Lokhu kuyinkinga ngaphakathi kwendawo ye-optics, enencazelo yayo ejwayelekile kuma-optics.Isithombe esikhiqizwa ngokuthatha isithombe ngekhamera sizohlanekezelwa.Isibonelo, sonke sinolwazi lokuthatha izithombe ngamakhamera ajwayelekile ekhaya.Kukhona uhlobo lwelensi olubizwa ngokuthi “i-wide-angle lens”, olubizwa ngokuthi “i-fisheye lens” ngokungenalunya.Uma uthatha isithombe ngalolu hlobo lwamalensi, uzothola ukuthi isithombe esisemaceleni esithombe sigobile.Lesi simo sibangelwa "ukuhlanekezela kwamalensi".Isibonelo "se-fisheye lens" yingoba "i-fisheye lens" iyilensi enokuhlanekezela okukhulu.
I-lens inokuhlanekezela, umehluko wukuthi ukuhlanekezela kuyahluka kakhulu.Ngohlelo lokuhlola okubukwayo, kuthenjwa ukuthi ukuhlanekezela kwelensi okusetshenzisiwe kuncane ngangokunokwenzeka.Lokhu kungenxa yokuthi lapho uhlelo lokubona luhlola, lwenziwa esithombeni esithwetshulwe yikhamera.Uma umfanekiso wekhamera “ugwegwile”, umphumela wokutholwa kwesistimu ngeke ube “olungile” — lokhu kusho ukuthi i-beam engaphezulu ayilungile futhi i-beam engezansi igwegwile.
Kunezindlela ezimbili zesistimu yombono yokulungisa ukuhlanekezelwa kwamalensi: okungukuthi, qala ku-hardware noma uqale ku-software.Indlela yokuqala kusuka ku-hardware ilula: vele usebenzise i-lens ngokuhlanekezela okuncane.Lolu hlobo lwamalensi lubizwa nge-telecentric imaging lens, emba eqolo, izikhathi ezingaphezu kweziyisi-6 noma ezingu-7 kunentengo yelensi evamile.Ukuhlanekezela kwalolu hlobo lwamalensi kungaphansi kwe-1%, kanti amanye angafinyelela ku-0.1%.Amasistimu amaningi wokulinganisa umbono anembe kakhulu asebenzisa lolu hlobo lwamalensi: Indlela yesibili ukuqala kusofthiwe.Uma wenza "ukulinganisa kwekhamera", sebenzisa i-matrix yechashazi kumojuli evamile yokulinganisa ukuze ubale.Indlela ethile ithi: ngemva kokuqedwa “kokulinganisa kwekhamera”, usayizi wephuzu ngalinye ku-matrix yamachashazi utholwa ngokwesilinganiso esaziwayo, futhi ubukhulu bamachashazi asemkhawulweni we-matrix yamachashazi kuhlaziywe.Usayizi wephoyinti uhlukile.Isilinganiso singatholakala ngokuqhathanisa, futhi lesi silinganiso siwukuhlanekezela kwelensi.Ngalesi silinganiso, ukuhlanekezela kungalungiswa ngesikhathi sokulinganisa kwangempela.
Isikhathi sokuthumela: Oct-08-2021