Nyaya yekubudirira ye oblique photography

Mhosva yekubudirira ye oblique kutora mafoto

--Shandisa 3D modhi kuita cadastral ongororo yenzvimbo dzakakwirira

1. Muchidimbu

Mushure memakore akati wandei ebudiriro, iko zvino kuChina, kutora mafoto oblique kwave kushandiswa zvakanyanya mumapurojekiti ekumaruwa cadastral ongororo. Nekudaro, nekuda kwekudziviswa kwemidziyo yehunyanzvi mamiriro, oblique kutora mafoto kuchiri kusimba pakuyera kwecadastral yezviratidziro zvakakura-kudonhedza, kunyanya nekuti iyo yakatarisana nehurefu hwemifananidzo yeoblique kamera lens haisi kusvika pachiyero. Mushure memakore mazhinji echiitiko cheprojekiti, takaona kuti kurongeka kwemepu kunofanirwa kunge kuri mukati me5cm, ipapo GSD inofanira kunge iri mukati me2cm, uye iyo 3D modhi inofanirwa kunge yakanaka kwazvo, mipendero yechivako inofanirwa kuve yakatwasuka uye yakajeka.

Kazhinji, iyo kamera yekutarisa kureba inoshandiswa kumaruwa cadastral kuyerwa mapurojekiti ndeye 25mm muyakatwasuka uye 35mm oblique. Kuti uwane kurongeka kwe1:500, iyo GSD inofanirwa kunge iri mukati me2 cm. Uye kuve nechokwadi chekuti, kukwira kwendege kwemadrones kunowanzo kuve pakati pe70m-100m. Maererano nehurefu hwendege iyi, hapana nzira yekupedzisa kuunganidzwa kwedata kwe100m-pamusoro-yakakwirira zvivakwa.Kunyange kana iwe ukaita ndege zvakadaro, haigone kuvimbisa kupindirana kwematenga, zvichikonzera hurombo husina kunaka hwemuenzaniso. .Uye nekuti kureba kwekurwa kwakadzikira, kune njodzi kuUAV.

Kuti tigadzirise dambudziko iri, muna Chivabvu 2019, takaita bvunzo yechokwadi yeOblique Photography yezvivakwa zvemudhorobha. Chinangwa chebvunzo iyi ndechekuona kana iyo yekupedzisira mepu yechokwadi yemhando ye3D yakavakwa neRIY-DG4pros oblique kamera inogona kusangana nezvinodiwa zve5 cm RMSE.

2. Kuedza nzira

Equipment

Muyedzo iyi, tinosarudza iyo DJI M600PRO, ine iyo Rainpoo RIY-DG4pros oblique mashanu-lens kamera.

Kuongorora nzvimbo uye kudzora nzvimbo kuronga

Tichipindura matambudziko ari pamusoro, uye kuti tiwedzere kuomerwa, isu takanyatsosarudza maseru maviri ane avhareji yekureba yekuvaka yemamita zana ekuedzwa.

Kudzora mapoinzi anosetwa zvinoenderana neGOOGLE mepu, uye nharaunda yakatenderedza inofanirwa kunge yakavhurika uye isina kuvharika sezvinobvira. Nharaunda pakati pemapoinzi iri muhuwandu hwe150-200M.

Iyo yekudzora nzvimbo ndeye 80 * 80 sikweya, yakakamurwa kuita tsvuku uye yero zvinoenderana neiyo diagonal, kuitira kuti ive nechokwadi chekuti nzvimbo yepakati inogona kunyatsozivikanwa kana kuratidzwa kwanyanya kusimba kana kuvhenekera kusina kukwana, kuvandudza iko kurongeka.

UAV Route Planning

Kuti tive nechokwadi chekuchengetedzwa kwekushanda, takachengetedza nzvimbo yakachengeteka yemamita makumi matanhatu, uye UAV yakabhururuka pamamita 160. Kuti tive nechokwadi chekupindirana kwedenga, isu takawedzerawo kupindirana. The longitudinal overlaping rate i85% uye transversal overlaping rate i80%, uye UAV yakabhururuka pa9.8m/s speed.

Aerial Triangulation (AT) mushumo

Shandisa "Sky-Scanner" (Yakagadziridzwa neRainpoo) software kudhawunirodha uye kufanogadzirisa iwo mafoto ekutanga, wobva waapinza muContextCapture 3D modelling software nekiyi imwe.

15h.

Panguva:15h.
23h.

3D modelling

nguva: 23h.

Lens distortion report

Kubva pane dhiyabhorosi yegridhi dhizaini, zvinogona kuoneka kuti lens kukanganisa kweRIY-DG4pros idiki zvakanyanya, uye denderedzwa rinenge rakanyatsoenderana neyakajairwa sikweya;

Reprojection kukanganisa RMS

Nekuda kweiyo optical tekinoroji yeRainpoo, isu tinokwanisa kudzora kukosha kweRMS mukati me 0.55, iyo yakakosha parameter kukururama kweiyo 3D modhi.

