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Congrès: ISSDQ 2015, International Symposium on Spatial Data Quality (28 septembre - 3 octobre 2015; La Grande Motte, France) (28 septembre - 3 octobre 2015) |
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Affiner la recherche Interroger des sources externesComparing image-based methods for assessing visual clutter in generalized maps / Guillaume Touya in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
Titre : Comparing image-based methods for assessing visual clutter in generalized maps Type de document : Article/Communication Auteurs : Guillaume Touya Congrès : ISPRS Geospatial Week 2015 (28 septembre - 3 octobre 2015; La Grande Motte, France) Année de publication : 2015 Article en page(s) : pp 227 - 233 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] arbre quadratique
[Termes descripteurs IGN] carte dérivée
[Termes descripteurs IGN] complexité de la carte
[Termes descripteurs IGN] entropie
[Termes descripteurs IGN] généralisation cartographique automatisée
[Termes descripteurs IGN] lisibilité perceptive
[Termes descripteurs IGN] qualité de généralisation
[Vedettes matières IGN] GénéralisationMots-clés libres : Map Generalization Clutter Complexity Cartography Legibility Constraints Scale Résumé : (auteur) Map generalization abstracts and simplifies geographic information to derive maps at smaller scales. The automation of map generalization requires techniques to evaluate the global quality of a generalized map. The quality and legibility of a generalized map is related to the complexity of the map, or the amount of clutter in the map, i.e. the excessive amount of information and its disorganization. Computer vision research is highly interested in measuring clutter in images, and this paper proposes to compare some of the existing techniques from computer vision, applied to generalized maps evaluation. Four techniques from the literature are described and tested on a large set of maps, generalized at different scales: edge density, subband entropy, quad tree complexity, and segmentation clutter. The results are analyzed against several criteria related to generalized maps, the identification of cluttered areas, the preservation of the global amount of information, the handling of occlusions and overlaps, foreground vs background, and blank space reduction. Numéro de notice : A2015--056 Affiliation des auteurs : IGN (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprsannals-II-3-W5-227-2015 date de publication en ligne : 18/08/2015 En ligne : https://doi.org/10.5194/isprsannals-II-3-W5-227-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83463
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > II-3 W5 (October 2015) . - pp 227 - 233[article]II-3 W5 - October 2015 - [actes] ISPRS Geospatial Week 2015, 28 September–3 October 2015, La Grande Motte, France (Bulletin de ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences) / Clément Mallet
est un bulletin de ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences / International society for photogrammetry and remote sensing (2012 - )
Titre : II-3 W5 - October 2015 - [actes] ISPRS Geospatial Week 2015, 28 September–3 October 2015, La Grande Motte, France Type de document : Périodique Auteurs : Clément Mallet Congrès : ISPRS Geospatial Week 2015 (28 septembre - 3 octobre 2015; La Grande Motte, France) Année de publication : 2015 Langues : Anglais (eng) Note de contenu : Laserscanning 2015
ISSDQ 2015
CMRT 2015
ISA 2015
GeoVIS 2015
GeoBigData 2015
Additional papersNuméro de notice : sans Affiliation des auteurs : IGN+Ext (2012-2019) Nature : Numéro de périodique nature-HAL : DirectOuvrColl/Actes En ligne : http://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-3-W5/index.ht [...] Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=26912 [n° ou bulletin]Contient
- Road orthophoto/DTM generation from mobile laser scanning / Bruno Vallet in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Color and texture interpolation between orthoimagery and vector data / Charlotte Hoarau in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Streetgen: in-base procedural-based road generation / Rémi Cura in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Point cloud server (PCS) : point clouds in-base management and processing / Rémi Cura in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- VGI quality control / Cidália Costa Fonte in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Comparing image-based methods for assessing visual clutter in generalized maps / Guillaume Touya in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Towards a generic method for building-parcel vector data adjustment by least squares / Yann Méneroux in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Modelling the constraints of spatial environment in fauna movement simulations: comparison of a boundaries accurate function and a cost function / Laurence Jolivet in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- Estimation of geographical databases capture scale based on inter-vertices distances exploration / Jean-François Girres in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
- A representation-driven ontology for spatial data quality elements, with orthoimagery as running example / Jean-François Hangouët in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, II-3 W5 (October 2015)
Titre : Modelling the constraints of spatial environment in fauna movement simulations: comparison of a boundaries accurate function and a cost function Type de document : Article/Communication Auteurs : Laurence Jolivet Congrès : ISSDQ 2015, International Symposium on Spatial Data Quality (28 septembre - 3 octobre 2015; La Grande Motte, France), Commanditaire ; ISPRS Geospatial Week 2015 (28 septembre - 3 octobre 2015; La Grande Motte, France) Année de publication : 2015 Article en page(s) : pp 249 - 255 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes descripteurs IGN] aménagement forestier
[Termes descripteurs IGN] aménagement paysager
[Termes descripteurs IGN] analyse comparative
[Termes descripteurs IGN] base de données localisées
[Termes descripteurs IGN] données localisées
[Termes descripteurs IGN] mammifère
[Termes descripteurs IGN] migration animale
[Termes descripteurs IGN] modèle de simulation
