Ungayikhetha kanjani ikhamera yenkomfa yevidiyo elungile

Njengedivayisi eqoqwe ebaluleke kakhulu yezinkomfa zevidiyo, amakhamera enkomfa yevidiyo adlala indima ebalulekile ekukhetheni okokusebenza kwehardware yenkomfa yevidiyo.Njengedivayisi yokuqoqa ingqungquthela, amakhamera enkomfa ngevidiyo anemingcele ehlukene kusuka kwamanye amakhamera ajwayelekile omndeni.Amapharamitha ngokuvamile anganquma imisebenzi yomkhiqizo wekhamera yenkomfa yevidiyo.Ake siqale ngamapharamitha amakhamera ambalwa enkomfa yevidiyo futhi sihlaziye amapharamitha ambalwa adinga ukunakwa lapho ethola ikhamera yenkomfa yevidiyo:

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1. Ilensi

I-lens iyingxenye ebalulekile ye-aikhamera yenkomfa yevidiyo.Izinto ezithatha izithombe ezisetshenziselwa ilensi yamakhamera enkomfa yevidiyo emakethe zingahlukaniswa zibe yi-CCD ne-CMOS.Inzuzo ye-CMOS ukuthi izindleko ziphansi kune-CCD, futhi ukusetshenziswa kwamandla kuphansi kakhulu.Kodwa-ke, ngenxa yokuthi ubuchwepheshe obusetshenzisiwe abukakabi yinkimbinkimbi, abukasetshenziswa kabanzi, kodwa imvelo yabo ethuthukisiwe inquma njengendlela yesikhathi esizayo.Njengamanje, usayizi wesici se-CCD se-photosensitive element ngokuvamile siyi-intshi engu-1/3 noma 1/4 intshi.Ngaphansi kwesinqumo esifanayo, kungcono ukhethe usayizi we-elementi enkulu.

2. Ubude bokugxila

Ubude bokugxila yibanga phakathi kwephoyinti elingalungiswa kanye nekhamera.Uma ubude bendawo bukhulu, ibanga elingathathwa isithombe likude.Ngokuvamile, amakhamera enkomfa yevidiyo egxilile ashibhile kunamakhamera agxile.Uma ubude bendawo bukhulu, kulapho ithagethi ingabonakala khona ngekhamera, futhi uma ubude bendawo buba buncane, kulapho okuhlosiwe kungabonakala ngakhona.

3. Ukulungiswa kwesithombe

Isixazululo sezithombe yikhono leikhameraukuhlaziya nokuhlukanisa izithombe.Kunomthelela oqondile endimeni yezithombe.Ukulungiswa ngokuvamile kungahlukaniswa ngezinhlobo ezimbili: ukulungiswa kwesithombe nokulungiswa kwevidiyo, okungukuthi, isixazululo lapho uthwebula izithombe ezimile kanye nesinqumo lapho uthwebula izithombe eziguquguqukayo.Ekusetshenzisweni kwenkomfa ngevidiyo, ukulungiswa kwesithombe kuvamise ukuba kuphezulu kunokulungiswa kwevidiyo.

Izinhlobo zezinqumo ezinganikezwa amakhamera enkomfa ngevidiyo emakethe nazo zihlukile, ngakho-ke qaphela lapho uthenga.Ezinye izimpawu zokuxazulula zibhekisela ekulungisweni kokuhumusha le mikhiqizo engafinyelelwa kuyo kusetshenziswa isofthiwe, kodwa zihlukaniswa ku-hardware.Ukuqhathaniswa kwezinga kusenesikhathi esithile.

4. Amaphikseli aqoqiwe

Inani lephikseli eliqoqwe yikhamera liyithagethi ebalulekile ethinta ikhwalithi yekhamera yenkomfa yevidiyo, futhi liwuphawu olubaluleke kakhulu lokwahlulela ikhwalithi yayo.Inani lephikseli lemikhiqizo yokuqala ngokuvamile licishe libe ngu-100,000.Ngenxa yokuqukethwe okuphansi kobuchwepheshe, manje isisemaphethelweni okuhlolwa, futhi abasebenzisi kufanele bayinake lapho beyithenga.Kodwa ukucabangela ngobumpumputhe inani le-pixel nakho akudingekile.Ngoba ukuphakama kwevelu yephikseli, amandla omkhiqizo okuhlaziya izithombe anamandla, iba nkulu imfuneko yekhompiyutha yokucubungula idatha.

Uma impahla yekhompuyutha ingekho phezulu ngokwanele, ukusetshenziswa kwempahla yokuqoqwa kwamaphikseli aphezulu kungase kubangele ukulibaziseka esithombeni, bese kuthinta ukudluliswa kwengqungquthela yevidiyo.Ngakho-ke, abasebenzisi kufanele bafingqe ezabo izidingo ezingokoqobo lapho bethenga imikhiqizo, futhi bangafuni amathrendi ngobumpumputhe.

5. Transmission interface

akwanele kwinkomfa ngevidiyoamakhameraukuqoqa izithombe ezisezingeni eliphezulu.Futhi sidinga izixhumi ezibonakalayo zokudlulisa ngesivinini esikhulu ukuze sidlulise idatha eqoqiwe.Uma umkhawulokudonsa wokudlulisa wesixhumi esibonakalayo esiwukhethayo umncane, idatha izovinjwa noma ngisho nohlaka lweqiwe.Kodwa-ke, kuzoba nokudluliswa kwedatha okuningi ekusetshenzisweni okungokoqobo kwamakhamera enkomfa yevidiyo, futhi abasebenzisi kufanele banake leli phuzu lapho bethenga.Imikhiqizo yesixhumi esibonakalayo se-USB ibilokhu yamukelwa kabanzi ukuthi ixhumeke futhi idlale futhi kulula ukuyisebenzisa.Ikhamera yenkomfa yevidiyo isebenzisa isixhumi esibonakalayo se-USB, esingaxhunywa futhi sidlale, kodwa ngenxa yokuthi ezinye izisetshenziswa zisebenzisa inguqulo ephansi ye-USB, isixhumi esibonakalayo sokudlulisa asikwazi ukujwayelana nedatha yezithombe ezinkulu, ngakho-ke kufanele sishicilele inguqulo ye-USB uma siyithola.Futhi i-bandwidth yokudlulisa.


Isikhathi sokuthumela: Oct-28-2020