Yintoni iilensi yeliso lentlanziIlensi yeFisheye yilensi ebanzi kakhulu eneempawu ezimbini eziphambili: ubude obufutshane befocal kunye nombono obanzi. Igama layo eliqhelekileyo yi-"Fisheye lens".
Ukuze i-engile yokujonga yelensi ibonakale ingcono kakhulu, ilensi engaphambili yale lensi imfutshane kakhulu ububanzi kwaye ivuthuluka isiya phambili kwelensi ngendlela efana neyomfanekiso, efana kakhulu namehlo entlanzi, yiyo loo nto ibizwa ngokuba yi-"fisheye lens". Abantu babiza imifanekiso ethathwe yiyo ngokuthi "fisheye images".
Ibala lembono yelensi yefisheye likhulu kakhulu, kwaye isakhelo somfanekiso esiwuthathayo sinolwazi oluninzi kakhulu, ngoko ke akufuneki sijikeleze okanye siskene kwaye sinokusebenza ngendlela ejonge phezulu. Idityaniswe neenzuzo zobukhulu obuncinci kunye nokufihla okunamandla, ilensi yefisheye inexabiso elikhethekileyo lokusetyenziswa kwiindawo ezahlukeneyo.
1.Umgaqo welensi ye-fisheye
Xa iliso lomntu lijikeleza ukuze libone, i-engile yokujonga inokwandiswa iye kwiidigri ezili-188. Xa iliso lingajikelezi, i-engile yokujonga esebenzayo yidigri ezingama-25 kuphela. Njengelensi yekhamera eqhelekileyo (i-engile yokujonga yidigri ezingama-30-50), ilensi yeliso lomntu nayo igobile, ine-engile encinci yokujonga, kodwa inokubona izinto ezikude.
Ngokungafaniyo neliso lomntu, ilensi ekwiliso lentlanzi ingqukuva, ngoko ke nangona ingabona izinto ezikufutshane kuphela, ine-engile enkulu yokujonga (i-engile yokujonga ii-degrees ezili-180-270), oko kuthetha ukuba ingabona ngokubanzi.
Umgaqo wokwenza imifanekiso yelensi yefisheye
Iilensi eziqhelekileyo ezineekona ezibanzi zisebenzisa uyilo oluthe tye ukunciphisa ukugqwetheka.Iilensi zeFisheyeKwelinye icala, ngokuqhelekileyo zisebenzisa isakhiwo esingelulo ulayini. Iimpawu zomzimba zesi sakhiwo zimisela iimpawu zaso ezibanzi kakhulu kunezo zeelensi eziqhelekileyo, kodwa zikwakhokelela "ekugqwethekeni kwemigqomo" okungenakuphepheka.
Oko kukuthi, phantsi kwendawo efanayo, ubungakanani bolwazi olukufutshane nombindi womfanekiso we-fisheye lolona lukhulu kwaye uguquko lolona luncinci, ngelixa njengoko i-radius ikhula, ubungakanani bolwazi buyancipha kwaye uguquko luyanda kancinci kancinci.
Ukugqwethwa kweebhareli yikrele elintlangothi-mbini: kuphando lwesayensi, kwenziwa umgudu omkhulu ekulungiseni ukuze kufunyanwe amasimi ee-angle ezibanzi kakhulu ngelixa kunciphisa ukugqwethwa komfanekiso, ngelixa kumasimi anjengezobugcisa befilimu, ukugqwethwa kweebhareli kunokunika imifanekiso inkangeleko enesibindi neyodwa.
2.Imbali yeLensi yeFisheye
Imbali yeelensi zefisheye ingalandelwa emva ekuqaleni kwenkulungwane yama-20. Ngo-1906, isazinzulu sefiziksi saseMelika uRobert W. Wood saqala ukucebisa ingcamango yelensi yefisheye. Sasebenzisa iifisheye ukwenza imifanekiso engama-180° yomphezulu wamanzi ukusuka ezantsi kwamanzi. Sacinga ngokulinganisa indawo yokusebenza yeefisheyes saza sadala ilensi yefisheye enokwenza imifanekiso ye-hemispherical.
Ngo-1922, iWN Bond yaphucula "ilensi yefisheye" kaWood. Ngeminyaka yoo-1920, iilensi zefisheye zazisetyenziswa rhoqo kwi-meteorology ukufunda ukwakheka kwamafu ngenxa ye-engile yazo yokujonga ebanzi, eyayinokubamba isibhakabhaka sonke. Ngeminyaka yoo-1940, uRobin Hill wayidala ngokwenene ilensi yefisheye waza wayisebenzisela iinjongo zorhwebo. Waphucula ukukhanya okuhambelanayo kwelensi yefisheye waza wanciphisa inani le-F lenkqubo.
Ngeminyaka yoo-1960, ngenxa yokuveliswa ngobuninzi kweelensi ze-fisheye, iilensi ze-fisheye zazithandwa ziinkalo ezahlukeneyo kwaye zaqala ukuba yenye yeelensi eziphambili kwiimuvi, ezemidlalo ezigqithisileyo kunye nophando lwesayensi.
