{"id":753,"date":"2025-04-28T15:56:08","date_gmt":"2025-04-28T13:56:08","guid":{"rendered":"https:\/\/opi-test.univ-lemans.fr\/?p=753"},"modified":"2025-07-04T13:59:43","modified_gmt":"2025-07-04T11:59:43","slug":"speckle-fondamentaux","status":"publish","type":"post","link":"https:\/\/optique-ingenieur.org\/?p=753","title":{"rendered":"Vers des CNN r\u00e9duits pour d\u00e9bruiter les images de phase corrompues par du bruit speckle"},"content":{"rendered":"<h4>Auteur(s) :<\/h4>\n<p style=\"padding-left: 40px;\">\n<span style=\"color: #3b8dbd;\"><strong>Marie Tahon<\/strong><\/span> \u2013 LIUM &#8211; Le Mans Universit\u00e9<\/p>\n<p style=\"padding-left: 40px;\">\n<span style=\"color: #3b8dbd;\"><strong>Silvio Montresor<\/strong><\/span> LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9<\/p>\n<p style=\"padding-left: 40px;\">\n<span style=\"color: #3b8dbd;\"><strong>Pascal PICART<\/strong><\/span> &#8211; LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9<\/p>\n<h4>R\u00e9sum\u00e9 :<\/h4>\n<p style=\"padding-left: 40px;\">L&rsquo;holographie num\u00e9rique est une technique tr\u00e8s efficace pour l&rsquo;imagerie 3D et la caract\u00e9risation des changements \u00e0 la surface de tout objet. Cependant, lors du processus d&rsquo;interf\u00e9rom\u00e9trie holographique, les images de phase reconstruites souffrent de bruit de speckle. Dans cet article, le d\u00e9bruitage est abord\u00e9 avec des images de phase corrompues par du bruit speckle. Pour ce faire, des r\u00e9seaux r\u00e9siduels DnCNN de diff\u00e9rentes profondeurs ont \u00e9t\u00e9 construits et entra\u00een\u00e9s avec diverses donn\u00e9es de phase holographiques bruyantes. La possibilit\u00e9 d&rsquo;utiliser un r\u00e9seau pr\u00e9-entra\u00een\u00e9 sur des images naturelles avec bruit gaussien est \u00e9galement \u00e9tudi\u00e9e. Tous les mod\u00e8les sont \u00e9valu\u00e9s en termes d&rsquo;erreur de phase avec les donn\u00e9es de r\u00e9f\u00e9rence HOLODEEP et avec 3 images in\u00e9dites correspondant \u00e0 diff\u00e9rentes conditions exp\u00e9rimentales. Les meilleurs r\u00e9sultats sont obtenus en utilisant un r\u00e9seau avec seulement 4 blocs convolutifs et form\u00e9s avec une large gamme de mod\u00e8les de phases bruit\u00e9s.<\/p>\n<div class=\"wp-block-uagb-buttons uagb-buttons__outer-wrap uagb-btn__default-btn uagb-btn-tablet__default-btn uagb-btn-mobile__default-btn uagb-block-7cf61b02\">\n<div class=\"uagb-buttons__wrap uagb-buttons-layout-wrap \"> <\/div>\n<\/div>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-765c4724 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-75\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"\/modules\/OPI_M02_C14\/OPI_fr_M02_C14\/OPI_fr_M02_C14_web.publi\/auroraW\/\" style=\"border-radius:0px;background-color:#5cba3c\" target=\"_blank\" rel=\"noreferrer noopener\">MODULE FRAN\u00c7AIS<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-left is-layout-flex wp-container-core-buttons-is-layout-fdcfc74e wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-75\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"\/modules\/OPI_M02_C14\/OPI_en_M02_C14\/OPI_ang_M02_C14_web.publi\/auroraW\/\" style=\"border-radius:0px;background-color:#5cba3c\" target=\"_blank\" rel=\"noreferrer noopener\">MODULE ANGLAIS<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><h3>T\u00e9l\u00e9chargement :<\/h3><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"\/modules\/pdf\/OPI_fr_M02_C14_papier.pdf\" data-type=\"link\" data-id=\"modules\/pdf\/OPI_fr_M02_C14.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Module fran\u00e7ais au format pdf<\/a><\/li>\n\n\n\n<li><a href=\"\/modules\/pdf\/OPI_ang_M02_C14_papier.pdf\" data-type=\"link\" data-id=\"\/modules\/pdf\/OPI_ang_M02_C14.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Module anglais au format pdf<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Auteur(s) : Marie Tahon \u2013 LIUM &#8211; Le Mans Universit\u00e9 Silvio Montresor LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9 Pascal PICART &#8211; LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9 R\u00e9sum\u00e9&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":514,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-interferences-et-diffraction"],"uagb_featured_image_src":{"full":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"thumbnail":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-150x150.png",150,150,true],"medium":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-300x198.png",300,198,true],"medium_large":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"large":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"1536x1536":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"2048x2048":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"thumb-small":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-80x80.png",80,80,true],"thumb-standard":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-320x320.png",320,320,true],"thumb-medium":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-520x245.png",520,245,true],"thumb-large":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_-552x340.png",552,340,true],"thumb-xlarge":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false],"thumb-xxlarge":["https:\/\/optique-ingenieur.org\/wp-content\/uploads\/2024\/04\/15.Alt_.png",552,364,false]},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/optique-ingenieur.org\/?author=1"},"uagb_comment_info":0,"uagb_excerpt":"Auteur(s) : Marie Tahon \u2013 LIUM &#8211; Le Mans Universit\u00e9 Silvio Montresor LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9 Pascal PICART &#8211; LAUM &#8211; Graduate School (IA-GS) &#8211; Le Mans Universit\u00e9 R\u00e9sum\u00e9&#46;&#46;&#46;","_links":{"self":[{"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/posts\/753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=753"}],"version-history":[{"count":8,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/posts\/753\/revisions"}],"predecessor-version":[{"id":1399,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/posts\/753\/revisions\/1399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=\/wp\/v2\/media\/514"}],"wp:attachment":[{"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/optique-ingenieur.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}