{"id":66929,"date":"2025-04-27T12:00:00","date_gmt":"2025-04-27T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/manipuler-des-hologrammes-cest-enfin-possible-2"},"modified":"2025-05-05T19:37:33","modified_gmt":"2025-05-05T19:37:33","slug":"manipuler-des-hologrammes-cest-enfin-possible-2","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2","title":{"rendered":"Manipuler des Hologrammes, C\u2019Est Enfin Possible"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Il y a quelques anne\u0301es, la socie\u0301te\u0301 australienne Voxon Photonics de\u0301voilait un syste\u0300me d\u2019affichage volume\u0301trique et interactif, permettant a\u0300 un utilisateur de naviguer dans des dossiers et des fichiers en 3D, de manipuler des objets aux allures d\u2019hologrammes et de les regarder sous tous les angles. Ces actions dans l\u2019espace ne\u0301cessitent ne\u0301anmoins l\u2019usage d\u2019un contro\u0302leur, une souris 3D place\u0301e a\u0300 proximite\u0301 de l\u2019e\u0301cran.<\/p>\n<p>En revanche, une e\u0301quipe de l\u2019universite\u0301 de Navarre (Espagne) va pre\u0301senter a\u0300 la prochaine confe\u0301rence sur les interactions homme-machine (CHI 2025), fin avril 2025 a\u0300 Yokohama, un projet dans lequel l\u2019utilisateur intervient sur des objets virtuels en volume et dans l\u2019espace directement avec les doigts et les mains.<\/p>\n<p>De\u0301crit dans un article en acce\u0300s libre, l\u2019appareil est appele\u0301 FlexiVol. \u00ab Vol \u00bb pour l\u2019affichage volume\u0301trique et \u00ab Flexi \u00bb pour l\u2019e\u0301cran en mate\u0301riau flexible. C\u2019est justement la\u0300 que se situe la principale astuce technologique: les contenus en 3D s\u2019affichent par le biais d\u2019un projecteur sur un e\u0301cran constitue\u0301 en re\u0301alite\u0301 de bandes e\u0301lastiques paralle\u0300les de 2 cm de large en e\u0301lastane, silicone et polyester (le me\u0302me mate\u0301riau utilise\u0301 pour les e\u0301crans de projection classique).<\/p>\n<p><b>Un assemblage de bandes e\u0301lastiques monte\u0301 sur ressorts<\/b><\/p>\n<p>Cet assemblage souple est monte\u0301 sur ressorts et soumis a\u0300 un mouvement oscillatoire de forme sinusoi\u0308dale ultra-rapide: 2880 hertz. Cette fre\u0301quence est synchronise\u0301e avec les projections. Autrement dit, 2880 images par seconde s\u2019affichent sur un e\u0301cran qui bouge dans le sens de la profondeur. La persistance re\u0301tinienne chez l\u2019utilisateur cre\u0301e l\u2019illusion d\u2019un volume, comme, au cine\u0301ma, le de\u0301filement de 24 images fixes par seconde cre\u0301e celle du mouvement.<\/p>\n<p>Le principe d\u2019une membrane souple en plusieurs morceaux donne la possibilite\u0301 de litte\u0301ralement traverser l\u2019e\u0301cran avec la main pour saisir virtuellement un objet mode\u0301lise\u0301 en 3D. En fait, c\u2019est comme s\u2019il n\u2019y avait pas vraiment de support empe\u0302chant d\u2019 \u00bbattraper \u00bb les projections. Il y en a e\u0301videmment un mais il ne fait pas obstacle au geste.<\/p>\n<p>Deux came\u0301ras ste\u0301re\u0301oscopiques combine\u0301es a\u0300 des logiciels open source de Google (Mediapipe) composent le syste\u0300me de suivi des mouvements des doigts et de la main. En fonction de quoi, la position, le de\u0301placement et l\u2019apparence des objets virtuels sont recalcule\u0301s en temps re\u0301el, et l\u2019utilisateur peut ainsi saisir, de\u0301placer, faire glisser ou pivoter ce qui est projete\u0301, selon les me\u0302mes gestes qu\u2019il aurait avec des objets re\u0301els.<\/p>\n<p><b>18 participants ont teste\u0301 le dispositif<\/b><\/p>\n<p>L\u2019e\u0301quipe a fait tester le dispositif a\u0300 18 participants en leur assignant diverses manipulations au travers de ce dispositif et, en guise de comparaison, avec un appareil a\u0300 souris 3D. La grande majorite\u0301 conside\u0300re plus intuitive et naturelle l\u2019interaction directe avec les mains. L\u2019inconve\u0301nient principal se situe au niveau de la pre\u0301cision du geste, qui se pose aussi avec les e\u0301crans tactiles, compare\u0301 a\u0300 une souris et d\u2019un pointeur. Une certaine fatigue physique, a\u0300 long terme, peut e\u0302tre ressentie, a\u0300 force d\u2019avoir les mains dans le vide et les bras en tension. L\u2019e\u0301quipe pense pouvoir y reme\u0301dier en modifiant le design l\u2019appareil pour le rendre plus ergonomique.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Il y a quelques anne\u0301es, la socie\u0301te\u0301 australienne Voxon Photonics de\u0301voilait un syste\u0300me d\u2019affichage volume\u0301trique et interactif, permettant a\u0300 un utilisateur de naviguer dans des dossiers et des fichiers en 3D, de manipuler des objets aux allures d\u2019hologrammes et de les regarder sous tous les angles. Ces actions dans l\u2019espace ne\u0301cessitent ne\u0301anmoins [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":66928,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-66929","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Manipuler des Hologrammes, C\u2019Est Enfin Possible - Senegal<\/title>\n<meta name=\"description\" content=\"Il y a quelques anne\u0301es, la socie\u0301te\u0301 australienne Voxon Photonics de\u0301voilait un syste\u0300me d\u2019affichage volume\u0301trique et i ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Manipuler des Hologrammes, C\u2019Est Enfin Possible\" \/>\n<meta property=\"og:description\" content=\"Il y a quelques anne\u0301es, la socie\u0301te\u0301 australienne Voxon Photonics de\u0301voilait un syste\u0300me d\u2019affichage volume\u0301trique et i ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-27T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-05T19:37:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/04\/sm_1745807655.126459.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Manipuler des Hologrammes, C\u2019Est Enfin Possible\",\"datePublished\":\"2025-04-27T12:00:00+00:00\",\"dateModified\":\"2025-05-05T19:37:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\"},\"wordCount\":603,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/04\/sm_1745807655.126459.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/manipuler-des-hologrammes-cest-enfin-possible-2\",\"name\":\"Manipuler des Hologrammes, C\u2019Est Enfin Possible - 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