Iilensi ze-fisheye
Ekuqaleni kwenkulungwane yama-21, ukuthandwa kweekhamera zedijithali kunye nokuqhubela phambili kwetekhnoloji yokufota kwenzeiilensi zeliso lentlanzibaqala ukungena kwicandelo lokubona kwabathengi abaqhelekileyo. Kukho iimodeli ezininzi ezahlukeneyo kunye neempawu zeelensi ze-fisheye ezithengiswayo, ezinganeli nje ukuba nemiphumo ebanzi, kodwa zikwanazo nenkcazo ephezulu kunye nokuveliswa kombala, ezinokuhlangabezana neemfuno zabathandi bezithombe zomgangatho wemifanekiso.
3.Ukusetyenziswa kwelensi yefisheye
Iilensi zeFisheye zisetyenziswa kakhulu kwiindawo ezininzi ngenxa yoyilo lwazo olukhethekileyo lwe-optical kunye nokukwazi kwazo ukubamba ii-angles zokujonga ezibanzi kakhulu.
Izicelo zobugcisa befilimu
Ukusebenzisa ilensi yefisheye xa uthatha umfanekiso kuya kwenza abaphulaphuli bazive belahlekile kwaye bentywiliselwa. Umzekelo, xa umlinganiswa evuka ene-hangover enzima kwaye engaqinisekanga ukuba ukuphi, ilensi yefisheye inokubonisa umbono wehlabathi ogqwethekileyo kubaphulaphuli. Ukongeza, iilensi zefisheye nazo zibalulekile ekufotweni kwemiboniso efana neerekhodi zokhuseleko ezilinganisiweyo kunye nokujongwa kwemingxunya yokujonga iingcango ezichasene nobusela.
Okugqithisileyosamazibuko
Ilensi yefisheye iyimfuneko xa uthatha imidlalo eyingozi efana ne-skateboarding kunye ne-parkour. Ivumela umfoti ukuba abone ngokupheleleyo umskeyitha ngelixa egxile kwi-skateboard.
Iilensi zeFisheye zihlala zisetyenziselwa ukudubula imidlalo eyingozi
Ukubeka ilisoaizicelo
Ekubekeni iliso kukhuseleko, umbono we-engile ebanziiilensi zeliso lentlanziZingagubungela indawo ebanzi kwaye zisuse ezinye iindawo ezingabonakaliyo. Zingasetyenziselwa ukujonga iindawo ezinkulu, ezinje ngeeholo, ii-warehouse, iindawo zokupaka, njl.njl., ukubonelela ngezakhono zokujonga izinto ngokubanzi kunye nokuphucula ukusebenza kakuhle kokujonga kunye nokhuseleko. Umzekelo, ikhamera ye-fisheye efakwe kwivenkile enkulu inokujonga yonke indawo yokuthenga ngaphandle kokudibanisa iikhamera ezininzi eziqhelekileyo.
I-Virtualrubulungisa
Iilensi zeFisheye zingasetyenziselwa ukuthwebula imifanekiso okanye iividiyo zepanoramic zendalo, zibonelela ngemiboniso yomxholo engokoqobo ngakumbi kwi-virtual reality kunye neetekhnoloji ze-augmented reality. Iilensi zeFisheye zivumela abadali bomxholo weVR ukuba bathwebule umbono obanzi wehlabathi elibonakalayo, belinganisa umbono wendalo womntu kwaye bephucula ingqiqo iyonke yokuntywiliselwa. Umzekelo, kwicandelo lokhenketho olubonakalayo, iilensi zeFisheye zinokuthwebula imifanekiso yepanoramic, zithathe abasebenzisi ziye kwiindawo ezikude, kwaye zibonelele ngamava okuhamba anomdla.
Iifoto zasemoyeni kunye neefoto zedrone
Iilensi zeFisheye zikwaxhaphakile kwiifoto zasemoyeni nakwiifoto zedrone, ezinokuthatha uluhlu olubanzi lwemiboniso kwaye zibonelele ngemifanekiso enomtsalane nenomtsalane ngakumbi.
Iilensi zeFisheye zihlala zisetyenziselwa ukufota emoyeni kunye nokufota iidrone
Uphando lwezenzululwazi
Kwicandelo lophando lwesayensi, iilensi ze-fisheye zikwasetyenziswa kakhulu ekuhloleni i-geological, ukujonga iinkwenkwezi, imifanekiso yezonyango, njl.njl., kwaye zinokubonelela ngedatha nolwazi olupheleleyo.
Iilensi zeFisheyeinokubonelela ngamava ahlukileyo okubona kunye noluhlu olubanzi lokujonga, kwaye ziyinxalenye ebalulekileyo yetekhnoloji yokubona yanamhlanje. Ngokuqhubeka kweteknoloji, ukusetyenziswa kweelensi ze-fisheye kuya kuba kubanzi ngakumbi, nto leyo eza kuzisa lula kunye nobuchule obungakumbi kubomi bethu nasemsebenzini wethu.
Iingcinga Zokugqibela:
UChuangAn wenze uyilo lokuqala kunye nokuveliswa kweelensi ze-fisheye, ezisetyenziswa kakhulu kwiinkalo ezahlukeneyo. Ukuba unomdla okanye uneemfuno zeelensi ze-fisheye, nceda unxibelelane nathi ngokukhawuleza.
Ixesha leposi: Julayi-08-2025
