{"id":1084,"date":"2015-02-25T13:52:36","date_gmt":"2017-02-02T15:33:36","guid":{"rendered":"http:\/\/www.puigciutat.com\/?p=1084"},"modified":"2017-03-02T12:49:42","modified_gmt":"2017-03-02T11:49:42","slug":"photogrammetry","status":"publish","type":"post","link":"https:\/\/www.puigciutat.com\/en\/photogrammetry\/","title":{"rendered":"Photogrammetry"},"content":{"rendered":"<p>To analyse and document the best-preserved structures in the Puig Ciutat site in detail, several photogrammetric studies have been performed. This technique provides geometric, radiometric and semantic information about three-dimensional objects in reality, using different photographs taken from different points of view. The model generated, despite not having real measurements, does have relative measurements that can be converted to real measurements and even to geolocation points if backup markers on the ground are used. This technique produces a model of reality, first in the form of points and polygons and, subsequently, on a solid, textured surface. In this respect, photogrammetry not only provides volumes and 3D measurements, it also offers quality, accuracy and speed in the execution and obtention of large amounts of information.<\/p>\n\n\t<div class=\"slideshow_container slideshow_container_style-light\" data-slideshow-id=\"1085\" data-style-name=\"style-light\" data-style-version=\"2.5.20\" >\n\t\t<div class=\"slideshow_loading_icon\"><\/div>\n\t\t<div class=\"slideshow_content\" style=\"display: none;\">\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.puigciutat.com\/wp-content\/uploads\/2015\/01\/fotogr_1_2.jpg\" alt=\"Point clouds generated with the Agisoft Photoscan program\" width=\"1040\" height=\"500\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">Point clouds generated with the Agisoft Photoscan program<\/div>\t\t\t\t\t\t<div class=\"slideshow_description\">Here we see the angle and position of the photographs taken in one of the archaeological sectors excavated at Puig Ciutat<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.puigciutat.com\/wp-content\/uploads\/2015\/01\/fotogr_2_2.jpg\" alt=\"Low density point cloud\" width=\"1040\" height=\"500\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">Low density point cloud<\/div>\t\t\t\t\t\t<div class=\"slideshow_description\">Points located in space obtained by triangulation based on overlapping images with different viewpoints<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.puigciutat.com\/wp-content\/uploads\/2015\/01\/fotogr_3_2.jpg\" alt=\"Point cloud with colour information\" width=\"1040\" height=\"500\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">Point cloud with colour information<\/div>\t\t\t\t\t\t<div class=\"slideshow_description\">Colour taken from the photographs and applied to the points in space<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.puigciutat.com\/wp-content\/uploads\/2015\/01\/fotogr_4_2.jpg\" alt=\"Layered triangle mesh without texture\" width=\"1040\" height=\"500\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">Layered triangle mesh without texture<\/div>\t\t\t\t\t\t<div class=\"slideshow_description\">Triangle mesh generated by joining the points in the cloud.<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"slideshow_view\">\n\t\t\t\t<div class=\"slideshow_slide slideshow_slide_image\">\n\t\t\t\t\t\t\t\t\t\t\t<img src=\"https:\/\/www.puigciutat.com\/wp-content\/uploads\/2015\/01\/fotogr_5_2.jpg\" alt=\"3D mesh with texture\" width=\"1040\" height=\"500\" \/>\n\t\t\t\t\t\t\t\t\t\t<div class=\"slideshow_description_box slideshow_transparent\">\n\t\t\t\t\t\t<div class=\"slideshow_title\">3D mesh with texture<\/div>\t\t\t\t\t\t<div class=\"slideshow_description\">Texture generated from photographs taken in the field<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"slideshow_controlPanel slideshow_transparent\" style=\"display: none;\"><ul><li class=\"slideshow_togglePlay\" data-play-text=\"Play\" data-pause-text=\"Pause\"><\/li><\/ul><\/div>\n\t\t<div class=\"slideshow_button slideshow_previous slideshow_transparent\" role=\"button\" data-previous-text=\"Previous\" style=\"display: none;\"><\/div>\n\t\t<div class=\"slideshow_button slideshow_next slideshow_transparent\" role=\"button\" data-next-text=\"Next\" style=\"display: none;\"><\/div>\n\t\t<div class=\"slideshow_pagination\" style=\"display: none;\" data-go-to-text=\"Go to slide\"><div class=\"slideshow_pagination_center\"><\/div><\/div>\n\t<\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>To analyse and document the best-preserved structures in the Puig Ciutat site in detail, several photogrammetric studies have been performed. This technique provides geometric, radiometric and semantic information about three-dimensional objects in reality, using different photographs taken from different points of view. The model generated, despite not having real measurements, does have relative measurements that &hellip; <a href=\"https:\/\/www.puigciutat.com\/en\/photogrammetry\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Photogrammetry<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[46,257,64,260,40,55,261,54,259,122],"class_list":["post-1084","post","type-post","status-publish","format-standard","hentry","category-tecnica-en","tag-3d","tag-agisoft-photoscan","tag-archaeology","tag-mesh","tag-model","tag-photogrammetry","tag-point-cloud","tag-puig-ciutat","tag-texture","tag-virtual"],"_links":{"self":[{"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/posts\/1084","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/comments?post=1084"}],"version-history":[{"count":1,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/posts\/1084\/revisions"}],"predecessor-version":[{"id":1086,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/posts\/1084\/revisions\/1086"}],"wp:attachment":[{"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/media?parent=1084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/categories?post=1084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.puigciutat.com\/en\/wp-json\/wp\/v2\/tags?post=1084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}