{"id":4652,"date":"2020-07-29T17:21:32","date_gmt":"2020-07-29T14:21:32","guid":{"rendered":"https:\/\/droneteam.lt\/?p=4652"},"modified":"2020-07-29T17:26:15","modified_gmt":"2020-07-29T14:26:15","slug":"fotogrametrija","status":"publish","type":"post","link":"https:\/\/droneteam.lt\/lt\/2020\/07\/29\/fotogrametrija\/","title":{"rendered":"Fotogrametrija"},"content":{"rendered":"<p>Fotogrammetrija atsirado ma\u017edaug XIX am\u017eiaus viduryje, beveik tuo pat metu kaip ir pati fotografija. Naudoti fotografijas topografiniams \u017eem\u0117lapiams kurti pirm\u0105 kart\u0105 pasi\u016bl\u0117 pranc\u016bz\u0173 ap\u017evalgininkas Dominique F. Arago ma\u017edaug 1840 m. Manoma, kad fotogrametrijos termin\u0105 suk\u016br\u0117 pr\u016bs\u0173 architektas Albrechtas Meydenbaueris, kuris j\u012f panaudojo savo 1867 m. Straipsnyje \u201eDie Photometrographie\u201c. Nors pirmieji fotogrametriniai prietaisai buvo i\u0161rasti XIX am\u017eiaus pabaigoje, tik 1940 m. \u012fvyko \u017eem\u0117lapi\u0173 k\u016brimo revoliucija, kuomet \u012f l\u0117ktuv\u0105 buvo imontuotas fotoaparatas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"720\" height=\"570\" src=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/Plane.jpg\" alt=\"\" class=\"wp-image-4653\" srcset=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/Plane.jpg 720w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/Plane-300x238.jpg 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>Tad, vis d\u0117lto kas ta fotogrametrija? Trumpai tariant \u2013 tai mokslas ir technologija apie matavimus i\u0161 nuotrauk\u0173 apie \u012fvairius fizinius objektus, bei aplink\u0105. Fotogrametrijos \u012fvestis yra nuotraukos, o i\u0161vestis da\u017eniausiai yra realaus objekto ar tam tikro \u017eem\u0117lapio, br\u0117\u017einys, matavimas arba 3D modelis. Daugelis \u017eem\u0117lapi\u0173, kuriuos \u0161iandien naudojame, yra sukurti i\u0161 orlaivi\u0173 daryt\u0173 nuotrauk\u0173 ir pasitelkus fotogrametrijos technologij\u0105<\/p>\n\n\n\n<p>Fotogrammetrij\u0105 galima klasifikuoti dviem tipais. Tai \u2013 aerometrin\u0117 ir ant\u017eemin\u0117 (arba artimo nuotolio) fotogrammetrija.<\/p>\n\n\n\n<p>Aerometrin\u0117s fotogrametrijos metu kamera da\u017eniausiai \u012fmontuojama \u012f orlaiv\u012f ir yra vertikaliai nukreipiama \u012f \u017eem\u0119. Kai orlaivis skrenda skryd\u017eio trajektorija, daromos kelios sutampan\u010dios \u017eem\u0117s vaizdo nuotraukos. Seniau, \u0161\u012f darb\u0105 da\u017eniausiai atlikdavo pilotuojami l\u0117ktuvai, ta\u010diau dabar daugelis smulkesni\u0173 projekt\u0173 yra atliekami naudojant bepilo\u010dius dronus. Tradici\u0161kai \u0161ios nuotraukos buvo apdorojamos stereotipiniu brai\u017eytuvu (\u012frankiu, leid\u017eian\u010diu operatoriui stereofoniniame ekrane pamatyti dvi nuotraukas vienu metu), ta\u010diau \u0161iandien jas pakeit\u0117 automatizuota programin\u0117 \u012franga. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"575\" src=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2-1024x575.png\" alt=\"\" class=\"wp-image-4654\" srcset=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2-1024x575.png 1024w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2-300x169.png 300w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2-768x432.png 768w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2-1536x863.png 1536w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/pix4d-raycloud-pix4dmapper-octoblique-2.png 1849w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Ant\u017eemin\u0117je ir artimo nuotolio fotogrametrijoje, duomenys \u2013 t.y nuotraukos yra surenkamos i\u0161 \u012fvairi\u0173 objekto rakurs\u0173. Paprastai tokio tipo fotogrametrija n\u0117ra topografin\u0117 &#8211; tai yra, i\u0161vestis n\u0117ra topografiniai produktai, tokie kaip reljefo modeliai ar topografiniai \u017eem\u0117lapiai, o br\u0117\u017einiai, 3D modeliai, matavimai ar \u201epoint clouds\u201c. Kasdienin\u0117s kameros ar dronai yra naudojamos modeliuojant ir matuoti pastatus, in\u017einerinius statinius, kriminalistikos ir avarij\u0173 scenas, \u017eem\u0117s darbus, t\u016brius, archeologinius artefaktus ir kt. Neretai bendruomen\u0117je \u0161i fotogrametrijos r\u016b\u0161is angli\u0161kai yra vadinama \u201eImage-Based Modeling\u201c. