Sylvie Daniel

Sylvie Daniel
Laval University | ULAVAL · Department of Geomatic Sciences

Ph.D.

About

89
Publications
30,591
Reads
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641
Citations
Citations since 2016
34 Research Items
427 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080

Publications

Publications (89)
Conference Paper
Full-text available
We present a new method for the simplification of 3D point clouds for digital twin city models. Such data usually contains a large amount of redundant information, noise and outliers. This implies that most of subsequent processing tasks are costly both in terms of processing times and hardware infrastructure. The core idea of this paper is that mo...
Article
Full-text available
Stakeholders’ Participation (SP) aims to involve stakeholders in decision-making processes about significant choices affecting their organizations, cities, or communities. Stakeholders’ participation is maintained through SP processes (SPPs) that may be traditional (e.g., physical assemblies) or online (e.g., online forums). Whether traditional or...
Article
Full-text available
The estimation of the uncertainty related to bathymetric data is essential in determining the quality of the data acquisition. This estimation is based on the covariance propagation considering the classical sounding georeferencing model. The estimation of the uncertainty using the Total Propagated Uncertainty (TPU) model is well described in the l...
Article
Given the high frequency and major impact of flood events, decision-makers are in urgent need to have tools allowing them to predict or assess the impact of flood events on the population, such as flood simulation through digital 3D cities. While building’s lowest openings are more subject to potential damages during the flood, 3D building models o...
Article
Full-text available
The identification of underwater landforms represents an important role in the study of the seafloor morphology. In this context, the segmentation and characterization of underwater dunes allow a better understanding of the dynamism of the seafloor, since the formation of these structures is directly related to environmental conditions, such as cur...
Article
Over the last decade, expanded participation among stakeholders has been increasingly adopted by both public and private organizations in different domains. This approach is used to strengthen the involvement of stakeholders in decision-making processes about meaningful decisions that will affect their communities. This paper aims to review, catego...
Article
Full-text available
The recognition of underwater dunes has a central role to ensure safe navigation. Indeed, the presence of these dynamic landforms on the seafloor represents a hazard for navigation, especially in navigation channels, and should be at least highlighted to avoid collision with vessels. This paper proposes a novel method dedicated to the segmentation...
Article
Full-text available
The benefit of autonomous vehicles in hydrography is largely based on the ability of these platforms to carry out survey campaigns in a fully autonomous manner. One solution is to have real-time processing onboard the survey vessel. To meet this real-time processing goal, deep learning based-models are favored. Although Artificial Intelligence (AI)...
Article
Full-text available
Applications based on synergistic integration of optical imagery and LiDAR data are receiving a growing interest from the remote sensing community. However, a misaligned integration of these datasets fails to fully profit from the potential of both sensors. An optimum fusion of optical imagery and LiDAR data requires an accurate registration. This...
Article
Full-text available
Automatic extraction of buildings in urban and residential scenes has become a subject of growing interest in the domain of photogrammetry and remote sensing, particularly since the mid-1990s. Active contour model, colloquially known as snake model, has been studied to extract buildings from aerial and satellite imagery. However, this task is still...
Preprint
Full-text available
Automatic extraction of buildings in urban and residential scenes has become a subject of growing interest in the domain of photogrammetry and remote sensing, particularly since mid-1990s. Active contour model, colloquially known as snake model, has been studied to extract buildings from aerial and satellite imagery. However, this task is still ver...
Article
Full-text available
With the development of 3D measurement systems, dense colored point clouds are increasingly available. However, up to now, their use in interactive applications has been restricted by the lack of support for point clouds in game engines. In addition, many of the existing applications for point clouds lack the capacity for fluent user interaction an...
Book
Full-text available
Play is an interactive and fun learning activity. Thanks to digitization, there is an upswing in the game-based learning sector which opens up opportunities for all-age audience to use Digital Games for Learning (DGL): from kids to elders. This book emphasizes the potential of digital games for lifelong learning and deals with the different aspects...
Book
Full-text available
Dans ce livre, différentes approches ludiques supportées par les jeux numériques pour l’apprentissage (JNA) sont explorées : les jeux sérieux éducatifs (JSÉ), l’usage ou détournement pédagogique de jeux numériques de divertissement dans un contexte éducatif ou encore les démarches de ludification éducative. Le livre introduit une démarche de créati...
Preprint
Full-text available
Applications based on synergistic integration of optical imagery and LiDAR data are receiving a growing interest from the remote sensing community. However, a misaligned integration between these datasets may fail to fully profit the potential of both sensors. In this regard, an optimum fusion of optical imagery and LiDAR data requires an accurate...
