{"id":22,"date":"2015-06-15T11:01:33","date_gmt":"2015-06-15T09:01:33","guid":{"rendered":"http:\/\/members.loria.fr\/thierrygartiser\/?page_id=22"},"modified":"2025-03-17T22:40:53","modified_gmt":"2025-03-17T20:40:53","slug":"projets","status":"publish","type":"page","link":"https:\/\/members.loria.fr\/HDPNgo\/projets\/","title":{"rendered":"Research Projects"},"content":{"rendered":"<h4 class=\"cv\">Current projects<span style=\"float: right\"> 4 <\/span><\/h4>\n<h3>TraCertiBois (2025-)<\/h3>\n<ul>\n<li>Project: <strong>Solution industrielle innovante de TRA\u00e7abilit\u00e9 des BOIS sci\u00e9s pour CERtifier leur origine<br \/>\net leur qualit\u00e9<\/strong><\/li>\n<li>Funding: projet <a>REClaSIF<\/a> Arts et M\u00e9tiers-institut Mines Telecom<\/li>\n<li>Proposal: Avoir une tra\u00e7abilit\u00e9 de chaque pi\u00e8ce de bois sci\u00e9e pr\u00e9sente un int\u00e9r\u00eat technique pour le classement des bois car les conditions de croissance de l\u2019arbre, donc son origine, mais aussi la position du bois dans l\u2019arbre sont corr\u00e9l\u00e9es \u00e0 ses caract\u00e9ristiques m\u00e9caniques. La tra\u00e7abilit\u00e9 des bois se limite actuellement \u00e0 l\u2019\u00e9chelle de l\u2019approvisionnement. Le but du projet est de d\u00e9velopper des algorithmes et m\u00e9thodes de tra\u00e7abilit\u00e9 des sciages, et en particulier, pour aller vers un d\u00e9monstrateur en environnement r\u00e9el, l\u2019\u00e9tendant \u00e0 toutes les phases de la transformation du bois : de la for\u00eat \u00e0 la seconde transformation des sciages (s\u00e9chage, rabotage).<\/li>\n<\/ul>\n<h3>Biomtrace (2024-)<\/h3>\n<ul>\n<li>Project: <strong>Biometric methods for the identification and traceability of oak logs<\/strong><\/li>\n<li>Funding: Graine d&rsquo;ARTEMIS &#8212; Lorraine Universit\u00e9 d\u2019Excellence (<a href=\"https:\/\/mycor.nancy.inra.fr\/ARBRE\/\">Labex ARBRE<\/a>)<\/li>\n<li>Proposal: This project addresses the issue of log traceability, there is a need to develop alternative methods to these physical markers that can be used everywhere and that allow each log to be identified individually. One of the aims of this project is to acquire skills in the field of roundwood traceability using image analysis techniques with biometric approaches and to become experts in this field by proposing our own developments to meet the needs of the French forestry and timber sector. For this end, we intend to apply the latest advances in computer science research, particularly in the field of artificial intelligence, and to propose new developments more suited to our case.<br \/>\nThis project completes the Biomtrace initiative, previously supported by France Bois For\u00eat.<\/li>\n<\/ul>\n<h3>Biomtrace (2023-)<\/h3>\n<ul>\n<li>Project: <strong>D\u00e9veloppement de m\u00e9thodes BIOM\u00e9triques pour l\u2019identification et la TRACabilitE des grumes de ch\u00eane<\/strong><\/li>\n<li>Funding: France Bois For\u00eat (<a href=\"https:\/\/franceboisforet.fr\/\">FBF<\/a>)<\/li>\n<li>Proposal: L&rsquo;objectif de ce projet est de tester le d\u00e9veloppement d\u2019une m\u00e9thode de tra\u00e7abilit\u00e9 des grumes de ch\u00eane bas\u00e9e sur des caract\u00e9ristiques intrins\u00e8ques aux grumes, qui serait une alternative aux marqueurs physiques tels que les plaquettes plastiques ou les puces RFID. La piste suivie est le d\u00e9veloppement d\u2019une m\u00e9thode de tra\u00e7abilit\u00e9 bas\u00e9e sur l\u2019analyse de photos prises \u00e0 l\u2019extr\u00e9mit\u00e9 des grumes en for\u00eat et apr\u00e8s transport \u00e0 l\u2019aide de capteurs classiques de type smartphones.<br \/>\nLa m\u00e9thode devra \u00eatre robuste quels que soient l\u2019environnement de la grume sur l\u2019image, le type d\u2019appareil utilis\u00e9, les conditions de lumi\u00e8re pour la prise de photos et le temps \u00e9coul\u00e9 depuis la coupe qui va faire changer la couleur et l\u2019aspect de la section avec l\u2019apparition possible de fentes. Dans cette premi\u00e8re analyse on ne cherchera pas \u00e0 reconna\u00eetre une grume apr\u00e8s une purge de son extr\u00e9mit\u00e9 et seules des images RGB classiques seront utilis\u00e9es (pas d\u2019images hyperspectrales \u00e0 ce stade). Le projet devra \u00e9valuer si l\u2019utilisation de ce type de m\u00e9thode, bas\u00e9e sur des photos et des approches d\u2019intelligence artificielle, peut fonctionner pour l\u2019identification des grumes de ch\u00eane et leur tra\u00e7abilit\u00e9. Il devra aussi identifier les \u00e9ventuels verrous scientifiques et techniques qui seraient encore \u00e0 lever, et pr\u00e9ciser la faisabilit\u00e9 de d\u00e9veloppement op\u00e9rationnel.