Iindaba-Ubude bengqwalasela buzichaphazela njani iziphumo ze-3D zemodeli

Ubude bengqwalasela buchaphazela njani iziphumo ze-3D zemodeli

1. Intshayelelo

Ukufota nge-oblique, kukho imiboniso emine ekunzima kakhulu ukwakha iimodeli ze-3D:

Umphezulu obonakalisayo ongenakubonisa ulwazi lokwenyani lokuthungwa kwento.Umzekelo, umphezulu wamanzi, iglasi, indawo enkulu izakhiwo zomphezulu wezakhiwo.

Izinto ezihamba kancinci. Umzekelo, iimoto kwiindawo zokuhlangana

Imiboniso apho iifitsha zingenako ukudityaniswa okanye iindawo ezihambelanayo zineempazamo ezinkulu, njengemithi namatyholo.

Izakhiwo ezintsonkothileyo ezinomgongxo. Njengeentsimbi zokugada, izikhululo ezisisiseko, iinqaba, iingcingo, njl.

Ngohlobo lwe-1 kunye ne-2 izigcawu, kungakhathaliseki ukuba uphucula njani umgangatho wedatha yokuqala, imodeli ye-3D ayiyi kuphucula nantoni na.

Kuhlobo lwe-3 kunye nohlobo lwe-4 izigcawu, kwimisebenzi yangempela, unokuphucula umgangatho wemodeli ye-3D ngokuphucula isisombululo, kodwa kuselula kakhulu ukuba ne-voids kunye nemingxuma kwimodeli, kwaye ukusebenza kwayo kuya kuba kuphantsi kakhulu.

Ukongeza kwezi zigcawu ezikhethekileyo ezingentla, kwinkqubo yokulinganisa i-3D, into esiyinikela ingqalelo ngakumbi kumgangatho we-3D wemodeli yezakhiwo. Ngenxa yeengxaki ezinxulumene nokucwangcisa iiparamitha zendiza, iimeko zokukhanya, izixhobo zokufumana idatha, isoftware yemodeli ye-3D, njl., Kukwalula ukwenza ukuba isakhiwo sibonise: ukuphefumla, ukudweba, ukunyibilika, ukuchithwa, ukuguqulwa, ukunamathela, njl. .

Ewe kunjalo, ezi ngxaki zikhankanywe ngasentla zinokuphuculwa yi-3D model-modify. Nangona kunjalo, ukuba ufuna ukwenza umsebenzi omkhulu wokuguqula imodeli, ixabiso lemali kunye nexesha liya kuba likhulu kakhulu.

Imodeli ye-3D ngaphambi kokuguqulwa

Imodeli ye-3D emva kokuguqulwa

Njengomenzi we-R & D weekhamera ze-oblique, i-Rainpoo icinga ngokwembono yokuqokelela idatha:

Indlela yokuyila ikhamera ye-oblique ukuphucula ngempumelelo umgangatho wemodeli ye-3D ngaphandle kokunyusa ukugqithiswa kwendlela yendiza okanye inani leefoto?

2, Yintoni ubude bojoliso

Ubude be-lens bubaluleke kakhulu iparameter.Inquma ubungakanani besifundo kwi-imaging medium, elingana nomlinganiselo wento kunye nomfanekiso. Xa usebenzisa ikhamera emile yedijithali (DSC), isivamvo ikakhulu ziiCCD kunye neCMOS. Xa i-DSC isetyenziswa kuvavanyo lwasemoyeni, ubude bojoliso bumisela umgama wesampulu yomhlaba (GSD).

Xa udubula into efanayo ekujoliswe kuyo kumgama ofanayo, sebenzisa i-lens enobude obude obugxininisekileyo, umfanekiso wale nto mkhulu, kwaye i-lens enobude obufutshane obuncinane.