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"960\" height=\"540\" src=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/photogrammetry-1-1.jpg\" alt=\"\" class=\"wp-image-4657\" srcset=\"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/photogrammetry-1-1.jpg 960w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/photogrammetry-1-1-300x169.jpg 300w, https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/photogrammetry-1-1-768x432.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Fotogrammetrija atsirado ma\u017edaug XIX am\u017eiaus viduryje, beveik tuo pat metu kaip ir pati fotografija. Naudoti fotografijas topografiniams \u017eem\u0117lapiams kurti pirm\u0105 kart\u0105 pasi\u016bl\u0117 pranc\u016bz\u0173 ap\u017evalgininkas Dominique F. Arago ma\u017edaug 1840 m. Manoma, kad fotogrametrijos termin\u0105 suk\u016br\u0117 pr\u016bs\u0173 architektas Albrechtas Meydenbaueris, kuris j\u012f panaudojo savo 1867 m. Straipsnyje \u201eDie Photometrographie\u201c. Nors pirmieji [&hellip;]<\/p>","protected":false},"author":2,"featured_media":4658,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"jetpack_featured_media_url":"https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls.png","uagb_featured_image_src":{"full":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls.png",1219,1056,false],"thumbnail":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls-150x150.png",150,150,true],"medium":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls-300x260.png",300,260,true],"medium_large":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls-768x665.png",750,649,true],"large":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls-1024x887.png",750,650,true],"1536x1536":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls.png",1219,1056,false],"2048x2048":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls.png",1219,1056,false],"trp-custom-language-flag":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls.png",14,12,false],"hestia-blog":["https:\/\/droneteam.lt\/wp-content\/uploads\/2020\/07\/RubyFalls-360x240.png",360,240,true]},"uagb_author_info":{"display_name":"erikas","author_link":"https:\/\/droneteam.lt\/lt\/author\/erikas\/"},"uagb_comment_info":0,"uagb_excerpt":"Fotogrammetrija atsirado ma\u017edaug XIX am\u017eiaus viduryje, beveik tuo pat metu kaip ir pati fotografija. Naudoti fotografijas topografiniams \u017eem\u0117lapiams kurti pirm\u0105 kart\u0105 pasi\u016bl\u0117 pranc\u016bz\u0173 ap\u017evalgininkas Dominique F. Arago ma\u017edaug 1840 m. Manoma, kad fotogrametrijos termin\u0105 suk\u016br\u0117 pr\u016bs\u0173 architektas Albrechtas Meydenbaueris, kuris j\u012f panaudojo savo 1867 m. Straipsnyje \u201eDie Photometrographie\u201c. Nors pirmieji [&hellip;]","_links":{"self":[{"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/posts\/4652"}],"collection":[{"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/comments?post=4652"}],"version-history":[{"count":3,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/posts\/4652\/revisions"}],"predecessor-version":[{"id":4661,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/posts\/4652\/revisions\/4661"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/media\/4658"}],"wp:attachment":[{"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/media?parent=4652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/categories?post=4652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/droneteam.lt\/lt\/wp-json\/wp\/v2\/tags?post=4652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}