{"id":19947,"date":"2024-09-30T11:06:10","date_gmt":"2024-09-30T09:06:10","guid":{"rendered":"https:\/\/www.univ-smb.fr\/listic\/?p=19947"},"modified":"2025-03-31T13:26:33","modified_gmt":"2025-03-31T11:26:33","slug":"antoine-bralet-soutient-sa-these-le-mardi-01-octobre-2024-apprentissage-multimodal-profond-pour-la-detection-dinstabilites-gravitaires-soudaines-et-lentes-a-partir-dimages-de-teledetect","status":"publish","type":"post","link":"https:\/\/www.univ-smb.fr\/listic\/archive-actualites\/antoine-bralet-soutient-sa-these-le-mardi-01-octobre-2024-apprentissage-multimodal-profond-pour-la-detection-dinstabilites-gravitaires-soudaines-et-lentes-a-partir-dimages-de-teledetect\/","title":{"rendered":"Antoine BRALET soutient sa th\u00e8se le Mardi 01 Octobre 2024 : \u00ab Apprentissage Multimodal Profond pour la D\u00e9tection d’Instabilit\u00e9s Gravitaires Soudaines et Lentes \u00e0 partir d’Images de T\u00e9l\u00e9d\u00e9tection Bitemporelles \u00bb"},"content":{"rendered":"

Antoine BRALET soutient sa th\u00e8se de doctorat le Mardi 01 Octobre 2024<\/strong> \u00e0 14h<\/strong>\u00a0\u00e0 Polyetch Annecy-Chamb\u00e9ry <\/strong>dans l’amphith\u00e9\u00e2tre B014.<\/strong><\/p>\n

\"Images<\/p>\n

Titre : \u00ab Apprentissage Multimodal Profond pour la D\u00e9tection d’Instabilit\u00e9s Gravitaires Soudaines et Lentes \u00e0 partir d’Images de T\u00e9l\u00e9d\u00e9tection Bitemporelles \u00bb<\/strong><\/h2>\n

Mots cl\u00e9s :<\/strong><\/h3>\n

Imagerie de t\u00e9l\u00e9d\u00e9tection, Apprentissage profond, Instabilit\u00e9s Gravitaires, Bitemporalit\u00e9, Multimodalit\u00e9,<\/p>\n

R\u00e9sum\u00e9 : <\/strong><\/h4>\n

Cette th\u00e8se a pour objectif le d\u00e9veloppement d\u2019algorithmes d\u2019intelligence artificielle pour la d\u00e9tection d\u2019instabilit\u00e9s gravitaires soudaines et lentes \u00e0 partir d\u2019images satellitaires radar (SAR) et optiques. Les premi\u00e8res contributions ont men\u00e9 \u00e0 la cr\u00e9ation d\u2019une nouvelle architecture neuronale, SARDINet, permettant de traduire une image SAR en image optique afin d\u2019obtenir des images comparables ind\u00e9pendamment des conditions m\u00e9t\u00e9orologiques. Plusieurs modifications architecturales ont permis d\u2019am\u00e9liorer la pertinence et le contraste des images traduites. Ces traductions ont ensuite \u00e9t\u00e9 conditionn\u00e9es \u00e0 l\u2019aide de nouvelles fonctions de co\u00fbts afin de guider le traducteur \u00e0 d\u00e9livrer des images exploitables a posteriori<\/i> pour des t\u00e2ches de classification ou de d\u00e9tection de changements. Ces traductions sont alors employ\u00e9es dans la cadre de la d\u00e9tection de glissements de terrain soudains \u00e0 Ha\u00efti en 2021. Enfin, la d\u00e9tection d\u2019instabilit\u00e9s lentes a \u00e9t\u00e9 le sujet de la cr\u00e9ation d\u2019un nouveau jeu de donn\u00e9es, ISSSLIDE. Celui-ci, bas\u00e9 sur une nouvelle routine d\u2019annotation manuelle d\u2019interf\u00e9rogrammes SAR, a alors pu \u00eatre exploit\u00e9 par des r\u00e9seaux de neurones de segmentation standards et a permis la cr\u00e9ation d\u2019une nouvelle strat\u00e9gie de segmentation\u00a0: ECSPLAIN. Cette derni\u00e8re s\u2019appuie sur l\u2019explicabilit\u00e9 d\u2019un r\u00e9seau classificateur durant la phase d\u2019entra\u00eenement afin de g\u00e9n\u00e9rer des cartes de segmentation et forcer le classificateur \u00e0 \u00eatre explicable. Cette th\u00e8se apporte ainsi de nouvelles m\u00e9thodes d\u2019intelligence artificielle appliqu\u00e9es aux images satellitaires tout en r\u00e9pondant au besoin de compr\u00e9hension des g\u00e9osciences<\/span><\/span>.<\/p>\n