<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/anr.fr\/Projet-ANR-21-CE10-0002\">ANR EffiQuASS (2022-)<\/a><\/h3>\n<ul>\n<li>Project: <strong>Precise, cost &amp; eco-efficient timber quality assessment for the sawmill of the future<\/strong><\/li>\n<li>Funding: French Agence Nationale de le Recherche <strong>(ANR-21-CE10-0002)<\/strong><\/li>\n<li>Proposal: Structural design of buildings requires the knowledge of the material that constitutes the structure. On the opposite of concrete and steel, timber mechanical properties are highly variable because of tree growth conditions and the natural heterogeneity of wood. This is the reason why quality assessment is crucial for timber. In modern sawmills, there are scanners that control each board quality thanks to color or X-ray images. The LaBoMaP has a great experience on how to extract boards mechanical properties from this scanner data. Recently, this scanner data has also been used for the traceability of the boards. Board traceability data can help for quality assessment since there are correlations between boards quality and the logs, or at a larger scale the region they come from.<br \/>\nOther scientific challenge is to find a better indicative property of the strength to obtain a better grading efficiency than when using the dynamic MoE alone. By using simple optical technologies and board traceability, this project aims to propose methods that will help to significantly improve timber quality assessment for an eco-efficient usage of forest resources in a cost-effective sawmill of the future. It will be based on data from Douglas Fir species (Pseudotsuga menziesii (Mirb.) Franco), because of its current and future very high importance in French resource and construction building usage, but the developed methods can be applied to other species. Moreover, Douglas fir potential for improvement is higher than Norway spruce as shown by the aforementioned grading efficiency figures.\n<\/li>\n<\/ul>\n<h4 class=\"cv\">Past projects<span style=\"float: right\"> 7 <\/span><\/h4>\n<h3><a href=\"https:\/\/dream.georgiatech-metz.fr\/research-projects\/woodseer\/\">ANR WoodSeer (2019-2024)<\/a><\/h3>\n<ul>\n<li>Project: <strong>Predicting Inner Wood Defects from Outer Bark Features<\/strong><\/li>\n<li>Funding: French Agence Nationale de le Recherche <strong>(ANR-19-CE10-011)<\/strong><\/li>\n<li>Proposal: From a biological point of view, similarly to wood recording events occurring during a tree development, the tree bark reflects also its history and particularly the development of its branching. From a living branch until a knot in duramen, these different stages have a more or less evident impact on the external bark roughness, (slight colour differences can also be present). The leading assumption of WoodSeer is that it is possible to characterize automatically surface defects and to link them to the characteristics of the inner part through the establishment of relationships between both.<br \/>\nFrom an industrial point of view, WoodSeer targets the supply chain of wood for the first transformation industry but also the first steps of this transformation by aiming at adding information about the quality of the raw material at different steps of the supply processes: for standing trees in the forest, for felled logs stored at the roadside ,or just before their transformation in the sawmill. WoodSeer consortium believes that such information, added to a traceability framework, could be valuable to the wood supply chain, and in particular for the trading processes, adding transparency and offering the possibility to finely assign logs to a specific usage for customers.