Search results for "objets"
showing 10 items of 41 documents
La musique dans et hors de la cathédrale : fête des fous et carnavals en Bourgogne à la fin du Moyen Age
2000
dir. Micheline Durand et Laura Weigert; International audience
L'acceptation des dispositifs technologiquesd'auto-production par le consommateur : une approche par l'empowerment psychologique
2022
During the Covid-19 pandemic, the deployment of self-service technologies (self-checking, interactive terminals, smart devices…), allowing to substitute existing service employees and give more autonomy to consumers, have accelerated. In the french academic literature, Cova et al. (2013) conceptualized these devices as « directed self-production » technologies, underlining a more or less imposed transfer of tasks operated by firms. Among consumers, these technological devices have been subjected to ambivalent representations from consumers : some positive representations mainly related to greater autonomy for individuals exist alongside concerns about human contact degradation, macrostructu…
Motion Analysis for Dynamic 3D Scene Reconstruction and Understanding
2017
This thesis studies the problem of dynamic scene 3D reconstruction and understanding using a calibrated 2D-3D camera setup mounted on a mobile platform via the analysis of objects' motions. For static scenes, the sought 3D map reconstruction can be obtained by registering the point cloud sequence. However, with dynamic scenes, we require a prior step of moving object elimination, which yields to the motion detection and segmentation problems. We provide solutions for the two practical scenarios, namely the known and unknown camera motion cases, respectively. When camera motion is unknown, our 3D-SSC and 3D-SMR algorithms segment the moving objects by analysing their 3D feature trajectories.…
Le Moyen Age vu d'ailleurs
2009
Entre 2002 et 2006, le programme Le Moyen Âge vu d'ailleurs a réuni des médiévistes européens et latino-américains , au cours de quatre rencontres qui se sont déroulées à Auxerre (2002), São Paulo (2003), Madrid (2005) et Buenos Aires (2006) . Dans un contexte de relative méconnaissance en Europe de ce qui se faisait dans la médiévistique latino-américaine, il s'agissait alors de stimuler les échanges entre de jeunes chercheurs et de chercheurs confirmés autour de l'actualité d'une recherche multiple en train de se construire. Dans ce deuxième volume Hors série du Bulletin du Centre d'études médiévales d'Auxerre, sont regroupées la plupart des contributions présentées au cours de ces quatre…
Nouveaux usages et digitalisation : l’expérience des objets connectés
2022
Traitement 3D de nuages de points basé sur la connaissance
2013
The modeling of real-world scenes through capturing 3D digital data has proven to be both useful andapplicable in a variety of industrial and surveying applications. Entire scenes are generally capturedby laser scanners and represented by large unorganized point clouds possibly along with additionalphotogrammetric data. A typical challenge in processing such point clouds and data lies in detectingand classifying objects that are present in the scene. In addition to the presence of noise, occlusionsand missing data, such tasks are often hindered by the irregularity of the capturing conditions bothwithin the same dataset and from one data set to another. Given the complexity of the underlying…
The Recomposition of Bureaucratic Forms in Territorial Development. Territorial Engineering and Intermediation in Project Territories
2013
L’ingénierie territoriale mobilise un répertoire de savoirs et d’objets intermédiaires au cœur du processus de création territoriale. Cet équipement cognitif est nécessaire à la cohésion de l’action publique multiniveaux au sein du territoire de projet. Dans ce contexte, bien que les modalités de gestion des contrats d’action publique ne dénaturent par la fonction médiatrice de ce répertoire, elles sont standardisées par les forces de l’isomorphisme institutionnel. L’ingénierie territoriale se bureaucratisant, elle administre des procédures qui font des territoires des segments d’exécution d’une politique définie indépendamment des enjeux territoriaux. At the heart of territorial processing…
Image-based detection and classification of allergenic pollen
2015
The correct classification of airborne pollen is relevant for medical treatment of allergies, and the regular manual process is costly and time consuming. An automatic processing would increase considerably the potential of pollen counting. Modern computer vision techniques enable the detection of discriminant pollen characteristics. In this thesis, a set of relevant image-based features for the recognition of top allergenic pollen taxa is proposed and analyzed. The foundation of our proposal is the evaluation of groups of features that can properly describe pollen in terms of shape, texture, size and apertures. The features are extracted on typical brightfield microscope images that enable…
3D digitization of transparent objects by polalization techniques in IR & by triangulation in UV
2011
Two non-conventional methods for the 3D digitization of transparent objects via non-contact measurement are reported in this thesis. 3D digitization is a well acknowledged technique for opaque objects and various commercial solutions based on different measurement approaches are available in the market offering different types of resolution at different prices. Since these techniques require a diffused or lambertian surface, their application to transparent surfaces fails. Indeed, rays reflected by the transparent surface are perturbed by diverse inter-reflections induced by the refractive properties of the object. Therefore, in industrial applications like quality control, the transparent …
Expositio missae : le commentaire du Canon de la Messe dans la tradition monastique et scolastique
2003
Place: Auxerre Publisher: Centre d'études médiévales