Myriam Servières

Myriam Servières
Ecole Centrale de Nantes | EC Nantes · Department of Computer Science and Mathematics

Ph.D.

About

102
Publications
14,398
Reads
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549
Citations
Citations since 2016
33 Research Items
267 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Additional affiliations
September 2006 - present
Ecole Centrale de Nantes
Position
  • Professor (Associate)
September 2003 - December 2005
University of Nantes
Position
  • PhD Student

Publications

Publications (102)
Article
Full-text available
Wind can influence people’s behavior and their way of inhabiting an architectural or urban space. Furthermore, virtual reality (VR) enables the simulation of different physical and sensitive phenomena such as the wind. We aim to analyze the effects of different wind representations in terms of perception of its properties and sense of presence in V...
Chapter
Full-text available
Based on a case study in Rennes, the article presents how a group of urban public actors re-uses methods and technology from citizen sciences to raise the urban air quality issue in the public debate. The project gives a group of inhabitants the opportunity to follow air quality training and proceed PM2.5µm measurements. The authors question the im...
Chapter
Based on a case study from Rennes, the chapter presents how a group of urban public actors re-uses methods and technology from citizen sciences to raise the urban air quality issue in the public debate. The project offers to a group of inhabitants to follow air quality training and proceed PM2.5µm measurements. The authors question the impact of th...
Article
Full-text available
In the context of global warming, cities promote temporary or permanent public space designs based on the integration of various cooling techniques, hereafter called spatio-climatic devices, to locally cool down the atmosphere and preserve urban liveability. Such public spaces create interaction opportunities for citizens to seek thermal pleasure o...
Article
Full-text available
Simultaneous Localization and Mapping is now widely adopted by many applications, and researchers have produced very dense literature on this topic. With the advent of smart devices, embedding cameras, inertial measurement units, visual SLAM (vSLAM), and visual-inertial SLAM (viSLAM) are enabling novel general public applications. In this context,...
Conference Paper
Full-text available
The set of physical and sensitive phenomena that interacts with the urban morphology acts on the resulting perception from the users of a place. Its study and representation provides elements beyond the aesthetics aspects that can allow a better understanding of the space and future urban projects. We aim to analyze the effects of three different w...
Article
Full-text available
The contemporary design of public spaces integrates frequently urban cooling installations for thermal comfort in summertime. However, the details of the thermal experience that they provide is yet partially unknown. This paper studies how methods and techniques arising from microclimatology, urban studies and sensory studies can interact for chara...
Article
Based on a case study in Rennes, the article presents how a group of urban public actors re-uses methods and technology from citizen sciences to raise the urban air quality issue in the public debate. The project gives a group of inhabitants the opportunity to follow air quality training and proceed PM2.5µm measurements. The authors question the im...
Conference Paper
Full-text available
The graphical representation of a complex polygonal object, such as an isovist field (i.e. a 2D isovist in its evolution over time along a pedestrian path in an urban environment) is a hard research issue that was stated in the late 1970s by Benedikt [1]. The generalized space-time cube from Bach and al. [2] is a conceptual framework allowing to pr...
Article
Full-text available
The urban environments represent challenging areas for handheld device pose estimation (i.e., 3D position and 3D orientation) in large displacements. It is even more challenging with low-cost sensors and computational resources that are available in pedestrian mobile devices (i.e., monocular camera and Inertial Measurement Unit). To address these c...
Article
Une cartopartie est une balade urbaine qui vise à arpenter une zone géographique à plusieurs, afin de produire des données géo-référencées. Cet atelier initié par la communauté OpenStreetMap est actuellement approprié par des collectivités au sein de dispositifs de participation habitante qui mettent en œuvre des technologies numériques : métrologi...
Conference Paper
Full-text available
After being immersed in a public space, in order to have our own perception of the place itself and to analyze users' behavior, we ran simulations of physical phenomena to better understand the nature and magnitude of the ones noticed by the users. Finally, a descriptive video has been used as a way to reveal the variety of users' experiences and t...
Conference Paper
To support pedestrian navigation in urban and indoor spaces, an accurate pose estimate (i.e. 3D position and 3D orientation) of an equipment held in hand constitutes an essential point in the development of mobility assistance tools (e.g. Augmented Reality applications). On the assumption that the pedestrian is only equipped with general public dev...
Article
In the context of pedestrian navigation and Augmented Reality applications in urban environments, we propose to fuse the pose estimated through a vision process, thanks to a precisely known 3D model, with inertial and magnetic measurements. First, this allows for updating a Pedestrian Dead‐Reckoning process and improving the positioning accuracy. S...
Conference Paper
Full-text available
New digital devices, mainly mobile ones, raise new questions on architectural and urban design practices. People became ''sensors", being at the same time able to move into the city and to move into the information space. Mobiance, a mix between Mobile and Ambiance, is a research and creation process focused on the impacts of innovative ICT technol...
Article
Full-text available
