Ilensi ye-fisheye ilensi ye-engeli ebanzi ngokwedlulele, eyaziwa nangokuthi ilensi yepanoramic.Ngokuvamile kucatshangelwa ukuthi ilensi enobude obugxilwe obungu-16mm noma ubude bokugxila obufushane buyilensi ye-fisheye, kodwa kwezobunjiniyela, ilensi enebanga lokubuka elingaphezu kwamadigri angu-140 ngokuhlangene ibizwa ngokuthi ilensi ye-fisheye.Ekusebenzeni, kukhona namalensi anama-engeli wokubuka adlula noma afinyelele ngisho nangama-270 degrees.Ilensi ye-fisheye iyiqembu lokukhanya kwe-anti-telephoto elinokuhlanekezela okuningi kwemiphongolo.I-lens yangaphambili yale lens iphumele ngaphambili ngokuphambene, futhi ukuma kufana neso lenhlanzi, yingakho igama elithi "fisheye lens", futhi umphumela wayo wokubuka ufana nowenhlanzi ebuka izinto ngaphezu kwamanzi.
Ilensi ye-fisheye incike ekwethuleni ngokuzenzisa inani elikhulu lokuhlanekezelwa komgqomo ukuze ithole i-engeli enkulu yokubuka.Ngakho-ke, ngaphandle kwento emaphakathi nesithombe, ezinye izingxenye okufanele zibe imigqa eqondile zinokuhlanekezela okuthile, Okuholela emikhawulweni eminingi ekusetshenzisweni kwayo.Isibonelo, emkhakheni wezokuphepha, ilensi ye-fisheye ingangena esikhundleni samalensi amaningi ajwayelekile ukuze igade ububanzi.Njengoba i-engeli yokubuka ingafinyelela ku-180º noma ngaphezulu, cishe ayikho i-engeli efile yokuqapha.Kodwa-ke, ngenxa yokuhlanekezelwa kwesithombe, into inzima ukubonwa ngeso lomuntu, okunciphisa kakhulu ikhono lokuqapha;Esinye isibonelo sisemkhakheni wamarobhothi, amarobhothi azishintshayo adingeka ukuthi aqoqe ulwazi lwesithombe sezigcawu ezizungezile futhi akhombe ukuze enze izenzo ezihambisanayo.Uma kusetshenziswa ilensi ye-fisheye, ukusebenza kahle kweqoqo kunganyuswa izikhathi ezingu-2-4, kodwa ukuphambuka kwenza isofthiwe ibe nzima ukuyibona.Ngakho-ke sibona kanjani isithombe esivela kwilensi ye-fisheye?I-algorithm inikezwa ukukhomba izindawo zezinto ezisesithombeni.Kodwa futhi kunzima ukuqaphela ukuqashelwa kwehluzo eziyinkimbinkimbi ngenxa yobunkimbinkimbi bekhompyutha yesofthiwe.Ngakho-ke, indlela evamile manje ukuqeda ukuhlanekezela esithombeni ngokusebenzisa uchungechunge lwezinguquko, ukuze uthole isithombe esivamile bese usikhomba.
Ubudlelwano phakathi kwesiyingi sesithombe nenzwa bumi kanje:
Ekuqaleni, ama-lens e-fisheye ayesetshenziswa kuphela ezithombeni ngenxa yobuhle bawo obukhethekile ngenxa yokuhlanekezeka komgqomo akudala ngesikhathi sokuthwebula izithombe.Eminyakeni yamuva nje, ukusetshenziswa kwelensi ye-fisheye bekuvame ukusetshenziswa emkhakheni we-wide-angle imaging, impi, ukubhekwa, ukulingisa kwe-panoramic, ukuqagela okuyindilinga nokunye.Uma kuqhathaniswa namanye ama-lens, i-lens ye-fisheye inezinzuzo zesisindo esilula nosayizi omncane.
Isikhathi sokuthumela: Jan-29-2022