<\/div>\n

Composition du Jury de th\u00e8se :<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
\n

Membre du jury<\/span><\/p>\n<\/th>\n

\n

Titre<\/span><\/p>\n<\/th>\n

\n

Lieu d\u2019exercice<\/span><\/p>\n<\/th>\n

\n

Fonction dans le jury<\/span><\/p>\n<\/th>\n<\/tr>\n

Beg\u00fcm DEMIR<\/td>\nProfesseur<\/td>\nTechnische Universit\u00e4t Berlin<\/td>\nRapportrice<\/td>\n<\/tr>\n
Germain FORESTIER<\/td>\nProfesseur<\/td>\nUniversit\u00e9 Haute-Alsace Rapporteur<\/td>\nRapporteur<\/td>\n<\/tr>\n
Sophie GIFFARD-ROISIN<\/td>\nIRD charg\u00e9e de recherche<\/td>\nUniversit\u00e9 Grenoble Alpes<\/td>\nExaminatrice<\/td>\n<\/tr>\n
Yannick BERTHOUMIEU<\/td>\nProfesseur<\/td>\nUniversit\u00e9 de Bordeaux<\/td>\nExaminateur<\/td>\n<\/tr>\n
Lo\u00efc DENIS<\/td>\nProfesseur<\/td>\nUniversit\u00e9 de Saint-Etienne<\/td>\nExaminateur<\/td>\n<\/tr>\n
Abdourrahmane ATTO<\/td>\nProfesseur<\/td>\nLISTIC, Universit\u00e9 Savoie Mont Blanc<\/td>\nDirecteur de th\u00e8se<\/td>\n<\/tr>\n
Jocelyn CHANUSSOT<\/td>\nProfesseur<\/td>\nCentre INRIA de l’Universit\u00e9 Grenoble Alpes<\/td>\nCo-directeur de th\u00e8se<\/td>\n<\/tr>\n
Emmanuel TROUV\u00c9<\/td>\nProfesseur<\/td>\nLISTIC, Universit\u00e9 Savoie Mont Blanc<\/td>\nCo-directeur de th\u00e8se<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Antoine BRALET soutient sa th\u00e8se de doctorat le Mardi 01 Octobre 2024 \u00e0 14h\u00a0\u00e0 Polyetch Annecy-Chamb\u00e9ry dans l’amphith\u00e9\u00e2tre B014. Titre : \u00ab Apprentissage Multimodal Profond pour la D\u00e9tection d’Instabilit\u00e9s Gravitaires Soudaines et Lentes \u00e0 partir […]<\/p>\n","protected":false},"author":372,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","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":"none","_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":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_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":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[19],"tags":[],"class_list":["post-19947","post","type-post","status-publish","format-standard","hentry","category-archive-actualites"],"acf":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/19947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/users\/372"}],"replies":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/comments?post=19947"}],"version-history":[{"count":4,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/19947\/revisions"}],"predecessor-version":[{"id":20218,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/posts\/19947\/revisions\/20218"}],"wp:attachment":[{"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/media?parent=19947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/categories?post=19947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/listic\/wp-json\/wp\/v2\/tags?post=19947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}