Article
Full-text available
Automatic extraction of buildings in urban scenes has become a subject of growing interest in the domain of photogrammetry and remote sensing, particularly with the emergence of LiDAR systems since mid-1990s. However, in reality, this task is still very challenging due to the complexity of building size and shape, as well as its surrounding environ...
Preprint
Full-text available
Automatic extraction of buildings in urban scenes has become a subject of growing interest in the domain of photogrammetry and remote sensing, particularly with the emergence of LiDAR systems since mid-1990s. However, in reality, this task is still very challenging due to the complexity of building size and shapes, as well as its surrounding enviro...
Conference Paper
Participation processes (PPs) are more and more requested in different areas given their capability to promote constructive exchange and innovative ideas and to bring a great value to decision-making processes. PPs aim to generate new data that decision-makers can consider and transform into relevant knowledge to support their decision-making proce...
Article
Full-text available
Web-mapping has been widely used to facilitate citizen participation in smart cities. Web-mapping has evolved from 2D static maps towards more dynamic and immersive 3D worlds such as virtual globes and scenes. Although current technologies allow us to build multidimensional representations, there is still a lack of research studies on how to furthe...
Preprint
Full-text available
The motivation of this paper is to address the problem of registering airborne LiDAR data and optical aerial or satellite imagery acquired from different platforms, at different times, with different points of view and levels of detail. In this paper, we present a robust registration method based on building regions, which are extracted from optica...
Article
To contribute in filling up the semantic gap in data warehouses and OLAP data cubes, and enable semantic exploration and reasoning on them, this paper highlights the need for semantically augmenting Geo/BI data with convenient semantic relations, and provides OWL-based ontologies (ODW and OOLAP) which are capable of replicating data warehouses (res...
Article
Understanding a LiDAR point cloud entails recognizing the objects present in the scene and associating interpretations to the object clouds that make it up. LiDAR data acquired in a large-scale urban setting with landbased mobile telemetry systems present several challenges specific to this context: overlapping point clouds, occlusion between objec...
Conference Paper
Citizen participation (CP) aims to reinforce the engagement of citizens in decision-making processes about significant choices affecting their cities and communities. With the emergence of the web-based crowdsourcing model, participants have become more involved in electronic participation processes. However, according to the literature, CP process...
Article
Full-text available
Understanding a LiDAR point cloud entails recognizing the objects present in the scene and associating interpretations to the object clouds that make it up. LiDAR data acquired in a large-scale urban setting with land-based mobile telemetry systems present several challenges specific to this context: overlapping point clouds, occlusion between obje...
Chapter
Parallel, an innovative teaching and learning tool, was designed by a multidisciplinary team gathering together university and college professors, post-graduate students, teachers, as well as young adults and college students. The creation of Parallel, made possible fruitful collaboration between students, teachers and researchers. The collaborativ...
Conference Paper
Full-text available
This paper addresses the heterogeneous data registration problem, which is one of the key features for any scene reconstruction and representation, especially for the underwater environment. In this study, we propose a registration method built around a 2D-to-3D feature-based approach that registers high-resolution side-scan sonar images with bathy...
Conference Paper
This research aims to design a new matching approach between terrestrial LiDAR (Light detection and Ranging) data and Synthetic Aperture Ladar (SAL) images. SAL is the extension of SAR (Synthetic Aperture Radar) to much shorter wavelengths, thus providing higher resolution. SAL acquires 2D images that are continuous representations of an environmen...
Conference Paper
Full-text available
Citizen participation (CP) aims to reinforce citizens' involvement in decision-making processes concerning significant choices that will affect their communities. As information and communication technologies have been gradually adopted in CP processes, CP evolved to become e-participation. Among technologies that are relevant to citizen participat...
Conference Paper
Full-text available
Governments are more and more adopting Citizens' participation processes since they may help better understand needs and better reach communities' goals. With the emergence of ICTs, citizens' participation processes took new forms such as social media, blogs and participative platforms. Nevertheless, although citizens' participation outstands a gre...
Book
Full-text available
Le jeu est une activité humaine universelle qui commence dès le plus jeune âge comme un moyen de découverte et d’apprentissage du monde qui nous entoure. Les jeux numérique pour l’apprentissage (JNA) ont pour but d’engager les apprenants dans une activité d’apprentissage engageante, mais la relation entre intention ludique (game), mécaniques d’appr...
Article
Full-text available
This qualitative research is part of a learning effort to better understand how serious games are exploited in a science education context. The research team examined this issue by focusing on augmented reality as a technological innovation imbedded on a tablet. Given the current state of knowledge related to serious games and augmented reality, an...
