Chotsekera chozungulira ndi njira yojambulira chithunzi momwe chithunzi chosasunthika (mu kamera yosagwedezeka) kapena chimango chilichonse cha kanema (mu kamera ya kanema) chimajambulidwa, osati pojambula chithunzi chonse nthawi imodzi, koma poyang'ana pamalopo mwachangu, molunjika kapena molunjika. Mwanjira ina, si ziwalo zonse za chithunzi cha malowo zomwe zimajambulidwa nthawi imodzi. (Ngakhale, panthawi yosewera, chithunzi chonse cha malowo chimawonetsedwa nthawi imodzi, ngati kuti chikuyimira nthawi imodzi.) Izi zimapangitsa kuti zinthu zoyenda mwachangu zisokonezeke kapena kuwala kofulumira. Izi zikusiyana ndi "chotsekera padziko lonse lapansi" momwe chimango chonse chimajambulidwa nthawi imodzi. "Chotsekera Chozungulira" chingakhale chamakina kapena chamagetsi. Ubwino wa njira iyi ndikuti choyezera chithunzi chingapitirize kusonkhanitsa ma photon panthawi yopeza, motero chimawonjezera kukhudzidwa. Chimapezeka pamakamera ambiri a digito ndi makanema pogwiritsa ntchito masensa a CMOS. Zotsatira zake zimawonekera kwambiri pojambula zochitika zoopsa kwambiri za kuyenda kapena kuwala kofulumira..
Chotseka Padziko Lonse
Njira yotsekera padziko lonse lapansiMu sensa ya chithunzi, ma pixel onse a sensa amalola ma pixel onse kuyamba kuwonekera ndikusiya kuwonekera nthawi imodzi kwa nthawi yowonetsedwa yokonzedwa panthawi iliyonse yopeza chithunzi. Pambuyo pa nthawi yowonekera, kuwerenga deta ya ma pixel kumayamba ndipo kumapitilira mzere ndi mzere mpaka deta yonse ya ma pixel itawerengedwa. Izi zimapanga zithunzi zosasokonekera popanda kugwedezeka kapena kupotoka. Masensa a shutter padziko lonse nthawi zambiri amagwiritsidwa ntchito kujambula zinthu zoyenda mwachangu.It tingayerekezeredwe ndi ma shutter a lens omwe amagwiritsidwa ntchito m'makamera a kanema wa analog. Monga iris yomwe ili m'diso la munthu, amafanana ndi kutsegula kwa lens ndipo mwina ndi zomwe mumaganiza mukamaganizira za ma shutter..
Chotsekeracho chiyenera kutsegulidwa mwachangu ngati kuwala chikatulutsidwa ndipo chiyenera kutsekedwa nthawi yomweyo kumapeto kwa nthawi yowonekera. Pakati pa kutsegulidwa ndi kutsekedwa, gawo la filimu loti litenge chithunzicho limawonekera nthawi yomweyo (kuwonekera padziko lonse lapansi).
Monga momwe chithunzichi chikusonyezera: mu global shutter mode, pixel iliyonse mu sensa imayamba ndikutha kuwonekera nthawi imodzi, motero pamafunika kukumbukira kwakukulu, chithunzi chonsecho chikhoza kusungidwa mu memori pambuyo poti kuwonekera kwatha ndipo chikhoza kuwerengedwa pang'onopang'ono. Njira yopangira sensa ndi yovuta kwambiri ndipo mtengo wake ndi wokwera mtengo, koma ubwino wake ndi wakuti imatha kujambula zinthu zoyenda mwachangu popanda kusokoneza, ndipo kugwiritsa ntchito kwake ndi kwakukulu.
Makamera otsekera padziko lonse lapansi amagwiritsidwa ntchito pazinthu monga kutsata mpira, makina odzipangira okha m'mafakitale, maloboti osungiramo katundu, ndi ma drones., kuyang'anira magalimoto, kuzindikira manja, AR & VRndi zina zotero.