<\/li>\n<\/ul>\n<h3><a href=\"https:\/\/anr.fr\/Projet-ANR-18-CE45-0018\">ANR R-Vessel-X (2018-2023)<\/a><\/h3>\n<ul>\n<li>Project: <strong>Vascular network extraction and understanding within biomedical images<\/strong><\/li>\n<li>Funding: French Agence Nationale de le Recherche <strong>(ANR-18-CE45-0018)<\/strong><\/li>\n<li>Proposal: Cardiovascular diseases and other blood vessels disorders increase in the world-wide scale and in particular in Occident. The evolution of computer science in researches investigating vascular networks has raised the interest in numerical reconstructing and understanding of those complex tree-like structures. The R-VESSEL-X project proposes original and robust developments of image analysis and machine learning algorithms integrating strong mathematical frameworks, e.g. digital geometry and topology, mathematical morphology, or graphs for reconstructing vessels of the liver beyong medical image content. Another objective of R-VESSEL-X is to diffuse research works in an open-source way, with the developments of plug-ins compatible with the ITK and VTK librairies largely popularized by the KITWARE company. This project will also include benchmarks composed of images, associated ground-truth and quality metrics, so that researchers and engineers evaluate their novel contributions.\n<\/ul>\n<h3>Structure g\u00e9om\u00e9trique discr\u00e8te (Novembre 2022)<\/h3>\n<ul>\n<li>Project: <strong>\u00c9tude g\u00e9om\u00e9trique des courbes discr\u00e8tes bruit\u00e9es en 3D<\/strong><\/li>\n<li>Funding: Mobilit\u00e9 d&rsquo;inter-laboratoires 2022 du GdR IG-RV <\/li>\n<li>Proposal: Les courbes discr\u00e8tes sont souvent repr\u00e9sent\u00e9es par une liste de points. Cependant, avec cette mod\u00e9lisation, les informations g\u00e9om\u00e9triques comme la courbure ou les tangentes n&rsquo;apparaissent pas. Dans le domaine de la g\u00e9om\u00e9trie discr\u00e8te, diff\u00e9rents travaux sont r\u00e9alis\u00e9s pour l&rsquo;\u00e9tude des courbes discr\u00e8tes. Parmi eux, nous pouvons mentionner les travaux li\u00e9s \u00e0 la notion de segment droit maximal (SDM)  qui a \u00e9t\u00e9 largement utilis\u00e9e pour d\u00e9crire et analyser les propri\u00e9t\u00e9s g\u00e9om\u00e9triques des courbes d\u00e9finies dans Z<sup>2<\/sup>. Afin de mieux \u00e9tudier les courbes discr\u00e8tes bruit\u00e9es 2D, la structure de la couverture tangentielle adaptative (CTA) est consid\u00e9r\u00e9e avec la notion de segment flou maximal. C&rsquo;est dans ce contexte que nous proposons ce projet qui porte sur l&rsquo;\u00e9tude g\u00e9om\u00e9trique des courbes discr\u00e8tes bruit\u00e9es en 3D, en proposant des outils efficaces et automatiques pour les analyser. Plus pr\u00e9cis\u00e9ment, l&rsquo;objectif du pr\u00e9sent projet est d&rsquo;\u00e9tudier l&rsquo;extension en 3D de couverture tangentielle adaptative pour les analyses des courbes discr\u00e8tes bruit\u00e9es de Z<sup>3<\/sup>.\n<\/ul>\n<h3><a href=\"http:\/\/www.treetrace.eu\/\">ANR TreeTrace (2016-2022)<\/a><\/h3>\n<ul>\n<li>Project: <strong>Biometric fingerprints of trees: log tracing from forest to sawmill and early estimation of wood quality<\/strong><\/li>\n<li>Funding: French Agence Nationale de le Recherche <strong>(ANR-17-CE10-0016)<\/strong><\/li>\n<li>Proposal: With the increasing amount of imaging devices installed at sawmills, the importance of using these data for improving workflow and for increasing revenues in the wood processing industries is growing. In this context, challenging questions with respect to imaging and image processing technology arise, several of which will be tackled in this joint project.<br \/>\nThe project considers two application cases as follows: The first application case is the question of tracing tree logs from the forest harvesting site to the sawmill by using biometrics related tree log recognition techniques based on image processing of cross-section data only. This approach of course assumes the additional availability of imaging sensors in the forest. Since there is a trend for installing CT imaging devices at sawmills, which are of course not available in the forest, the challenging issue of cross modality matching arises. The second application case is the determination of wood quality from cross-section imagery, applicable already in the forest, and\/or at the sawmill.