Descripteur
Documents disponibles dans cette catégorie (2439)
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
Etendre la recherche sur niveau(x) vers le bas
3D change detection – Approaches and applications / Rongjun Qin in ISPRS Journal of photogrammetry and remote sensing, vol 122 (December 2016)
![]()
[article]
Titre : 3D change detection – Approaches and applications Type de document : Article/Communication Auteurs : Rongjun Qin, Auteur ; Jiaojiao Tian, Auteur ; Peter Reinartz, Auteur Année de publication : 2016 Article en page(s) : pp 41 – 56 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] détection de changement
[Termes IGN] données localisées 3D
[Termes IGN] précision des données
[Termes IGN] semis de points
[Termes IGN] taxinomie
[Termes IGN] voxelRésumé : (Auteur) Due to the unprecedented technology development of sensors, platforms and algorithms for 3D data acquisition and generation, 3D spaceborne, airborne and close-range data, in the form of image based, Light Detection and Ranging (LiDAR) based point clouds, Digital Elevation Models (DEM) and 3D city models, become more accessible than ever before. Change detection (CD) or time-series data analysis in 3D has gained great attention due to its capability of providing volumetric dynamics to facilitate more applications and provide more accurate results. The state-of-the-art CD reviews aim to provide a comprehensive synthesis and to simplify the taxonomy of the traditional remote sensing CD techniques, which mainly sit within the boundary of 2D image/spectrum analysis, largely ignoring the particularities of 3D aspects of the data. The inclusion of 3D data for change detection (termed 3D CD), not only provides a source with different modality for analysis, but also transcends the border of traditional top-view 2D pixel/object-based analysis to highly detailed, oblique view or voxel-based geometric analysis. This paper reviews the recent developments and applications of 3D CD using remote sensing and close-range data, in support of both academia and industry researchers who seek for solutions in detecting and analyzing 3D dynamics of various objects of interest. We first describe the general considerations of 3D CD problems in different processing stages and identify CD types based on the information used, being the geometric comparison and geometric-spectral analysis. We then summarize relevant works and practices in urban, environment, ecology and civil applications, etc. Given the broad spectrum of applications and different types of 3D data, we discuss important issues in 3D CD methods. Finally, we present concluding remarks in algorithmic aspects of 3D CD. Numéro de notice : A2016--020 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2016.09.013 En ligne : http://dx.doi.org/10.1016/j.isprsjprs.2016.09.013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83882
in ISPRS Journal of photogrammetry and remote sensing > vol 122 (December 2016) . - pp 41 – 56[article]An attempt to determine the effect of increase of observation correlations on detectability and identifiability of a single gross error / Witold Proszynski in Geodesy and cartography, vol 65 n° 2 (December 2016)
![]()
[article]
Titre : An attempt to determine the effect of increase of observation correlations on detectability and identifiability of a single gross error Type de document : Article/Communication Auteurs : Witold Proszynski, Auteur ; Mieczysław Kwaśniak, Auteur Année de publication : 2016 Article en page(s) : pp 313 - 333 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Statistiques
[Termes IGN] algorithme de décalage moyen
[Termes IGN] analyse de sensibilité
[Termes IGN] cohérence des données
[Termes IGN] corrélation
[Termes IGN] détection d'erreur
[Termes IGN] fiabilité des données
