{"id":22868,"date":"2025-12-29T11:54:44","date_gmt":"2025-12-29T10:54:44","guid":{"rendered":"https:\/\/lpg-umr6112.fr\/?post_type=tribe_events&#038;p=22868"},"modified":"2026-03-10T15:38:13","modified_gmt":"2026-03-10T14:38:13","slug":"seminar-by-benoit-seignovert-lpg","status":"publish","type":"tribe_events","link":"https:\/\/lpg-umr6112.fr\/en\/event\/seminar-by-benoit-seignovert-lpg\/","title":{"rendered":"S\u00e9minaire &#8220;Le dessous des cartes plan\u00e9taires&#8221; par Beno\u00eet Seignovert (UARO)"},"content":{"rendered":"<p>L&#8217;imagerie satellitaire est un gros producteur de donn\u00e9es utilis\u00e9es dans de nombreux domaines d&#8217;activit\u00e9s. Des satellites comme Pl\u00e9iades sur Terre, LRO sur la Lune ou HiRISE sur Mars sont d&#8217;ores et d\u00e9j\u00e0 capable de produire des images d&#8217;une trentaine de centim\u00e8tres de r\u00e9solution, de quoi cr\u00e9er des mosa\u00efques de plusieurs peta-pixels \u00e0 l&#8217;\u00e9chelle globale; qu&#8217;il faut stocker, mettre \u00e0 jour et distribuer aux utilisateurs. Manipuler de tel volume de fichiers impose d&#8217;utiliser des formats et des technologies qui permettent de rendre ces cartes accessibles \u00e0 la fois pour des centres de calcul mais aussi pour des t\u00e9l\u00e9phones mobiles.<br \/>\nDans cet expos\u00e9, nous nous int\u00e9resserons dans un premier temps \u00e0 la production de ces mega-cartes globales et aux enjeux li\u00e9s \u00e0 leurs stockages. Nous verrons ensuite comment ces cartes sont distribu\u00e9es de mani\u00e8re efficace pour les utilisateurs par pyramidage statique ou dynamique. Enfin nous nous pencherons sur les nouveaux protocoles optimis\u00e9s pour le cloud (COG, GeoParquet, \u2026) qui sont aujourd&#8217;hui n\u00e9cessaire pour passer \u00e0 l&#8217;\u00e9chelle plan\u00e9taire.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;imagerie satellitaire est un gros producteur de donn\u00e9es utilis\u00e9es dans de nombreux domaines d&#8217;activit\u00e9s. Des satellites comme Pl\u00e9iades sur Terre, LRO sur la Lune ou HiRISE sur Mars sont d&#8217;ores [&hellip;]<\/p>\n","protected":false},"author":172,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"_tribe_events_status":"","_tribe_events_status_reason":"","_tribe_events_is_hybrid":"","_tribe_events_is_virtual":"","_tribe_events_virtual_video_source":"","_tribe_events_virtual_embed_video":"","_tribe_events_virtual_linked_button_text":"","_tribe_events_virtual_linked_button":"","_tribe_events_virtual_show_embed_at":"","_tribe_events_virtual_show_embed_to":[],"_tribe_events_virtual_show_on_event":"","_tribe_events_virtual_show_on_views":"","_tribe_events_virtual_url":"","footnotes":"","_tec_slr_enabled":"","_tec_slr_layout":""},"tags":[],"tribe_events_cat":[25,22],"coauthors":[252],"class_list":["post-22868","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-amphitheatre","tribe_events_cat-seminaires","cat_amphitheatre","cat_seminaires"],"acf":[],"ticketed":false,"_links":{"self":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tribe_events\/22868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/users\/172"}],"version-history":[{"count":3,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tribe_events\/22868\/revisions"}],"predecessor-version":[{"id":24695,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tribe_events\/22868\/revisions\/24695"}],"wp:attachment":[{"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/media?parent=22868"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tags?post=22868"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/tribe_events_cat?post=22868"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/lpg-umr6112.fr\/en\/wp-json\/wp\/v2\/coauthors?post=22868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}