Article
Full-text available
Mobile professionals need to be assisted with suitable mobile GeoBI (Geospatial Business Intelligence) systems which are able to capture, organize and structure the user’s reality into a relevant context model and reason on it. GeoBI context modelling and reasoning are still research issues since there is not yet either a model or a relevant taxono...
Article
Full-text available
Unmanned aircraft systems, commonly known as drones, have become a new trend in the field of remote sensing and have been experiencing unprecedented growth in the civilian world since the start of the last decade. These systems allow us to fill many gaps that occur with airborne remote sensing. As opposed to planes, drones can be easily and quickly...
Article
Mobile applications are particularly exciting to geographers due to their ability to collect swathes of spatial data from citizens, to present information relevant to a user's current location, and to present data via interactive visualizations. While these functions are presented together within a single mobile location-based application (LBApps),...
Article
Information and Communication Technologies (ICTs) revolutionize the ways different urban actors communicate and interact. Geographic information technologies are of key importance too for the deployment and implementation of ICTs in the Smart City, because of the central role they may play as decision-making support tools. Indeed, they give quick a...
Article
Business professionals are increasingly mobile and should be supported by suitable mobile Decision Support Systems (DSS). In our previous work, we have established that such suitable mobile DSS should be (i) GeoBI(Geospatial Business Intelligence)-enabled and (ii) context-based, and have addressed issues regarding context characterization and conte...
Article
Unmanned aircraft systems, commonly known as drones, have become a new trend in the field of remote sensing and have been experiencing unprecedented growth in the civilian world since the start of the last decade. These systems allow us to fill many gaps that occur with airborne remote sensing. As opposed to planes, drones can be easily and quickly...
Conference Paper
Information and Communication Technologies (ICTs) revolutionize the ways different urban actors communicate and interact. Geographic information technologies are of key importance too for the deployment and implementation of ICTs in the Smart City, because of the central role they may play as decision-making support tools. Indeed, they give quick a...
Conference Paper
This paper proposes a new tool for interactive visualization of underground infrastructures. As underground services can be easily damaged during excavation work, it’s important to take proper precautions. Professionals require in situ tools that will provide them with a greater efficiency of intervention and a better assessment of work progress. A...
Article
Since climate change impact studies have shown that the marine environment could be greatly weakened by the disappearance of some flora and fauna species and the rapid aging of underwater infrastructure, new, efficient and robust observation tools are required. In this paper we propose acoustic cameras as innovative tools for acquiring underwater d...
Book
The integration of the 3rd dimension in the production of spatial representation is largely recognized as a valuable approach to comprehend our reality, that is 3D. During the last decade developments in 3D Geoinformation (GI) system have made substantial progress. We are about to have a more complete spatial model and understanding of our planet i...
Book
The integration of the 3rd dimension in the production of spatial representation is largely recognized as a valuable approach to comprehend our reality, that is 3D. During the last decade developments in 3D Geoinformation (GI) system have made substantial progress. We are about to have a more complete spatial model and understanding of our planet i...
Article
Since climate change impact studies have shown that the marine environment could be greatly weakened by the disappearance of some flora and fauna species and the rapid aging of underwater infrastructure, new, efficient and robust observation tools are required. In this paper we propose acoustic cameras as innovative tools for acquiring underwater d...
Article
Full-text available
This paper investigates the use of smartphone technology as a tool to implement building energy audit programmes to increase energy conservation measure (ECM) uptake and concomitant environmental and economic benefits. The smartphone audit analysed provides an energy audit platform with: (i) quasi-real time analysis, (ii) continuous user engagement...
Article
Full-text available
Current high-resolution sidescan and multibeam sonars produce very large data sets. However, conventional interferometry-based bathymetry algorithms underestimate the potential information of such soundings, generally because they use small baselines to avoid phase ambiguity. Moreover, these algorithms limit the triangulation capabilities of multib...
Article
With the requirements for high performance results in the today’s mobile, global, highly competitive, and technology-based business world, business professionals have to get supported by convenient mobile decision support systems (DSS). To give an improved support to mobile business professionals, it is necessary to go further than just allowing a...
Chapter
Full-text available
Research networks foster creativity and break down institutional bar-riers, but introduce geographic barriers to communication and collaboration. Indesigning mobile educational games, our distributed team took advantage of di-verse talent pools and differing perspectives to drive forward a core vision of our design targets. Our strategies included...
Chapter
Full-text available
Mobile learning is increasingly commonplace at all levels of education as well as in the workplace. Its flexibility, immediacy and ubiquity are such that large-scale adoption is inevitable, especially as smart phone technology becomes affordable. This paper is important because it presents a project which is innovative in combining M-learning with...