[Termes descripteurs IGN] modèle orienté agentRésumé : (auteur) Landscape influences fauna movement at different levels, from habitat selection to choices of movements’ direction. Our goal is to provide a development frame in order to test simulation functions for animal’s movement. We describe our approach for such simulations and we compare two types of functions to calculate trajectories. To do so, we first modelled the role of landscape elements to differentiate between elements that facilitate movements and the ones being hindrances. Different influences are identified depending on landscape elements and on animal species. Knowledge were gathered from ecologists, literature and observation datasets. Second, we analysed the description of animal movement recorded with GPS at fine scale, corresponding to high temporal frequency and good location accuracy. Analysing this type of data provides information on the relation between landscape features and movements. We implemented an agent-based simulation approach to calculate potential trajectories constrained by the spatial environment and individual’s behaviour. We tested two functions that consider space differently: one function takes into account the geometry and the types of landscape elements and one cost function sums up the spatial surroundings of an individual. Results highlight the fact that the cost function exaggerates the distances travelled by an individual and simplifies movement patterns. The geometry accurate function represents a good bottom-up approach for discovering interesting areas or obstacles for movements. Numéro de notice : A2015--069 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprsannals-II-3-W5-249-2015 En ligne : http://dx.doi.org/10.5194/isprsannals-II-3-W5-249-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83669
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > II-3 W5 (October 2015) . - pp 249 - 255[article]
Titre : Towards a generic method for building-parcel vector data adjustment by least squares Type de document : Article/Communication Auteurs : Yann Méneroux, Auteur ; Mickaël Brasebin Congrès : ISPRS Geospatial Week 2015 (28 septembre - 3 octobre 2015; La Grande Motte, France) Année de publication : 2015 Article en page(s) : pp 203 - 210 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes descripteurs IGN] bati
[Termes descripteurs IGN] cohérence des données
[Termes descripteurs IGN] compensation par moindres carrés
[Termes descripteurs IGN] conflation
[Termes descripteurs IGN] conflation par moindres carrés
[Termes descripteurs IGN] données vectorielles
[Termes descripteurs IGN] modèle géométrique du bâti
[Termes descripteurs IGN] relation topologiqueRésumé : (auteur) Being able to merge high quality and complete building models with parcel data is of a paramount importance for any application dealing with urban planning. However since parcel boundaries often stand for the legal reference frame, the whole correction will be exclusively done on building features. Then a major task is to identify spatial relationships and properties that buildings should keep through the conflation process. The purpose of this paper is to describe a method based on least squares approach to ensure that buildings fit consistently into parcels while abiding by a set of standard constraints that may concern most of urban applications. An important asset of our model is that it can be easily extended to comply with more specific constraints. In addition, results analysis also demonstrates that it provides significantly better output than a basic algorithm relying on an individual correction of features, especially regarding conservation of metrics and topological relationships between buildings. In the future, we would like to include more specific constraints to retrieve the actual positions of buildings relatively to parcel borders and we plan to assess the contribution of our algorithm on the quality of urban application outputs. Numéro de notice : A2015--058 Affiliation des auteurs : IGN (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprsannals-II-3-W5-203-2015 date de publication en ligne : 19/08/2015 En ligne : http://dx.doi.org/10.5194/isprsannals-II-3-W5-203-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83473
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > II-3 W5 (October 2015) . - pp 203 - 210[article]
Titre : VGI quality control Type de document : Article/Communication Auteurs : Cidália Costa Fonte, Auteur ; Lucy Bastin, Auteur ; Giles M. Foody, Auteur ; Tobias Kellenberger, Auteur ; Norman Kerle, Auteur ; Peter Mooney, Auteur ; Ana-Maria Olteanu-Raimond Congrès : ISPRS Geospatial Week 2015 (28 septembre - 3 octobre 2015; La Grande Motte, France) Année de publication : 2015 Article en page(s) : pp 317 - 324 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes descripteurs IGN] acquisition de données
[Termes descripteurs IGN] contrôle qualité
[Termes descripteurs IGN] données localisées des bénévoles
[Termes descripteurs IGN] participation du public
[Termes descripteurs IGN] qualité des donnéesMots-clés libres : Volunteered Geographic Information (VGI), Data Quality, National Mapping Agency (NMA), Crowd-sourcing, Citizen Science Résumé : (auteur) This paper presents a framework for considering quality control of volunteered geographic information (VGI). Different issues need to be considered during the conception, acquisition and post-acquisition phases of VGI creation. This includes items such as collecting metadata on the volunteer, providing suitable training, giving corrective feedback during the mapping process and use of control data, among others. Two examples of VGI data collection are then considered with respect to this quality control framework, i.e. VGI data collection by National Mapping Agencies and by the most recent Geo-Wiki tool, a game called Cropland Capture. Although good practices are beginning to emerge, there is still the need for the development and sharing of best practice, especially if VGI is to be integrated with authoritative map products or used for calibration and/or validation of land cover in the future. Numéro de notice : A2015--055 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprsannals-II-3-W5-317-2015 date de publication en ligne : 20/08/2015 En ligne : http://dx.doi.org/10.5194/isprsannals-II-3-W5-317-2015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83455
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > II-3 W5 (October 2015) . - pp 317 - 324[article]Documents numériques
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