{"id":1586,"date":"2012-04-09T09:25:22","date_gmt":"2012-04-09T08:25:22","guid":{"rendered":"http:\/\/www.keris-studio.fr\/blog\/?p=1586"},"modified":"2014-11-23T10:49:42","modified_gmt":"2014-11-23T09:49:42","slug":"hypr3d-test-sur-le-cairn-de-la-joselire","status":"publish","type":"post","link":"https:\/\/www.keris-studio.fr\/blog\/?p=1586","title":{"rendered":"3D-photo &#8211; Hypr3D\u2013123DCatch, test sur le cairn de la Joseli\u00e8re"},"content":{"rendered":"<p>Le cairn de la Joseli\u00e8re poss\u00e8de une forme complexe, les dalles sont tr\u00e8s irr\u00e9guli\u00e8res, mais de couleurs proches, il y a une imbrication formelle que les logiciels de photogramm\u00e9trie peinent \u00e0 r\u00e9soudre.<\/p>\n<h1>Le test Hypr3D<\/h1>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image221.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb219.png\" width=\"642\" height=\"453\" \/><\/a><\/p>\n<p>Les diff\u00e9rents formats sont extraits pour examen. L\u2019ouverture dans Sketchup confirme qu\u2019une partie de l\u2019arri\u00e8re plan a \u00e9t\u00e9 pris en compte et maill\u00e9.<\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image222.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb220.png\" width=\"642\" height=\"402\" \/><\/a><\/p>\n<p>Apr\u00e8s nettoyage&#8230;<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image223.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb221.png\" width=\"642\" height=\"225\" \/><\/a><\/p>\n<p>La confusion entre les diff\u00e9rents plans et surtout les plans lointains demande un gros nettoyage. A noter toutefois que ce test est r\u00e9alis\u00e9 sur un \u00e9chantillon faible de vues (17).<\/p>\n<p>Le nuage au format PLY contient les m\u00eames erreurs :<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image224.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb222.png\" width=\"642\" height=\"181\" \/><\/a><\/p>\n<p>Apr\u00e8s nettoyage, la fa\u00e7ade apparait :<\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image225.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb223.png\" width=\"642\" height=\"255\" \/><\/a><\/p>\n<p>Puis est maill\u00e9e :<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image226.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb224.png\" width=\"642\" height=\"268\" \/><\/a><\/p>\n<p>Le maillage brut doit ensuite \u00eatre compl\u00e9t\u00e9 et repris en plusieurs points.<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image227.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-right-width: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb225.png\" width=\"642\" height=\"232\" \/><\/a><\/p>\n<p>Le r\u00e9sultat donne une bonne approche, avec seulement 17 photos prises \u00e0 6-7 m par tr\u00e8s faible luminosit\u00e9. Il reste un effet \u201cplomb fondu\u201d du fait de la m\u00e9diocre r\u00e9solution des d\u00e9tails.<\/p>\n<p>Exploitation de l\u2019export DAE :<\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image238.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb236.png\" width=\"642\" height=\"230\" \/><\/a><\/p>\n<p>Le rendu avec texture donne un r\u00e9sultat visuel correct, m\u00eame si la g\u00e9om\u00e9trie n\u2019est que peu fid\u00e8le \u00e0 la r\u00e9alit\u00e9.<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image239.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb237.png\" width=\"642\" height=\"287\" \/><\/a><\/p>\n<h1>Le test 123DCatch<\/h1>\n<p>Avec le m\u00eame jeu de photos, le test est renouvel\u00e9 sur 123DCatch<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image240.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb238.png\" width=\"642\" height=\"31\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image241.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb239.png\" width=\"642\" height=\"245\" \/><\/a><\/p>\n<p>Les 17 vues sont reconnues et assembl\u00e9es. Le photor\u00e9alisme est impressionnant du fait de l\u2019utilisation d\u2019une vrai texture et non d\u2019une couleur par points.<\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image242.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb240.png\" width=\"642\" height=\"300\" \/><\/a><\/p>\n<p>Le mod\u00e8le 3D export\u00e9 au format OBJ poss\u00e8de un maillage assez dense, avec malgr\u00e9 tout, de grandes zones lacunaires.<a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image243.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb241.png\" width=\"642\" height=\"253\" \/><\/a><\/p>\n<p>Le rendu, du fait de la texture, donne une bonne impression de pr\u00e9cision.<\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image244.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb242.png\" width=\"642\" height=\"266\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image245.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; border-bottom: 0px; border-left: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; display: inline; border-top: 0px; border-right: 0px; padding-top: 0px\" title=\"image\" border=\"0\" alt=\"image\" src=\"https:\/\/www.keris-studio.fr\/blog\/wp-content\/image_thumb243.png\" width=\"642\" height=\"295\" \/><\/a><\/p>\n<p>Des prises de vue compl\u00e9mentaires compl\u00e8teront les zones lacunaires.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le cairn de la Joseli\u00e8re poss\u00e8de une forme complexe, les dalles sont tr\u00e8s irr\u00e9guli\u00e8res, mais de couleurs proches, il y a une imbrication formelle que les logiciels de photogramm\u00e9trie peinent \u00e0 r\u00e9soudre. Le test Hypr3D Les diff\u00e9rents formats sont extraits pour examen. L\u2019ouverture dans Sketchup confirme qu\u2019une partie de l\u2019arri\u00e8re plan a \u00e9t\u00e9 pris en &hellip; <a href=\"https:\/\/www.keris-studio.fr\/blog\/?p=1586\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">3D-photo &#8211; Hypr3D\u2013123DCatch, test sur le cairn de la Joseli\u00e8re<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,117,14,8,147],"tags":[152,150],"class_list":["post-1586","post","type-post","status-publish","format-standard","hentry","category-3d","category-archeologie","category-conception","category-methodologie","category-photomodelisation","tag-hypr3d","tag-joseliere"],"_links":{"self":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1586"}],"version-history":[{"count":4,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1586\/revisions"}],"predecessor-version":[{"id":5345,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1586\/revisions\/5345"}],"wp:attachment":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}