[Termes IGN] valeur aberranteRésumé : (auteur) The paper presents the results of investigating the effect of increase of observation correlations on detectability and identifiability of a single gross error, the outlier test sensitivity and also the response-based measures of internal reliability of networks. To reduce in a research a practically incomputable number of possible test options when considering all the non-diagonal elements of the correlation matrix as variables, its simplest representation was used being a matrix with all non-diagonal elements of equal values, termed uniform correlation. By raising the common correlation value incrementally, a sequence of matrix configurations could be obtained corresponding to the increasing level of observation correlations. For each of the measures characterizing the above mentioned features of network reliability the effect is presented in a diagram form as a function of the increasing level of observation correlations. The influence of observation correlations on sensitivity of the w-test for correlated observations (Förstner 1983, Teunissen 2006) is investigated in comparison with the original Baarda’s w-test designated for uncorrelated observations, to determine the character of expected sensitivity degradation of the latter when used for correlated observations. The correlation effects obtained for different reliability measures exhibit mutual consistency in a satisfactory extent. As a by-product of the analyses, a simple formula valid for any arbitrary correlation matrix is proposed for transforming the Baarda’s w-test statistics into the w-test statistics for correlated observations. Numéro de notice : A2016-980 Affiliation des auteurs : non IGN Thématique : MATHEMATIQUE/POSITIONNEMENT Nature : Article DOI : 10.1515/geocart-2016-0018 En ligne : https://doi.org/10.1515/geocart-2016-0018 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83697
in Geodesy and cartography > vol 65 n° 2 (December 2016) . - pp 313 - 333[article]Estimates of stem wood increments in forest resources: comparison of different approaches in forest inventory: consequences for international reporting: case study of European forests / Andrius Kuliesis in Annals of Forest Science, vol 73 n° 4 (December 2016)
![]()
[article]
Titre : Estimates of stem wood increments in forest resources: comparison of different approaches in forest inventory: consequences for international reporting: case study of European forests Type de document : Article/Communication Auteurs : Andrius Kuliesis, Auteur ; Stein Michael Tomter, Auteur ; Claude Vidal , Auteur ; Adrian Lanz, Auteur
Année de publication : 2016 Article en page(s) : pp 857 - 869 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] échantillonnage
[Termes IGN] Europe (géographie politique)
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] inventaire forestier national (données France)
[Termes IGN] placette d'échantillonnage
[Termes IGN] qualité des données
[Vedettes matières IGN] Inventaire forestierRésumé : (Auteur) Quality and reliability of forest resource assessments depend on the ability of national forest inventories (NFIs) to supply necessary and high-quality data. Over the last decades and especially since the 1990s, the NFIs in European countries have been rapidly developing. Possibilities for obtaining reliable and accurate data on annual increment from different inventory types were evaluated, and sample-based inventories have been found to be superior to standwise inventories in providing reliable data. Simplified methods may be employed when increment cannot be directly estimated from inventory data. Numéro de notice : A2016--009 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-016-0559-0 En ligne : http://dx.doi.org/10.1007/s13595-016-0559-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83834
in Annals of Forest Science > vol 73 n° 4 (December 2016) . - pp 857 - 869[article]Bounding the integer bootstrapped GNSS baseline’s tail probability in the presence of stochastic uncertainty / Steven E. Langel in Journal of geodesy, vol 90 n° 11 (November 2016)
![]()
[article]
Titre : Bounding the integer bootstrapped GNSS baseline’s tail probability in the presence of stochastic uncertainty Type de document : Article/Communication Auteurs : Steven E. Langel, Auteur ; Samer M. Khanafseh, Auteur ; Boris Pervan, Auteur Année de publication : 2016 Article en page(s) : pp 1293 - 1305 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] corrélation
[Termes IGN] incertitude des données
[Termes IGN] ligne de base