If urban data production and management strategies has generated the smartcities movement, digital technology devices are anchored in territories and modify the ordinary practices of inhabitants. They participate as tools in the urban transformation process. We will more particularly attempt to show to what extent does the introduction of ICT devic...
Conference Paper
In the context of pedestrian navigation, urban environment constitutes a challenging area for both localization and Augmented Reality (AR). In order to display 3D Geographic Information System (GIS) content in AR and to qualify them, we propose to fuse the pose estimated using vision thanks to a precisely known 3D urban furniture model with rotatio...
Article
Full-text available
Image geolocalization has become an important research field during the last decade. This field is divided into two main sections. The first is image geolocalization that is used to find out which country, region or city the image belongs to. The second one is refining image localization for uses that require more accuracy such as augmented reality...
Conference Paper
Urban environment constitutes a challenging area for pedestrian navigation. However, with the recent increase of pedestrians owning devices (e.g. smartphones), complementary data provided by integrated low cost sensors (camera, Inertial and Magnetic Measurement Unit and GNSS receiver) may be used in a coupling process to accurately estimate the pos...
Chapter
New mobile digital devices raise new questions on architectural and urban design processes. They suggest new ways of dealing with projects in situ, organizing virtual and real data, acquiring information about shapes, materials, climate, lights, capturing specific genius loci of the site, as well as creating interactions between multiple stakeholde...
Article
Full-text available
Rainfall monitoring is an important global issue in urban hydrological applications, such as flood warning and water resources management systems. Until the present time, rain gauges and weather radars have been widely used as sensors to provide rainfall information with a detailed resolution; most cities in the world however are inadequately equip...
Conference Paper
More and more pedestrians own devices (as a smartphone) that integrate a wide array of low-cost sensors (camera, IMU, magnetometer and GNSS receiver). GNSS is usually used for pedestrian localization in urban environment, but signal suffers of an inaccuracy of several meters. In order to have a more accurate localization and improve pedestrian navi...
Conference Paper
Full-text available
The research investigates the multidisciplinary nature of the ambiance notion and proposes a novel methodology to strengthen multidisciplinary collabora-tions. In particular, an ad hoc tool named “mapping ambiance” based on semi-structured interviews, was developed. A qualitative analytical method for studying and comparing results was implemented...
Conference Paper
Full-text available
Mobiance, a mix between Mobile and Ambiance, is a research and creation process on the impacts of the uses of mobile tools on urban design. The second Mobiance workshop, held in Nantes, France, at the beginning of October 2015, focused on captors/actuators interacting in/with cities. Captors/sensors stand for connected devices, private and public o...
Conference Paper
Full-text available
The real time monitoring of rainfall over urban areas is a critical issue for hydrological applications such as flood warning and water resource systems. Despite the fact that traditional techniques such as networks of rain gauges and weather radars are used to measure rainfall many cities worldwide are not well equipped with these devices. However...
Presentation
10th International Workshop on Precipitation in Urban Areas (UrbanRain 2015), Pontresina, Switzerland, December 1-5, 2015
Article
Les informations temporelles jouent un rôle important dans une grande majorité de problèmes scientifiques. En géographie, l'interaction avec les aspects spatiaux et la référence à des calendriers sur de longues périodes est fréquente. Les approches théoriques ou expérimentales croisent nécessairement différents points de vue de plusieurs communauté...
Article
Full-text available
Rainfall monitoring is of great importance in urban hydrological applications such as sewer management and flood warning systems. Although, rain gauges and weather radars are widely used for measuring rainfall, a lack of such sensors is a major problem in most cities around the world. Recently, commercial microwave links (MWL) have been proposed as...
Conference Paper
In this paper, we develop a global iterative algorithm for tomographic reconstructions from Mojette projections. Since Spline-Mojette projections are obtained by convolving Dirac-Mojette values with a specific uniform projection kernel, we decorrelate iterative reconstructions from projection model and provide a global scheme available for all Moje...
Conference Paper
Sous l’acronyme MOBIANCE, un workshop organisé à Nantes (France) en novembre 2013 a posé la question des usages des outils mobiles comme dispositifs d’analyse et de conception de l’environnement construit, en mettant en avant la problématique des ambiances urbaines. L’objectif était de faire émerger des usages inédits des outils mobiles pour le des...
Article
Full-text available
In this paper, we explain our hypothesis on the use of virtual reality for historical knowledge management and we describe an experimental protocol using Unity3D engine. In order to visualize and analyze complex historical information, virtual reality is used to provide an interactive and immersive environment. The user can interact on linked heter...
Article
One of the main issues for authorities in disaster management is to build clear situation awareness that is consistent and accurate in both space and time. Authorities usually have Geographical Information Systems (GIS) for reference data. One current trend of GIS is the use of crowd sourcing, i.e. gather information from the public to build very l...
Conference Paper
Full-text available
