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High resolution elevation data derived from stereoscopic CORONA imagery ground control: an approach using IKONOS and SRTM data / Nikolaos Galiatsatos in Photogrammetric Engineering & Remote Sensing, PERS, vol 74 n° 9 (September 2008)
[article]
Titre : High resolution elevation data derived from stereoscopic CORONA imagery ground control: an approach using IKONOS and SRTM data Type de document : Article/Communication Auteurs : Nikolaos Galiatsatos, Auteur ; N.M. Donoghue, Auteur ; G. Philip, Auteur Année de publication : 2008 Article en page(s) : pp 1093 - 1106 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] contour
[Termes IGN] correction géométrique
[Termes IGN] distorsion d'image
[Termes IGN] estimation de précision
[Termes IGN] géométrie de l'image
[Termes IGN] image Corona
[Termes IGN] image Ikonos
[Termes IGN] image SRTM
[Termes IGN] MNS SRTM
[Termes IGN] modèle numérique de surface
[Termes IGN] modèle stéréoscopique
[Termes IGN] radargrammétrie
[Termes IGN] SyrieRésumé : (Auteur) The first space mission to provide stereoscopic imagery of the Earth’s surface was from the American CORONA spy satellite program from which it is possible to generate Digital Elevation Models (DEMs). CORONA imagery and derived DEMs are of most value in areas where conventional topographic maps are of poor quality, but the problem has been that until recently, it was difficult to assess their accuracy. This paper presents a methodology to create a high quality DEM from CORONA imagery using horizontal ground control derived from Ikonos space imagery and vertical ground control from map-based contour lines. Such DEMs can be produced without the need for field-based ground control measurements which is an advantage in many parts of world where ground surveying is difficult. Knowledge of CORONA image distortions, satellite geometry, ground resolution, and film scanning are important factors that can affect the DEM extraction process. A study area in Syria is used to demonstrate the method, and Shuttle Radar Topography Mission (SRTM) data is used to perform quantitative and qualitative accuracy assessment of the automatically extracted DEM. The SRTM data has enormous importance for validating the quality of CORONA DEMs, and so, unlocking the potential of a largely untapped part of the archive. We conclude that CORONA data can produce unbiased, high-resolution DEM data which may be valuable for researchers working in countries where topographic data is difficult to obtain. Copyright ASPRS Numéro de notice : A2008-346 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.74.9.1093 En ligne : https://doi.org/10.14358/PERS.74.9.1093 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29339
in Photogrammetric Engineering & Remote Sensing, PERS > vol 74 n° 9 (September 2008) . - pp 1093 - 1106[article]Accuracy assessment of high resolution satellite imagery orientation by leave-one-out method / Maria Antonia Brovelli in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 4 (July - August 2008)
[article]
Titre : Accuracy assessment of high resolution satellite imagery orientation by leave-one-out method Type de document : Article/Communication Auteurs : Maria Antonia Brovelli, Auteur ; M. Crespi, Auteur ; F. Fratarcangeli, Auteur ; et al., Auteur Année de publication : 2008 Article en page(s) : pp 427 - 440 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] estimation de précision
[Termes IGN] image à haute résolution
[Termes IGN] image EROS
[Termes IGN] image Quickbird
[Termes IGN] orientation externe
[Termes IGN] OrthoEngine
[Termes IGN] point d'appui
[Termes IGN] point de vérification
[Termes IGN] précision des donnéesRésumé : (Auteur) Interest in high-resolution satellite imagery (HRSI) is spreading in several application fields, at both scientific and commercial levels. Fundamental and critical goals for the geometric use of this kind of imagery are their orientation and orthorectification, processes able to georeference the imagery and correct the geometric deformations they undergo during acquisition. In order to exploit the actual potentialities of orthorectified imagery in Geomatics applications, the definition of a methodology to assess the spatial accuracy achievable from oriented imagery is a crucial topic. In this paper we want to propose a new method for accuracy assessment based on the Leave-One-Out Cross-Validation (LOOCV), a model validation method already applied in different fields such as machine learning, bioinformatics and generally in any other field requiring an evaluation of the performance of a learning algorithm (e.g. in geostatistics), but never applied to HRSI orientation accuracy assessment. The proposed method exhibits interesting features which are able to overcome the most remarkable drawbacks involved by the commonly used method (Hold-Out Validation — HOV), based on the partitioning of the known ground points in two sets: the first is used in the orientation–orthorectification model (GCPs — Ground Control Points) and the second is used to validate the model itself (CPs — Check Points). In fact the HOV is generally not reliable and it is not applicable when a low number of ground points is available. To test the proposed method we implemented a new routine that performs the LOOCV in the software SISAR, developed by the Geodesy and Geomatics Team at the Sapienza University of Rome to perform the rigorous orientation of HRSI; this routine was tested on some EROS-A and QuickBird images. Moreover, these images were also oriented using the world recognized commercial software OrthoEngine v. 10 (included in the Geomatica suite by PCI), manually performing the LOOCV since only the HOV is implemented.