Kuwiriranisa kweshanu-lens

Zvinogona kuonekwa kuti chinhambwe chiri pakati penzvimbo huru yepakati vertical lens uye poindi huru ye oblique lenses ndeiyi: 1.63cm, 4.02cm, 4.68cm, 7.99cm, kubvisa iyo chaiyo mutsauko wenzvimbo, iwo kukanganisa ukoshi ndeiyi: - 4.37cm, -1.98cm, -1.32cm, 1.99cm, musiyano mukuru wenzvimbo ndeye 4.37cm, kuwirirana kwekamera kunogona kudzorwa mukati me5ms;

Nyora kukanganisa

Iyo RMS yezvakafanotaurwa uye chaiyo yekudzora mapoinzi kubva ku0.12 kusvika 0.47 pixels.

3. 3D modelling

Model Display

Detail show

Isu tinogona kuzviona nekuti iyo RIY-DG4pros inoshandisa refu yakatarisa kureba lenzi, imba iri pazasi peiyo 3d modhi inonyatso kujeka kuona. Iyo yakaderera yekuratidzwa nguva yekupindirana kwekamera inogona kusvika 0.6s, saka kunyangwe iyo longitudinal yakawedzera kupindirana chiyero ichikwira kusvika 85%, hapana foto-leakage inoitika.
Mitsara yezvivakwa zvepamusoro-soro yakajeka uye yakanyatsojeka, iyo inovimbisawo kuti tinogona kuwana mamwe matsimba etsoka pamuenzaniso gare gare.

4. Kunyatsoongorora

Isu tinoshandisa chiteshi chese kuunganidza iyo data yenzvimbo yecheki-mapoinzi uye tozopinza iyo DAT faira muCAD. Wobva waenzanisa zvakananga mapoinzi chinzvimbo data pane modhi kuti uone kusiyana kwavo.
Isu tinoshandisa chiteshi chese kuunganidza iyo data yenzvimbo yecheki-mapoinzi uye tozopinza iyo DAT faira muCAD. Wobva waenzanisa zvakananga mapoinzi chinzvimbo data pane modhi kuti uone kusiyana kwavo.

5. Mhedziso

Mumuedzo uyu, kuoma ndekwekuti kudonha kwepamusoro uye kuderera kwechiitiko, kukwirira kweimba uye pasi yakaoma. Zvinhu izvi zvichaita kuti kuwedzere kuoma kwekubhururuka , njodzi yakakwirira, uye yakaipisisa 3D muenzaniso , izvo zvichaita kuti kuderera kwekururama mu cadastral tsvakurudzo.

Nekuda kwekuti RIY-DG4pros focal kureba kureba kupfuura akajairwa oblique makamera, inoita kuti UAV yedu ikwanise kubhururuka panzvimbo yakachengeteka yakaringana, uye kuti kugadzirisa kwemufananidzo kwezvinhu zvepasi kuri mukati me 2 cm. Panguva imwecheteyo, iyo yakazara-frame lens inogona kutibatsira kutora makona akawanda edzimba patinenge tichibhururuka munzvimbo dzakakwirira-density yekuvaka, nokudaro kuvandudza kunaka kwemuenzaniso we3D. Pasi pechifungidziro chekuti zvese zvishandiso zvehardware zvakavimbiswa, isu zvakare tinovandudza kupindirana kwendege uye kugovera density yemapoinzi ekudzora kuti tive nechokwadi chechokwadi cheiyo 3D modhi.

oblique mafoto enzvimbo dzakakwirira dzecadastral ongororo, kamwe chete nekuda kwekugumira kwemidziyo uye kushaya ruzivo, zvinogona kuyerwa chete nenzira dzechinyakare. Asi pesvedzero yezvivakwa zvepamusoro-soro pachiratidzo cheRTK zvakare inokonzeresa kuoma uye kusarongeka kwechiyero. Kana isu tikakwanisa kushandisa UAV kuunganidza data, pesvedzero yezviratidzo zvesatellite inogona kubviswa zvachose, uye kurongeka kwese kwechiyero kunogona kuvandudzwa zvikuru. Saka kubudirira kwemuedzo uyu kune kukosha kukuru kwatiri.

Muedzo uyu unoratidza kuti RIY-DG4pros inogona kudzora iyo RMS kune diki diki kukosha, ine yakanaka 3D yekuenzanisira kurongeka, uye inogona kushandiswa mukuyera kuyera mapurojekiti ezvivakwa zvepamusoro.

Zvakapfuura:Chii chiri kushanda zvakanaka kweDG4Pros? Ndinoisa sei maparameter akakodzera?

Zvinotevera:Kuti chromatic aberration uye kukanganisa kunokanganisa sei ima

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