For applications such as outdoor Augmented Reality (AR) or 3D City Model construction of updating, a real-time registration between a video sequence and a Geographic Information System (GIS) is required. In this work, we present a registration system using a GPS prior and a skyline matching method to estimate the camera pose from images. A skyline...
Conference Paper
Two new methods to perform interpolation mapping from Radon sinogram to Mojette domain are presented. Reconstructions are made from both spaces using FBP and SART algorithms. Assessment of the methods is made both from Shepp-Logan phantom and actual data and demonstrate the efficiency of the proposed algorithms.
Conference Paper
Full-text available
This paper presents two spatial query methods for a Geographic Information System (GIS) that runs on a touch screen. On conventional GIS interfaces SQL is used to construct spatial queries. However keyboard typing proves to be inefficient on touch screens. Furthermore, SQL is not an easy-learning language, especially for novices to GIS. To simplify...
Conference Paper
Full-text available
Camera pose estimation from an image has long been a very active research for Video/GIS registration. Different from traditional methods which are based on direct building feature matching, this paper presents an alternative method which uses an overall Skyline feature to determine the camera’s orientation. Through our skyline matching method we fi...
Conference Paper
Full-text available
Museums are filled with hidden secrets. One of those secrets lies behind historical mock-ups whose signification goes far behind a simple representation of a city. We face the challenge of designing, storing and showing knowledge related to these mock-ups in order to explain their historical value. Over the last few years, several mock-up digitalis...
Conference Paper
Full-text available
Although information modeling techniques and ontologies developments have been intensively used and studied, we believe that clear and logical links between these different concepts are missing. It is even more crucial in 3D city modeling context where standardization processes are less developed. In this paper, we first give an unambiguous view of...
Conference Paper
In this article we present a multidisciplinary experimentation realized between a mechanical laboratory, a computer scientist laboratory and a museum. Our goal is to provide automatic tools for non-expert people who want to use 3D digitized elements. After scanning an objet, we obtain a huge amount of points. In order to manipulate it, it is necess...
Conference Paper
This paper presents a method for reconstructing 3D buildings and updating Geographic Information System (GIS) data from video. We use 2D-GIS data and a ground-based video sequence as inputs. The main approach consists of three parts. In the first part, the data is captured and analyzed: besides the 2D-GIS data, we capture a video from a street view...
Conference Paper
Full-text available
In recent years Augmented Reality (AR) has become more and more popular, especially since the availability of mo-bile devices, such as smartphones or tablets, brought AR into our everyday life. Although the AR community has not yet agreed on a formal definition of AR, some work fo-cused on proposing classifications of existing AR methods or applica...
Conference Paper
Full-text available
Our work is developed in the context of spatiotemporal data modeling and more particularly of urban data modeling. Our goal is to propose a methodology describing the overall process of urban data modeling from the design phase to the implementation in an information system. For that, we propose, within a GIS, an approach based on a conceptual mode...
Conference Paper
Full-text available
In Museum, many testimonies of our cultural heritage can be found. But because of their high fragility, the public can not get too close to them. In this communication we will explain a project that deals with a physical mock-up of Nantes harbor; the mock-up has been built in 1899 and shown in 1900 for the World's Fair that took place in Paris, Fra...
Article
Full-text available
We propose a camera-tracking method by on-line learning of keypoint arrangements in augmented reality applications. As target objects, we deal with intersection maps from GIS and text documents, which are not dealt with by the popular SIFT and SURF descriptors. For keypoint matching by keypoint arrangement, we use locally likely arrangement hashing...
Conference Paper
Our work is developed in the context of spatiotemporal data modeling and more particularly of urban data modeling. Our goal is to propose a methodology describing the overall process of urban data modeling beginning from the design phase until the implementation in an information system. For that, we propose, within a GIS, an approach based on a co...
Conference Paper
Full-text available
Résumé: Grand port de la façade Atlantique mais difficile d'accès au fond de l'estuaire de la Loire, Nantes a toujours eu besoin de valoriser son image maritime. A un moment où, grâce à un grand canal latéral, les possibilités de navigation y paraissaient confortées, la Chambre de Commerce de la ville a décidé de commander une maquette du port pour...
Article
Full-text available
In this paper we propose a methodology describing a global process used to model both urban spatiotemporal data and applications. During the design phase, we use a tool based on the Entity-Relation formalism that is dedicated to spatiotemporal data design (MADS). The resulting conceptual schemas are adapted to the particularities of the urban data...
Conference Paper
We present a 3D modeling approach to reconstruct urban facades with map constraints. Our main constribution is to use GIS data to filter the points cloud to improve the reconstruction process. The method's input is a ground-view video sequence captured by a common webcam. We extract original feature points cloud by using structure-from-motion techn...
Conference Paper
Full-text available
Notre équipe de recherche travaille sur de nouveaux moyens pour capitaliser et valoriser notre patrimoine scientifique, technique et industriel. Nous utilisons l’ensemble des outils et méthodes issus du Génie Industriel contemporain. Les projets menés ont fait collaborer de nouveaux métiers. La mise en place de ces projets interdisciplinaires dans...