Cette th\u00e8se vise \u00e0 d\u00e9velopper des m\u00e9thodes de traitement des images radar \u00e0 synth\u00e8se d’ouverture terrestre (GB-SAR) pour d\u00e9tecter et pr\u00e9dire les chutes de blocs rocheux. Elle s’appuie sur la base de donn\u00e9es acquises sur la falaise du Saint-Eynard dans le cadre du projet ANR C2R-IA pilot\u00e9 par le BRGM. Les images radar acquises toutes les 30 minutes par le GB-SAR install\u00e9 depuis f\u00e9vrier 2024 permettent d’observer deux types d’\u00e9volutions : d’une part les petites d\u00e9formations de surface li\u00e9es aux mouvements des parois rocheuses par interf\u00e9rom\u00e9trie (diff\u00e9rence de phase) et d’autre part les changements abrupts du coefficient de r\u00e9trodiffusion (amplitude de l’image) lorsqu’un bloc s’est d\u00e9tach\u00e9. Des traitements relativement basiques sont aujourd’hui appliqu\u00e9s par le logiciel fourni avec le GB-SAR et une expertise importante est n\u00e9cessaire pour d\u00e9tecter les ph\u00e9nom\u00e8nes recherch\u00e9s. L’ambition de cette th\u00e8se est de proposer des m\u00e9thodes automatiques et robustes de d\u00e9tection des signaux pr\u00e9curseurs et des \u00e9v\u00e8nements dans les s\u00e9ries temporelles d’images GB-SAR. Les mesures et les d\u00e9tections fournies par les autres instruments (appareil photo, lidar\u0085) install\u00e9s sur ce site permettront d’\u00e9valuer et valider les m\u00e9thodes propos\u00e9es.<\/p>\n
Directeur de th\u00e8se : Emmanuel Trouv\u00e9<\/span><\/p>\n Laboratoire :\u202f<\/span> Laboratoire d’Informatique, Syst\u00e8mes, Traitement de l’Information et de la Connaissance (LISTIC)<\/p>\n Axe : Services et Industries du Futur ; Interactions Homme-Environnement<\/p>\n En cours depuis : 2024<\/p>\n","protected":false},"featured_media":9344,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":""},"categorie":[80,77,92,98],"class_list":["post-8177","projet","type-projet","status-publish","has-post-thumbnail","hentry","categorie-en-cours","categorie-axe-ihe","categorie-axe-sif","categorie-theses"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet"}],"about":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/types\/projet"}],"version-history":[{"count":4,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8177\/revisions"}],"predecessor-version":[{"id":9350,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8177\/revisions\/9350"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media\/9344"}],"wp:attachment":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media?parent=8177"}],"wp:term":[{"taxonomy":"categorie","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/categorie?post=8177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Axes de recherche<\/h2>\n