Le yingxaki ngaphakathi kwendawo ye-optics, enenkcazelo yayo esemgangathweni kwi-optics.Umfanekiso oveliswe ngokuthatha ifoto ngekhamera uya konakala.Umzekelo, sonke sinamava okuthatha imifanekiso ngeekhamera eziqhelekileyo ekhaya.Kukho uhlobo lwelensi ebizwa ngokuba yi "wide-angle lens", ebizwa ngokuba yi "fisheye lens" ngokungenalusini.Xa uthatha ifoto ngolu hlobo lwelensi, uya kufumanisa ukuba umfanekiso osemacaleni efoto ugobile.Esi siganeko sibangelwa "kukuphazamiseka kweelensi".Umzekelo we-"fisheye lens" kungenxa yokuba "i-lens ye-fisheye" yi-lens enokuphazamiseka okukhulu.
I-lens inokuphazamiseka, umehluko kukuba ukuguqulwa kuyahluka kakhulu.Kwinkqubo yokuhlola okubonakalayo, ngokuqinisekileyo kunethemba lokuba ukuguqulwa kwe-lens esetyenzisiweyo kuncinci kangangoko kunokwenzeka.Oku kungenxa yokuba xa inkqubo yombono yenza ubhaqo, lwenziwa kumfanekiso owenziwe yikhamera.Ukuba i-imaging yekhamera "igoso", umphumo wokukhangela inkqubo awuyi kuba "chanekile" - oku kuthetha ukuba i-beam ephezulu ayichanekanga kwaye i-beam ephantsi igoso.
Kukho iindlela ezimbini zenkqubo yombono ukulungisa ukuphazamiseka kwelensi: oko kukuthi, ukuqala kwi-hardware okanye uqale kwi-software.Indlela yokuqala ukusuka kwi-hardware ilula: sebenzisa nje i-lens ngokuphazamiseka okuncinci.Olu hlobo lwelensi lubizwa ngokuba yi-telecentric imaging lens, ebiza imali eninzi, ngaphezulu kwe-6 okanye isi-7 ixabiso lelensi eqhelekileyo.Ukuphazamiseka kolu hlobo lwe-lens lungaphantsi kwe-1%, kwaye abanye banokufikelela kwi-0.1%.Uninzi lweenkqubo zokulinganisa umbono ezichanekileyo zisebenzisa olu hlobo lwelensi: Indlela yesibini kukuqala kwisoftware.Xa usenza “ulungelelwaniso lwekhamera”, sebenzisa imatrix yechaphaza kwimodyuli esemgangathweni yokulinganisa ukubala.Indlela ethile yile: emva kokugqitywa "kokulungelelaniswa kwekhamera", ubungakanani benqaku ngalinye kwi-matrix yamachaphaza bufunyenwe ngokomlinganiselo owaziwayo, kwaye ubungakanani bamachaphaza kumda we-matrix yamachaphaza ihlalutyiwe.Ubungakanani benqaku buhlukile.Umlinganiselo unokufumaneka ngokuthelekisa, kwaye lo mlinganiso kukuphazamiseka kwelensi.Ngalo mlinganiso, ukuphazamiseka kunokulungiswa ngexesha lokulinganisa kwangempela.
Ixesha lokuposa: Oct-08-2021