Ngingabona kude kangakanani ngekhamera eshisayo?

Hhayi-ke, lo ngumbuzo ophusile kodwa ongenampendulo elula.Kunezici eziningi kakhulu ezingathinta imiphumela, njengokuncishiswa kwezimo zezulu ezihlukene, ukuzwela komtshina oshisayo, i-imaging algorithm, i-dead-point kanye nemisindo yaphansi yasemuva, kanye nomehluko wezinga lokushisa eliphokophelwe.Isibonelo, isinqe sikagwayi sibonakala ngokucace kakhulu kunamaqabunga esihlahleni esibangeni elifanayo ngisho noma sisincane kakhulu, ngenxa yomehluko ohlosiwe wezinga lokushisa eliqondisiwe.
Ibanga lokutholwa liwumphumela wenhlanganisela yezinto ezizimele kanye nezici ezihlosiwe.Kuhlobene nesayikholoji yokubuka yomuntu obukele, isipiliyoni kanye nezinye izici.Ukuphendula ukuthi “ikhamera eshisayo ingabona kude kangakanani”, kufanele sithole ukuthi isho ukuthini kuqala.Isibonelo, ukuthola okuqondiwe, kuyilapho u-A ecabanga ukuthi angabona ngokucacile, u-B angase angaboni.Ngakho-ke, kufanele kube nenhloso kanye nezinga lokuhlola elihlangene.

Imibandela kaJohnson
UJohnson uqhathanise inkinga yokutholwa kwamehlo namapheya emigqa ngokokuhlola.Ipheya yomugqa yibanga elihlisiwe phakathi kokukhanya okuhambisanayo kanye nolayini omnyama emkhawulweni wokuqaphela kokubukwa komuntu obukele.Ipheya yomugqa ilingana namaphikseli amabili.Ucwaningo oluningi lubonise ukuthi kuyenzeka ukunquma ikhono lokuqaphela okuqondiwe kwesistimu yesithombe esishisayo se-infrared ngokusebenzisa amapheya olayini ngaphandle kokucabangela imvelo yethagethi kanye nokukhubazeka kwesithombe.

Isithombe sethagethi ngayinye endizeni egxilile sithatha amaphikseli ambalwa, angabalwa kusukela kusayizi, ibanga phakathi kwethagethi nesithombe esishisayo, kanye nenkundla yokubuka esheshayo (IFOV).Isilinganiso sosayizi oqondiwe (d) nebanga (L) sibizwa ngokuthi i-engeli yokuvula.Ingahlukaniswa yi-IFOV ukuthola inani lamaphikseli athathwe isithombe, okungukuthi, n = (D / L) / IFOV = (DF) / (LD).Kungabonakala ukuthi uma ubude bendawo bukhulu, amaphuzu abalulekile athathwa isithombe esiqondiwe.Ngokombandela kaJohnson, ibanga lokutholwa likude.Ngakolunye uhlangothi, ubude bokugxila bukhulu, i-engeli yensimu incane, futhi izindleko zizoba phezulu.

Singakwazi ukubala ukuthi isithombe esishisayo esingabonwa kude kangakanani ngokusekelwe kuzinqumo ezincane ngokuya Ngemibandela KaJohnson yilezi:

Ukutholwa - into ekhona: 2 +1/-0.5 pixels
Ukuqaphela - uhlobo lwento ingabonakala, umuntu uma eqhathaniswa nemoto: 8 +1.6/-0.4 pixels
Ukuhlonza - into ethile ingabonwa, owesifazane vs. indoda, imoto ethize: 12.8 +3.2/-2.8 pixels
Lezi zilinganiso zinikeza ithuba elingu-50% lokuthi isibukeli sibandlulule into ezingeni elishiwo.


Isikhathi sokuthumela: Nov-23-2021