, thiab lens), lub koob yees duab mono yuav yog kwv yees li 3x ntau lub teeb-sensitive dua li nws cov xim sib piv. Vim li cas? Vim tias Bayer lim hauv cov koob yees duab xim thaiv ib ncig ntawm ob -feem peb ntawm lub teeb tsoo txhua pixel - lub teeb uas lub mono sensor ntes tag nrho. Qhov no ua rau cov koob yees duab mono zoo tagnrho rau qhov chaw qis- teeb pom kev zoo: xav tias cov khoom lag luam tsis muaj teeb pom kev zoo, kev tshuaj xyuas hmo ntuj, lossis cov ntawv thov uas ntxiv cov teeb pom kev zoo tsis zoo (xws li, tshuaj xyuas cov cua sov- cov ntaub ntawv rhiab heev).
Lwm qhov txiaj ntsig tseem ceeb ntawm cov koob yees duab mono yog kev daws teeb meem zoo dua. Demosaicing algorithms ua ib txoj haujlwm zoo ntawm kev tsim cov duab xim, tab sis lawv tsis tuaj yeem phim cov ntug ntse thiab nthuav dav ntawm mono sensor qhov ntsuas lub teeb ncaj qha. Hauv cov ntawv thov xws li kev ntsuas ntsuas ntsuas ( ntsuas cov khoom me me) lossis kev kuaj pom qhov tsis xws luag (pom micro- khawb ntawm cov hlau), lub koob yees duab mono zoo tshaj qhov sib piv tuaj yeem txhais tau tias qhov sib txawv ntawm kev ntes qhov tsis xws luag thiab ploj lawm. Kuv tau pom qhov no ua si hauv kev tshuaj xyuas tsheb, qhov twg cov koob yees duab mono tsis tu ncua ua tau zoo dua cov qauv xim hauv kev kuaj pom qhov tsis zoo ntawm qhov chaw.
Tshaj Tawm Pom Lub Teeb: Ze -Infrared (NIR) Lub Koob Yees Duab
Yog tias cov koob yees duab mono txuas ntxiv kev ua tau zoo hauv lub teeb pom kev, NIR cov koob yees duab thawb cov ciam teb mus rau ze ntawm -infrared spectrum- qhib lub peev xwm uas tsis muaj xim lossis qauv mono koob yees duab tuaj yeem sib phim. Txhawm rau ua qhov no, cia peb nco qab txog cov electromagnetic spectrum: pom lub teeb spans 380nm (violet) rau 780nm (liab). NIR zaum dhau qhov no, los ntawm 780nm mus rau kwv yees li 1000nm. Tsis zoo li ntev dua - wavelength infrared (SWIR, MWIR, LWIR), uas yog txuam nrog thermal imaging, NIR lub koob yees duab leverage lub teeb uas tsis pom ntawm tib neeg lub qhov muag tab sis tseem muaj feem cuam tshuam los ntawm cov ntaub ntawv feem ntau.
Technically, NIR koob yees duab yog ib tug tshwj xeeb subset ntawm mono koob yees duab. Qhov sib txawv yog nyob rau hauv kev tsim sensor: tus qauv mono sensors yog optimized rau pom lub teeb, thaum NIR sensors yog engineered kom rhiab rau NIR spectrum (feem ntau yog tshem tawm los yog hloov lub infrared txiav lim uas yog standard xim thiab ntau mono koob yees duab). Cov koob yees duab NIR feem ntau suav nrog 380nm-1000nm ntau yam, hla kev pom thiab NIR lub teeb- ua rau lawv muaj ntau yam rau cov ntawv thov uas xav tau ob qho tib si pom thiab pom tsis pom lub teeb pom kev.
Nyob rau hauv xyoo tas los no, kev nce qib hauv kev tsim cov khoom siv sensor tau ua rau NIR lub koob yees duab nkag mus tau ntau dua li qhov qub -cov qauv me me, cov nqi qis dua, thiab kev sib koom ua ke zoo dua nrog cov tshuab ua lag luam tau nthuav dav lawv cov kev siv ntau dua li cov ntawv siv ib txwm siv xws li kev paub txog tej thaj chaw deb. Niaj hnub no, kuv pom NIR cov koob yees duab siv rau txhua yam los ntawm kev tshuaj xyuas cov ntim khoom noj (kuaj xyuas cov khoom tsis xws luag uas pom tsis pom hauv lub teeb pom kev) txhawm rau txheeb xyuas cov ntawv luam tawm ntawm cov ntaub ntawv pob tshab (qhov twg NIR lub teeb txhim kho qhov sib piv ntawm tus number case thiab substrate) thiab txawm saib xyuas cov nroj tsuag kev noj qab haus huv hauv kev ua liaj ua teb automation.
Qhov tseem ceeb Takeaways rau Industrial thiab OEM xaiv
Thaum kawg ntawm hnub, tsis muaj "zoo tshaj" lub koob yees duab hom-tsuas yog lub koob yees duab zoo rau koj daim ntawv thov. Txhawm rau recap lub hauv paus kev txiav txim siab tseem ceeb:
- Xaiv ibkoob yees duab ximyog tias kev txheeb xyuas xim, cov ntsiab lus pom, lossis tib neeg - qhov muag tiag tiag yog qhov tseem ceeb rau koj txoj haujlwm.
- Xaiv rau iblub koob yees duab monoyog tias tsawg- lub teeb ua tau zoo, qhov sib txawv ntawm ntug siab, lossis qhov kev daws teeb meem siab tshaj plaws tsis yog - sib tham tau - tshwj xeeb hauv kev tshuaj xyuas qhov tseeb lossis kev siv ntsuas ntsuas.
- Mus nrog ibNIR lub koob yees duabyog tias koj xav pom dhau ntawm qhov pom pom spectrum- seb puas yog txhawm rau kuaj pom qhov tsis xws luag, txhim kho qhov sib piv ntawm cov ntaub ntawv nyuaj, lossis siv NIR- cov khoom tshwj xeeb (xws li nkag mus los ntawm qee qhov substrates).
Rau cov koom haum kev lag luam thiab OEM, "ib- qhov loj me- haum- tag nrho" txoj hauv kev tsis tshua ua haujlwm. Txhua daim ntawv thov muaj kev txwv tshwj xeeb-los ntawm ib puag ncig (lub teeb, kub, plua plav) mus rau kev sib koom ua ke (loj, hwj chim, software compatibility) thiab pob nyiaj siv. Qhov ntawd yog qhov kev daws teeb meem los ntawm kev ua si: tailoring lub koob yees duab sensors, lo ntsiab muag, thiab kev ua haujlwm rau koj cov haujlwm tshwj xeeb tuaj yeem qhib qhov kev ua tau zoo uas tawm ntawm -- cov qauv txee tsis tuaj yeem phim.
Nrog 25 xyoo ntawm kev paub hauv kev lag luam duab, pab pawg Videology thiab kuv tau pab suav tsis txheeb cov koom haum taug kev xaiv cov txheej txheem no-los ntawm me me - teev OEM kev koom ua ke mus rau cov haujlwm loj automation. Txawm hais tias koj tab tom saib xyuas qhov tseeb xim, qis- lub teeb rhiab heev, NIR muaj peev xwm, lossis kev cai- kho kom haum, tus yuam sij yog pib nrog koj daim ntawv thov cov cai, tsis yog qhov tseeb specs. Hu rau peb pab neeg los tham txog koj qhov project; peb yuav pab koj phim lub koob yees duab technology zoo rau koj cov kev xav tau tshwj xeeb.