The software comparison guaranteed about the overall correctness and good performances of the SISAR model, whereas the results showed the good features of the LOOCV method. Copyright ISPRSNuméro de notice : A2008-325 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2008.01.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2008.01.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29318
in ISPRS Journal of photogrammetry and remote sensing > vol 63 n° 4 (July - August 2008) . - pp 427 - 440[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-08041 SL Revue Centre de documentation Revues en salle Disponible On the accuracy assessment of celestial reference frame realizations / Z. Malkin in Journal of geodesy, vol 82 n° 6 (June 2008)
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Titre : On the accuracy assessment of celestial reference frame realizations Type de document : Article/Communication Auteurs : Z. Malkin, Auteur Année de publication : 2008 Article en page(s) : pp 325 - 329 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] données ITGB
[Termes IGN] estimation de précision
[Termes IGN] précision des données
[Termes IGN] repère de référence céleste
[Termes IGN] système de référence célesteRésumé : (Auteur) The scatter of the celestial pole offset (CPO) time-series obtained from very long baseline interferometry (VLBI) observations is used as a measure of the accuracy of celestial reference frame (CRF) realizations. Several scatter indices (SI), including some proposed for the first time, are investigated. The first SI is based on residual analysis of CPO series with respect to a free core nutation (FCN) model. The second group of SIs includes Allan deviation and its extensions, which allow the treatment of unequally weighted and multidimensional observations. Application of these criteria to several radio source catalogues (RSCs) showed their ability to perform a preliminary assessment of the quality of each RSC. The 2D Allan deviation estimate seems to be the most sensitive measure. The proposed extensions of Allan deviation, weighted and multidimensional, can also be used for the statistical analysis of other time-series. Copyright Springer Numéro de notice : A2008-314 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-007-0181-x En ligne : https://doi.org/10.1007/s00190-007-0181-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29307
in Journal of geodesy > vol 82 n° 6 (June 2008) . - pp 325 - 329[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-08051 SL Revue Centre de documentation Revues en salle Disponible Comparison of land cover maps using fuzzy agreement / Steffen Fritz in International journal of geographical information science IJGIS, vol 19 n° 7 (august 2005)
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Titre : Comparison of land cover maps using fuzzy agreement Type de document : Article/Communication Auteurs : Steffen Fritz, Auteur ; Linda M. See, Auteur Année de publication : 2005 Article en page(s) : pp 787 - 807 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse comparative
[Termes IGN] carte d'occupation du sol
[Termes IGN] classification floue
[Termes IGN] estimation de précision
[Termes IGN] incertitude des données
[Termes IGN] logique floue
[Termes IGN] système expertRésumé : (Auteur) A generic problem associated with different land cover maps that cover the same geographical area is the use of different legend categories. There may be disagreement in many areas when comparing different land cover products even though the legend shows the same or very similar land cover class. To capture the uncertainty associated with both differences in the legend and the difficulty in classification when comparing two land cover maps, expert knowledge and a fuzzy logic framework are used to map the fuzzy agreement. The methodology is illustrated by comparing the Global Land Cover 2000 data set and the MODIS global land cover product. Overall accuracy measures are calculated, and the spatial fuzzy agreement between the two land cover products is provided. This approach can be used to improved the overall confidence in a land cover product, since areas of severe disagreement can be highlighted, and areas can be identified that require further attention and possible re-mapping. Numéro de notice : A2005-355 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810500072020 En ligne : https://doi.org/10.1080/13658810500072020 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27491
