Njengobuchwepheshe bokuhlola ngokubona, ubuchwepheshe bokulinganisa izithombe budinga ukufeza ukulinganisa okulinganiselwe. Ukunemba kokulinganisa bekulokhu kuyinkomba ebalulekile elandelwa yilobu buchwepheshe. Izinhlelo zokulinganisa izithombe zivame ukusebenzisa amadivayisi ezinzwa zezithombe njenge-CCD ukuthola ulwazi lwesithombe, ziwaguqule abe amasignali edijithali bese ziwaqoqa zibe yikhompyutha, bese zisebenzisa ubuchwepheshe bokucubungula izithombe ukucubungula amasignali ezithombe zedijithali ukuthola izithombe ezahlukahlukene ezidingekayo. Ukubalwa kwamaphutha osayizi, ukuma kanye nesikhundla kufezwa ngokusebenzisa amasu okulinganisa ukuguqula ulwazi losayizi wesithombe ohlelweni lokuxhumanisa izithombe lube ulwazi losayizi wangempela.
Eminyakeni yamuva nje, ngenxa yentuthuko esheshayo yamandla okukhiqiza ezimbonini kanye nokuthuthukiswa kobuchwepheshe bokucubungula, kuye kwavela inani elikhulu lemikhiqizo enobukhulu obubili obukhulu, okungukuthi ubukhulu obukhulu nobukhulu obuncane. Isibonelo, ukulinganisa ubukhulu bangaphandle bezindiza, ukulinganisa izingxenye ezibalulekile zemishini emikhulu, ukulinganisa i-EMU. Ukulinganisa ubukhulu obubucayi bezingxenye ezincane Umkhuba wokwenza kube lula kwamadivayisi ahlukahlukene, ukulinganisa ubukhulu obuncane obubalulekile kuma-microelectronics kanye ne-biotechnology, njll., konke kuletha imisebenzi emisha ukuhlola ubuchwepheshe. Ubuchwepheshe bokulinganisa isithombe bunobubanzi bokulinganisa. Kunzima kakhulu ukusebenzisa izilinganiso zendabuko zemishini ezikalini ezinkulu nezincane. Ubuchwepheshe bokulinganisa isithombe bungakhiqiza ingxenye ethile yento elinganisiwe ngokwezidingo zokunemba. Hlehlisa noma sondeza ukuze ufeze imisebenzi yokulinganisa engenakwenzeka ngezilinganiso zemishini. Ngakho-ke, kungakhathaliseki ukuthi ukulinganisa okukhulu noma ukulinganisa okuncane, indima ebalulekile yobuchwepheshe bokulinganisa isithombe isobala.
Ngokuvamile, sibhekisela ezingxenyeni ezinobukhulu obusukela ku-0.1mm kuya ku-10mm njengezingxenye ezincane, futhi lezi zingxenye zichazwa emhlabeni jikelele njengezingxenye ze-mesoscale. Izidingo zokunemba zalezi zingxenye ziphakeme kakhulu, ngokuvamile ezingeni le-micron, futhi isakhiwo siyinkimbinkimbi, futhi izindlela zokuthola zendabuko kunzima ukuhlangabezana nezidingo zokulinganisa. Izinhlelo zokulinganisa izithombe seziyindlela evamile ekulinganisweni kwezingxenye ezincane. Okokuqala, kumele sithathe isithombe sengxenye evivinywayo (noma izici ezibalulekile zengxenye evivinywayo) ngelensi yokukhanya enokukhulisa okwanele kunzwa yesithombe ehambisanayo. Thola isithombe esiqukethe ulwazi lwethagethi yokulinganisa ehlangabezana nezidingo, bese uqoqa isithombe kukhompyutha ngekhadi lokuthola isithombe, bese wenza ukucubungula isithombe nokubala ngekhompyutha ukuze uthole umphumela wokulinganisa.
Ubuchwepheshe bokulinganisa izithombe emkhakheni wezingxenye ezincane bunezindlela ezilandelayo zokuthuthukiswa: 1. Ukuthuthukisa ukunemba kokulinganisa. Ngokuthuthuka okuqhubekayo kwezinga lezimboni, izidingo zokunemba zezingxenye ezincane zizothuthukiswa kakhulu, ngaleyo ndlela kuthuthukiswe ukunemba kokunemba kokulinganisa ubuchwepheshe bokulinganisa izithombe. Ngesikhathi esifanayo, ngokuthuthukiswa okusheshayo kwamadivayisi ezinzwa zesithombe, amadivayisi anesinqumo esiphezulu nawo adala izimo zokuthuthukisa ukunemba kohlelo. Ngaphezu kwalokho, ucwaningo olwengeziwe ngobuchwepheshe be-sub-pixel kanye nobuchwepheshe be-super-resolution luzophinde lunikeze ukwesekwa kobuchwepheshe bokuthuthukisa ukunemba kohlelo.
2. Thuthukisa ukusebenza kahle kokulinganisa. Ukusetshenziswa kwezingxenye ezincane embonini kukhula ezingeni lejiyometri, imisebenzi yokulinganisa esindayo yamamodeli okulinganisa angaphakathi komugqa angu-100% kanye nokukhiqiza idinga ukulinganisa okusebenzayo. Ngokuthuthuka kwamakhono ehadiwe afana namakhompyutha kanye nokwenza ngcono okuqhubekayo kwama-algorithms okucubungula izithombe, ukusebenza kahle kwezinhlelo zezinsimbi zokulinganisa izithombe kuzothuthukiswa.
3. Qaphela ukuguqulwa kwengxenye encane kusuka kwimodi yokulinganisa iphuzu kuya kwimodi yokulinganisa iyonke. Ubuchwepheshe bethuluzi lokulinganisa isithombe elikhona bunqunyelwe ukunemba kokulinganisa, futhi ngokuyisisekelo faka isithombe sendawo yesici esiyinhloko engxenyeni encane, ukuze kufezwe ukulinganiswa kwephuzu lesici esiyinhloko, futhi kunzima ukulinganisa yonke i-contour noma lonke iphuzu lesici.
Ngokuthuthukiswa kokunemba kokulinganisa, ukuthola isithombe esiphelele sengxenye kanye nokufinyelela ekulinganisweni okunembile kwephutha lesimo lilonke kuzosetshenziswa emikhakheni eminingi.
Ngamafuphi, emkhakheni wokulinganisa izingxenye ezincane, ukusebenza kahle okuphezulu kobuchwepheshe bokulinganisa izithombe obunembile ngokungenakugwenywa kuzoba yindlela ebalulekile yokuthuthukiswa kobuchwepheshe bokulinganisa ngokunembile. Ngakho-ke, uhlelo lwehadiwe lokuthola izithombe luthole izidingo eziphakeme zekhwalithi yesithombe, ukubeka umphetho wesithombe, ukulinganiswa kwesistimu, njll., futhi lunamathuba amaningi okusebenzisa kanye nokubaluleka okubalulekile kocwaningo. Ngakho-ke, lobu buchwepheshe sebuyindawo yokucwaninga ekhaya nakwamanye amazwe, futhi sebube ngenye yezinhlelo zokusebenza ezibaluleke kakhulu kubuchwepheshe bokuhlola okubonakalayo.
Isikhathi sokuthunyelwe: Meyi-16-2022