<\/li>\n<\/ul>\n<h3>SolHoM-Fossard (2019-2021)<\/h3>\n<ul>\n<li>Project: <strong>Interactions hommes-milieux et \u00e9volution des sols au cours des deux derniers mill\u00e9naires dans le massif du Fossard (Remiremont, Vosges)<\/strong><\/li>\n<li>Funding: Project interdisciplinaire de l&rsquo;Universit\u00e9 de Lorraine <\/li>\n<li>Proposal: Notre \u00e9quipe de p\u00e9dologues, arch\u00e9ologues, g\u00e9ographes et informaticiens s\u2019int\u00e9resse aux archives p\u00e9do- s\u00e9dimentaires du massif du Fossard, occup\u00e9 par l\u2019Homme sur presque 2000 ans. Des transects, s\u00e9lectionn\u00e9s \u00e0 partir de cartes et d\u2019analyses d\u2019image LiDAR, seront d\u00e9crits et \u00e9chantillonn\u00e9s. Les sols seront analys\u00e9s (physico-chimie, micromorphologie, caract\u00e9risation de la mati\u00e8re organique) et dat\u00e9s. L\u2019approche int\u00e9gr\u00e9e multi-scalaire et interdisciplinaire permettra de mettre en \u00e9vidence l\u2019empreinte des activit\u00e9s humaines historiques sur les sols, exacerb\u00e9es ou non par certains \u00e9v\u00e8nements climatiques majeurs.<\/li>\n<\/ul>\n<h3>Invariance g\u00e9om\u00e9trique (April 2017)<\/h3>\n<ul>\n<li>Project: <strong>Invariance g\u00e9om\u00e9trique par transformations rigides digitales<\/strong><\/li>\n<li>Funding: Mobilit\u00e9 d&rsquo;inter-laboratoires 2017 du GdR IG-RV <\/li>\n<li>Proposal: Avec l&rsquo;explosion des donn\u00e9es digitales dans lesquelles les objets sont discr\u00e9tis\u00e9s\/num\u00e9ris\u00e9s, nous nous int\u00e9ressons \u00e0 l\u2019utilisation des transformations g\u00e9om\u00e9triques, en particulier les transformations rigides, dans le contexte des images num\u00e9riques. Plus pr\u00e9cis\u00e9ment, les transformations appliqu\u00e9es aux images num\u00e9riques de Z<sup>2<\/sup> sont appel\u00e9es les transformations rigides digitales. Il s\u2019agit des transformations rigides de R<sup>2<\/sup> qui suivent un proc\u00e9d\u00e9 de digitalisation afin d\u2019obtenir un r\u00e9sultat sur Z<sup>2<\/sup>. Il est montr\u00e9 que ces transformations digitales perdent, dans la plupart des cas, leurs propri\u00e9t\u00e9s g\u00e9om\u00e9triques par rapport \u00e0 leurs homologues continus, \u00e0 cause de la digitalisation.<br \/>\nDans ce contexte, nous voulons \u00e9tudier aussi les conditions\/caract\u00e9risations des images num\u00e9riques qui permettent de pr\u00e9server leurs propri\u00e9t\u00e9s g\u00e9om\u00e9triques, en particulier la convexit\u00e9, sous des transformations rigides arbitraires.\n<\/ul>\n<h3>Image Matching (January-Mars 2013)<\/h3>\n<ul>\n<li>Project: <strong>2D Image Matching using Local Search<\/strong><\/li>\n<li>Funding: Universit\u00e9 de Paris-Est<\/li>\n<li>Proposal: 2D Image Matching (2D-IM, for short) refers to the problem of finding an admissible transformation between two given images. In particular, we address 2D-IM under rigid transformations, i.e., that combine translations and rotations. In a recent work, we proposed to study rigid transformations for digital images as a fully discrete process using a combinatorial structure -namely, a graph to model the whole space of rigid transformations on arbitrary subset of Z<sup>2<\/sup> of size N \u00d7 N.<br \/>\nIn this project, we plan to investigate the 2D-IM problem using combinatorial optimisation applied on the proposed structure.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Current projects 4<br \/>\nTraCertiBois (2025-)<\/p>\n<ul>\n<li>Project: Solution industrielle innovante de TRA\u00e7abilit\u00e9 des BOIS sci\u00e9s pour CERtifier leur origine<br \/>\net leur qualit\u00e9<\/li>\n<li>Funding: projet <a>REClaSIF<\/a> Arts et M\u00e9tiers-institut Mines Telecom<\/li>\n<li>Proposal: Avoir une tra\u00e7abilit\u00e9 de chaque pi\u00e8ce de bois sci\u00e9e pr\u00e9sente un int\u00e9r\u00eat technique pour le classement des bois car les conditions de croissance de l\u2019arbre, donc son origine, mais aussi la position du bois dans l\u2019arbre sont corr\u00e9l\u00e9es \u00e0 ses caract\u00e9ristiques m\u00e9caniques. La tra\u00e7abilit\u00e9 des bois se limite actuellement \u00e0 l\u2019\u00e9chelle de l\u2019approvisionnement. Le but du projet est de d\u00e9velopper des algorithmes et m\u00e9thodes de tra\u00e7abilit\u00e9 des sciages,<\/li>\n<\/ul>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-22","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/pages\/22","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/comments?post=22"}],"version-history":[{"count":105,"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/pages\/22\/revisions"}],"predecessor-version":[{"id":983,"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/pages\/22\/revisions\/983"}],"wp:attachment":[{"href":"https:\/\/members.loria.fr\/HDPNgo\/wp-json\/wp\/v2\/media?parent=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}