{"id":2614,"date":"2025-10-23T14:28:36","date_gmt":"2025-10-23T12:28:36","guid":{"rendered":"https:\/\/www.umr-lisah.fr\/?post_type=projets-de-recherche&p=2614"},"modified":"2025-11-27T10:51:04","modified_gmt":"2025-11-27T09:51:04","slug":"grounded-app","status":"publish","type":"projets-de-recherche","link":"https:\/\/www.umr-lisah.fr\/fr\/projets-de-recherche\/grounded-app\/","title":{"rendered":"Grounded.app"},"content":{"rendered":"

Param\u00e8tre essentiel de caract\u00e9risation des sols, notamment pour les estimations de stocks (H2O, C, N) mais difficile \u00e0 mesurer, la densit\u00e9 apparente des sols est souvent mal connue. Notre m\u00e9thode d\u2019estimation de volumes de terre excav\u00e9s par photo pour la mesure de la densit\u00e9 apparente, utilisable sur tout type de sol, valid\u00e9e scientifiquement, est d\u00e9j\u00e0 utilis\u00e9e en recherche. Il s\u2019agit, via une s\u00e9rie de prise de vues 3D avant et apr\u00e8s un pr\u00e9l\u00e8vement d\u2019\u00e9chantillon, d\u2019en estimer le volume en place, la masse de l\u2019\u00e9chantillon \u00e9tant mesur\u00e9e en laboratoire apr\u00e8s s\u00e9chage \u00e0 l\u2019\u00e9tuve<\/span>. Ce projet vise \u00e0 atteindre une maturit\u00e9 technologique permettant \u00e0 tout utilisateur d\u2019effectuer cette mesure dans les cas les plus courants. Il cr\u00e9era un prototype applicatif sur smartphone permettant \u00e0 des op\u00e9rateurs sans comp\u00e9tence particuli\u00e8re d\u2019effectuer les prises de vue sur terrain pour le calcul 3D du volume des \u00e9chantillons. Le projet est bas\u00e9 sur 4 t\u00e2ches avec un principe it\u00e9ratif :<\/span><\/p>\n

    \n
  1. \n

    d\u00e9veloppement d\u2019un prototype d\u2019application smartphone d\u2019assistance au pr\u00e9l\u00e8vement et \u00e0 la prise de vue 3D sur le terrain <\/span><\/p>\n<\/li>\n

  2. \n

    cr\u00e9ation d\u2019un web service de calcul \/ calcul embarqu\u00e9 des volumes de terre excav\u00e9s => d\u00e9j\u00e0 disponible sur le r\u00e9seau interne du LISAH<\/a><\/span><\/p>\n<\/li>\n

  3. \n

    \u00e9tablissement des sp\u00e9cifications de la m\u00e9thode et de la qualit\u00e9 de la mesure<\/span><\/p>\n<\/li>\n

  4. \n

    test continu et priorisation de fonctionnalit\u00e9s en s\u2019appuyant sur un groupe d\u2019utilisateurs (focus group)<\/span><\/p>\n<\/li>\n<\/ol>\n

    \u00c0 la fin du projet, un prototype op\u00e9rationnel permettra de disposer d\u2019une nouvelle m\u00e9thode de mesure de la densit\u00e9 applicable sur tout type de sol, ayant vocation apr\u00e8s maturation \u00e0 devenir une nouvelle m\u00e9thode de r\u00e9f\u00e9rence. \u00c0 la suite du projet, il s\u2019agira : i) de prolonger les d\u00e9veloppements en traitement d\u2019image pour am\u00e9liorer la robustesse de la m\u00e9thode aux cas plus extr\u00eames, ii) d\u2019am\u00e9liorer l\u2019ergonomie de l\u2019application pour l\u2019adapter \u00e0 toute la vari\u00e9t\u00e9 des situations rencontr\u00e9es en conditions r\u00e9elles et iii) d\u2019int\u00e9grer l\u2019ensemble des fonctionnalit\u00e9s dans un seul outil op\u00e9rationnel de gestion d\u2019\u00e9chantillons.<\/span><\/p>\n","protected":false},"author":11,"featured_media":2615,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[81],"class_list":["post-2614","projets-de-recherche","type-projets-de-recherche","status-publish","has-post-thumbnail","hentry","category-projet-en-cours"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche\/2614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche"}],"about":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/types\/projets-de-recherche"}],"author":[{"embeddable":true,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/users\/11"}],"version-history":[{"count":3,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche\/2614\/revisions"}],"predecessor-version":[{"id":2645,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche\/2614\/revisions\/2645"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/media\/2615"}],"wp:attachment":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/media?parent=2614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/categories?post=2614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}