Conference Paper
Full-text available
This paper introduces a methodology to reconstruct underwater environment using two images of the same scene, acquired by an acoustical camera from different points of view. The final target of the work is to produce a full 3D representation of the observed environment to improve its exploration and analysis. Indeed, as the DIDSON acoustic camera p...
Conference Paper
The vast majority of mobile AR applications currently available propose to "augment" the user world perception with annotations and 3D graphics. However, the augmentation principle of these applications does not involve information about the user surroundings when rendering the digital graphics. As a result, occlusions are not managed. To manage oc...
Chapter
The last few years have seen an explosion of mobile Web services and GIS tools with the advent of smart phones which offer fast data access, high resolution displays, and significant processing power. Within a few years, mobile devices will know where they are, what direction they are facing, and how they are moving. Those designing Web resources a...
Chapter
Available at: http://link.springer.com/chapter/10.1007%2F978-3-642-12670-3_10 The emergence of powerful mobile smartphones, with embedded components (camera, GPS, accelerometers, digital compass), triggered a lot of interest in the mobile augmented reality (AR) community and new AR applications relying on these devices are beginning to reach the ge...
Conference Paper
Full-text available
GéoÉduc3D vise à concevoir et à mettre en œuvre un ensemble d’outils d’apprentissage innovants qui vont permettre de comprendre in situ des phénomènes relatifs à desthématiques pertinentes pour les jeunes mais également en termes de perception et cognitionspatiale liés à la géomatique. Pour cela, le projet GéoÉduc3D s’ancre principalement dans la m...
Conference Paper
This paper introduces a system for three-dimensional (3D) reconstruction of underwater environments using multiple images acquired by an acoustical camera from different points of view. The final target of the work is to produce a full 3D representation of the observed environment to improve its exploration and analysis. Indeed, as the DIDSON acous...
Conference Paper
Full-text available
This paper proposes a new tool for close range photogrammetry survey. It has been designed to assist nonexpert users when conducting 3D survey of infrastructures. Close range photogrammetry requires specific acquisition setup in order to build precise and accurate 3D model. While an expert user will know where to locate his camera stations and how...
Article
The archaeological excavation process consists in decomposing the site in its many elementary study units called locus, or excavation, units. The locus description provides pieces of knowledge regarding the physical and spatial properties and relationships between the stratigraphic contexts of the site. Archaeological excavation being in some way a...
Article
Full-text available
This paper presents some preliminary results and prospects regarding research we are carrying out in the area of geospatial photo-realistic 3D multi representations (of objects or scenes) dedicated to mobile or Internet users. The long term purpose is to propose web mapping services for urban navigation. They will consist of augmented reality envir...
Article
More and more frequently, the populating of 3D MRDB’s (Multi Representations Data Base) is required to support advanced cartographic applications and advanced geospatial decision analysis. We previously proposed a manual photogrammetric process based on the Multi Representation Acquisition Pattern (MRAP) concept to tackle simultaneously Fine Level...
Article
D MRDB (Multi Representation Data Base) population is more and more required to support advanced cartographical applications and advanced geospatial decisional analysis. This paper presents a new photogrammetric approach regarding multiple representation acquisition process to populate the buildings of a 3D MRDB. The suggested process tackles simul...
Article
Close-range photogrammetry methodology shows promising characteristics for 3D spatial-data acquisition. Several photogrammetric approaches have already been used in archaeology, but few of them have been dedicated to field archaeology. This article addresses the 3D restitution of an excavation unit. It proposes a new close-range photogrammetry appr...
Article
Due to their involvement in several development areas (economy, industry, tourism, etc.) the maintenance and control of port infrastructure are of prime interest. Currently, quay inspection is carried out by divers using underwater cameras. Besides being time consuming, this approach displays several drawbacks: high cost, diver's insecurity and lac...
Article
Full-text available
Many different research projects on geomatics data acquisition and processing are being carried out in the Department of Geomatics Sciences at Laval University. The projects have undergone a great diversification, especially over the last decades. In this article the major past and present projects related mainly to satellite positioning, photogram...
Article
Full-text available
Based on a hundred years of experience in geomatics education at Laval University, certain future directions for instruction emerge. This paper considers the content of geomatics courses and the methods of delivery. The content of courses must adjust to the convergence of technologies as, for example, when methods of location become embedded in mor...
Article
Full-text available
This paper presents our approach to improve the 3D-MRDB population techniques in the context of buildings (i.e. to define several geometric representations, different levels of details, of a geographical object). After having discussed our motivations, we present an overview of existing researches relating to the extraction of buildings' geometries...