Ubude bengqwalasela bumisela ubungakanani bento emfanekisweni, i-engile yokujonga, ubunzulu bebala kunye nembono yomfanekiso. Ngokuxhomekeke kwisicelo, ubude obugxilwe bunokwahluka kakhulu, ukusuka kwi-mm ezimbalwa ukuya kwiimitha ezimbalwa. Ngokubanzi, ukufota emoyeni, sikhetha, sikhetha ubude obugxile kuluhlu lwe-20mm ~ 100mm.

3, Yintoni iFOV

Kwi-lens ye-optical, i-angle eyenziwe ngumbindi we-lens njenge-apex kunye noluhlu oluphezulu lomfanekiso wento enokuthi idlule kwi-lens ibizwa ngokuba yi-angle yokujonga. I-FOV inkulu, incinci i-optical magnification. Ngokwemiqathango, ukuba into ekujoliswe kuyo ayikho ngaphakathi kwe-FOV ukukhanya okubonakaliswe okanye okukhutshwe yinto ayiyi kungena kwi-lens kwaye umfanekiso awuyi kwakhiwa.

4, Ubude bokujolisa&FOV

Kubude obugxininise bekhamera ye-oblique, kukho ukungaqondi kakuhle okubini okuqhelekileyo:

1) Okukhona ubude bojoliso bubude, kokukhona ukuphakama kwenqwelomoya yeedrone, kwaye inkulu indawo enokuthi igqunywe ngumfanekiso;

2) Ubude obude bokugxila, inkulu indawo yokugubungela kwaye iphezulu ukusebenza kakuhle;

Isizathu soku kungaqondani kubini kungasentla kukuba umdibaniso phakathi kobude befocal neFOV awuqatshelwa. Umdibaniso phakathi kwezi zimbini: ubude ubude befocal, incinci iFOV; imfutshane ubude bojoliso, kokukhona iFOV inkulu.

Ngoko ke, xa ubungakanani bomzimba besakhelo, isisombululo sesakhelo, kunye nesisombululo sedatha siyafana, utshintsho kubude obugxininisekile buya kutshintsha kuphela ukuphakama kwendiza, kwaye indawo egqunywe ngumfanekiso ayitshintshi.

5, Ubude bokujolisa kunye noKusebenza ngokuSebenzayo

Emva kokuqonda umdibaniso phakathi kobude befocal kunye neFOV, usenokucinga ukuba ubude bojoliso lobude abunampembelelo ekusebenzeni kakuhle kwenqwelomoya. Kwi-Ortho-photogrammetry, ichanekile ngokwentelekiso (ngokungqongqo, xa ubude bomgqaliselo, buphezulu. ukuphakama kwendiza, amandla amaninzi adlayo, ixesha elifutshane lokuhamba ngenqwelomoya kwaye lisezantsi ukusebenza kakuhle).

Ukufota i-oblique, ixesha elide ubude bogxininiso, iyancipha ukusebenza kakuhle.

I-lens ye-oblique yekhamera ibekwe ngokubanzi kwi-angle ye-45 °, ukwenzela ukuba kuqinisekiswe ukuba idatha yomfanekiso we-edge ye-facade yendawo ekujoliswe kuyo iqokelelwe, indlela yendiza kufuneka yandiswe.

Ngenxa yokuba i-lens ibophelelekile kwi-45 °, unxantathu ochanekileyo we-isosceles uya kwenziwa. Ukucinga ukuba isimo sengqondo sokubhabha kwe-drone asithathelwa ngqalelo, i-axis ye-optical ephambili ye-oblique lens ithathwa nje ukuya kumda wendawo yokulinganisa njengemfuneko yokucwangcisa indlela, emva koko indlela ye-drone yandisa umgama EQUAL ukuya kubude bendiza ye-drone. .

Ngoko ke ukuba indawo yokugubungela umzila ayitshintshanga, indawo yokwenyani yokusebenza yelensi yobude obufutshane obugxininisiweyo inkulu kunaleyo yelensi ende.