[Termes IGN] positionnement par GNSSRésumé : (Auteur) Differential carrier phase applications that utilize cycle resolution need the probability density function of the baseline estimate to quantify its region of concentration. For the integer bootstrap estimator, the density function has an analytical definition that enables probability calculations given perfect statistical knowledge of measurement and process noise. This paper derives a method to upper bound the tail probability of the integer bootstrapped GNSS baseline when the measurement and process noise correlation functions are unknown, but can be upper and lower bounded. The tail probability is shown to be a non-convex function of a vector of conditional variances, whose feasible region is a convex polytope. We show how to solve the non-convex optimization problem globally by discretizing the polytope into small hyper-rectangular elements, and demonstrate the method for a static baseline estimation problem. Numéro de notice : A2016-803 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-016-0923-8 Date de publication en ligne : 13/06/2016 En ligne : http://dx.doi.org/ 10.1007/s00190-016-0923-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82588
in Journal of geodesy > vol 90 n° 11 (November 2016) . - pp 1293 - 1305[article]The limits of free / Alistair Maclenan in GEO: Geoconnexion international, vol 15 n° 10 (November - December 2016)
[article]
Titre : The limits of free Type de document : Article/Communication Auteurs : Alistair Maclenan, Auteur Année de publication : 2016 Article en page(s) : pp 17 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] accès aux données localisées
[Termes IGN] diffusion de données
[Termes IGN] diffusion par internet
[Termes IGN] données ouvertesRésumé : (éditeur) Businesses need to be doing as much for their customers as possible, while knowing when to draw the line, says Alistair Maclenan Numéro de notice : A2016-771 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82461
in GEO: Geoconnexion international > vol 15 n° 10 (November - December 2016) . - pp 17[article]Towards a protocol for the collection of VGI vector data / Peter Mooney in ISPRS International journal of geo-information, vol 5 n° 11 (November 2016)
![]()
PermalinkPermalinkFast and accurate target detection based on multiscale saliency and active contour model for high-resolution SAR images / Song Tu in IEEE Transactions on geoscience and remote sensing, vol 54 n° 10 (October 2016)
PermalinkPermalinkPermalinkSmart cities and linked data / Huibert-Jan Lekkerkerk in GIM international, vol 30 n° 10 (October 2016)
PermalinkBibframe, un nouveau modèle de données pour les bibliothèques / Reinhold Heuvelmann in Arabesques, n° 83 (juillet - septembre 2016)
PermalinkBumps and bruises in the digital skins of cities: unevenly distributed user-generated content across US urban areas / Colin Robertson in Cartography and Geographic Information Science, Vol 43 n° 4 (September 2016)
PermalinkÉvaluation de la qualité des sources du Web de Données pour la résolution d'entités nommées / Carmen Brando in Ingénierie des systèmes d'information, ISI : Revue des sciences et technologies de l'information, RSTI, vol 21 n° 5 - 6 (septembre - décembre 2016)
PermalinkPermalinkDe l'importance du géomaticien pour la qualité des données géographiques / Nathalie Dejour in Géomatique expert, n° 112 (septembre - octobre 2016)
PermalinkIncorporating movement in species distribution models: how do simulations of dispersal affect the accuracy and uncertainty of projections? / Paul Holloway in International journal of geographical information science IJGIS, vol 30 n° 9-10 (September - October 2016)
PermalinkA measure of average error variance of line features / Eryong Liu in Cartography and Geographic Information Science, Vol 43 n° 4 (September 2016)
PermalinkLes nouvelles frontières numériques et partagées de la France / Pierre Vergez in XYZ, n° 148 (septembre - novembre 2016)
PermalinkNovel tool for examination of data completeness based on a comparative study of VGI data and official building datasets / Joanna Nowak Da Costa in Geodetski vestnik, vol 60 n° 3 (September - November 2016)
PermalinkPropagating uncertainty through individual tree volume model predictions to large-area volume estimates / Ronald E. McRoberts in Annals of Forest Science, vol 73 n° 3 (September 2016)
PermalinkQualité de la donnée : objectif permanent, contexte évoluant / Mathieu Le Moal in Géomatique expert, n° 112 (septembre - octobre 2016)
PermalinkSpatiotemporal subpixel mapping of time-series images / Qunming Wang in IEEE Transactions on geoscience and remote sensing, vol 54 n° 9 (September 2016)
PermalinkPermalinkStem quality assessment in European National Forest Inventories: an opportunity for harmonised reporting? / Michal Bosela in Annals of Forest Science, vol 73 n° 3 (September 2016)
Permalink