in International journal of geographical information science IJGIS > vol 19 n° 7 (august 2005) . - pp 787 - 807[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-05071 RAB Revue Centre de documentation En réserve L003 Disponible 079-05072 RAB Revue Centre de documentation En réserve L003 Disponible Further developments of a fuzzy set map comparison approach / Alex Hagen-Zanker in International journal of geographical information science IJGIS, vol 19 n° 7 (august 2005)
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Titre : Further developments of a fuzzy set map comparison approach Type de document : Article/Communication Auteurs : Alex Hagen-Zanker, Auteur ; B. Straatman, Auteur ; I. Uljee, Auteur Année de publication : 2005 Article en page(s) : pp 769 - 785 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse comparative
[Termes IGN] carte numérique
[Termes IGN] classification dirigée
[Termes IGN] données maillées
[Termes IGN] estimation de précision
[Termes IGN] Kappa de Cohen
[Termes IGN] logique floue
[Termes IGN] matriceRésumé : (Auteur) Fuzzy set map comparison offers a novel approach to map comparison. The approach is specifically aimed at categorical raster maps and applies fuzzy set techniques, accounting for fuzziness of location and fuzziness of category, to create a similarity map as well as an overall similarity statistic: the Fuzzy Kappa. To date, the calculation of the Fuzzy Kappa (or K-fuzzy) has not been formally derived, and the documented procedure was only valid for cases without fuzziness of category. Furthermore, it required an infinitely large, edgeless map. This paper presents the full derivation of the Fuzzy Kappa; the method is now valid for comparisons considering fuzziness of both location and category and does not require further assumptions. This theoretical completion opens opportunities for use of the technique that surpass the original intentions. In particular, the categorical similarity matrix can be applied to highlight or disregard differences pertaining to selected categories or groups of categories and to distinguish between differences due to omission and commission. Numéro de notice : A2005-354 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810500072137 En ligne : https://doi.org/10.1080/13658810500072137 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27490
in International journal of geographical information science IJGIS > vol 19 n° 7 (august 2005) . - pp 769 - 785[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-05071 RAB Revue Centre de documentation En réserve L003 Disponible 079-05072 RAB Revue Centre de documentation En réserve L003 Disponible Assessing the accuracy of satellite derived global and national urban maps in Kenya / A.J. Tatem in Remote sensing of environment, vol 96 n° 1 (15/05/2005)PermalinkUse of the Bradley-Terry model to quantify association in remotely sensed images / Alfred Stein in IEEE Transactions on geoscience and remote sensing, vol 43 n° 4 (April 2005)PermalinkAccuracy analysis of remote sensing change detection by rule-based rationality evaluation with post-classification comparison / H. Liu in International Journal of Remote Sensing IJRS, vol 25 n° 5 (March 2004)PermalinkSampling method and sampling placement: how do they affect the accuracy of remotely sensed maps? / L. Plourde in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 3 (March 2003)PermalinkCours de métrologie ES3 / Henri Duquenne (2003)PermalinkProceedings of the 2nd international symposium on spatial data quality '03, SDQ 2003, 19 - 20 March 2003, The Hong Kong Polytechnic University, Hong Kong / Wenzhong Shi (2003)PermalinkEvaluation de la qualité des données généralisées / Sébastien Cochard (2000)PermalinkInternational Symposium on Spatial accuracy of Natural Resource Data Bases, proceedings, 16- 20 May 1994, Williamsburg, Virginia / Russell G. Congalton (1994)PermalinkAccuracy assessment of a Landsat-assisted vegetation map of the coastal plain of the Arctic national wildlife refuge / N.A. Felix in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 4 (april 1989)PermalinkAccuracy assessment of Landsat-based visual change detection methods applied to the rural-urban fringe / L.R. Martin in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 2 (february 1989)Permalink