Chotsekera Chozungulira
Chotsekera chozunguliraMu kamera, mizere ya ma pixel imaonekera motsatizana, ndi nthawi yosiyana kuchokera pamzere umodzi kupita ku wina. Poyamba, mzere wapamwamba wa chithunzicho umayamba kusonkhanitsa kuwala ndikumaliza. Kenako mzere wotsatira umayamba kusonkhanitsa kuwala. Izi zimapangitsa kuchedwa kwa nthawi yomaliza ndi yoyambira yosonkhanitsa kuwala kwa mizere yotsatizana. Nthawi yonse yosonkhanitsa kuwala kwa mzere uliwonse ndi yofanana. Mu rolling shutter mode, mizere yosiyanasiyana ya gulu imaonekera nthawi zosiyanasiyana pamene 'wave' yowerengedwa ikudutsa mu sensa, monga momwe zasonyezedwera pachithunzi chotsatira: mzere woyamba umawonekera poyamba, ndipo pambuyo pa nthawi yowerenga, mzere wachiwiri umayamba kuwonekera, ndi zina zotero. Chifukwa chake, mzere uliwonse umawerenga kenako mzere wotsatira ukhoza kuwerengedwa. Rolling shutter sensor iliyonse ya pixel imangofunika ma transistors awiri kuti anyamule ma electron, motero kupanga kutentha kochepa, phokoso lochepa. Poyerekeza ndi global shutter sensor, kapangidwe ka rolling shutter sensor ndi kosavuta komanso kotsika mtengo, koma chifukwa mzere uliwonse suwonekera nthawi imodzi, kotero upanga kusokonekera pogwira zinthu zoyenda mwachangu.
Kamera yozungulira yotsekaimagwiritsidwa ntchito kwambiri pojambula zinthu zoyenda pang'onopang'ono monga mathirakitala a ulimi, ma conveyor othamanga pang'onopang'ono, ndi mapulogalamu odziyimira pawokha monga ma kiosks, ma barcode scanner, ndi zina zotero.
KODI MUNGAPEWE BWANJI?
Ngati liwiro loyenda silili lalikulu kwambiri, ndipo kuwala kumasinthasintha pang'onopang'ono, vuto lomwe lakambidwa pamwambapa silikhudza kwambiri chithunzicho. Nthawi zambiri, kugwiritsa ntchito sensa yolumikizira padziko lonse lapansi m'malo mwa sensa yolumikizira yolumikizira ndiyo njira yofunika kwambiri komanso yothandiza kwambiri pamapulogalamu othamanga kwambiri. Komabe, m'mapulogalamu ena omwe amawononga ndalama zambiri kapena omwe amakhudzidwa ndi phokoso, kapena ngati wogwiritsa ntchito ayenera kugwiritsa ntchito sensa yolumikizira yolumikizira pazifukwa zina, angagwiritse ntchito flash kuti achepetse zotsatira zake. Pali zinthu zingapo zomwe ziyenera kukumbukiridwa mukamagwiritsa ntchito mawonekedwe a sync flash ndi sensa yolumikizira yolumikizira:● Sikuti nthawi zonse zomwe zimawonetsedwa zimakhala ndi chizindikiro cha strobe, pamene nthawi yowonekera ndi yochepa kwambiri ndipo nthawi yowerenga ndi yayitali kwambiri, mizere yonse ilibe chiwonetsero chofanana, palibe chizindikiro cha strobe, ndipo strobe siiwala.● Pamene nthawi ya strobe flash ili yochepa kuposa nthawi yowonekera● Pamene nthawi yotulutsa chizindikiro cha strobe ili yochepa kwambiri (mlingo wa μs), magwiridwe antchito a strobe ena sangakwaniritse zofunikira pa switch yachangu, kotero strobe singathe kugwira chizindikiro cha strobe.
Nthawi yotumizira: Novembala-20-2022
