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Last name: MALLET
First name: Clément
International audience
We present a robust method for modeling cities from 3D-point data. Our algorithm provides a more complete description than existing approaches by reconstructing simultaneously buildings, trees and topographically complex grounds. A major contribution of our work is the original way of modeling buildings which guarantees a high generalization...
Les applications de l'imagerie hyperspectrale à la planification urbaine connaissent un développement important avec la miniaturisation des capteurs et l'utilisation croissante des drones et des plateformes aéroportées. Le grand nombre de bandes spectrales (entre 100 et 300), la finesse des intervalles spectraux sur l'ensemble d'un continuum...
L'ANR « Hyperspectral imagery for Environmental urban Planning – HYEP » est un projet dont l'objectif principal est de favoriser l'usage de l'imagerie hyperspectrale pour des applications de planification et de gestion urbaine. L'imagerie hyperspectrale diffère des moyens optiques usuels par la richesse des informations obtenues et les choix...
International audience
The automatic generation of 3D urban models from geospa-tial data is now a standard procedure. However, practitioners still have to visually assess, at city-scale, the correctness of these models and detect inevitable reconstruction errors. Such a process relies on experts, and is highly time-consuming (2 h/km 2 /expert). In this work, we...
The generation of 3D building models from Very High Resolution geospatial data is now an automatized procedure. However , urban areas are very complex and practitioners still have to visually assess the correctness of these models and detect reconstruction errors. We proposed an approach for automatically evaluating the quality of 3D building...
The automatic generation of 3D building models from geospatial data is now a standard procedure. An abundant literature covers the last two decades and several softwares are now available. However, urban areas are very complex environments. Inevitably, practitioners still have to visually assess, at city-scale, the correctness of these models...
National audience
The automatic modeling of urban scenes in 3D fromgeospatial data has been studied for more than thirty years.However, the output models still have to undergo a tedious taskof correction at city scale. In this work, we propose an approachfor automatically evaluating the quality of 3D building models.A taxonomy of potential ...
City modeling consists in building a semantic generalized model of the surface of urban objects. These could be seen as a special case of Boundary representation surfaces. Most modeling methods focus on 3D buildings with Very High Resolution overhead data (images and/or 3D point clouds). The literature abundantly addresses 3D mesh processing...
Lidar waveforms are 1-D signals representing a train of echoes caused by reflections at different targets. Modeling these echoes with the appropriate parametric function is useful to retrieve information about the physical characteristics of the targets. This paper presents a new probabilistic model based upon a marked point process which...
International audience
International audience
International audience
We report key elements and figures related to the proceedings of the 2021 edition of the XXIVth ISPRS Congress. Similarly to 2020, the COVID-19 pandemic caused global travel challenges and restrictions for the first half of 2021. Consequently, the physical Congress re-scheduled from June 2020 to July 2021 was again postponed to June 2022, still...
L'imagerie hyperspectrale (IH) est à l'heure actuelle encore trop peu considérée, pourtant ses spécificités en font un auxiliaire de poids pour le suivi des éléments du milieu urbain. Le projet HYEP a pour objectif de proposer un panel de méthodes et de traitements appliqués à l'imagerie hyperspectrale tout en comparant à celles d'autres...
L'imagerie hyperspectrale (IH) est à l'heure actuelle encore trop peu considérée, pourtant ses spécificités en font un auxiliaire de poids pour le suivi des éléments du milieu urbain. Le projet HYEP a pour objectif de proposer un panel de méthodes et de traitements appliqués à l'imagerie hyperspectrale tout en comparant à celles d'autres...
No description
he HYEP project (ANR HYEP 14-CE22-0016-01 Hyperspectral imagery for Environmental urban Planning - Mobility and Urban Systems Programme - 2014) confirmed the interest of a global approach to the urban environment by remote sensing and in particular by using hyperspectral imaging (HI). The interest of hyperspectral images lies in the range of...