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Comparison of large-area land cover products with national forest inventories and CORINE land cover in the European Alps / Lars T. Waser in International journal of applied Earth observation and geoinformation, vol 8 n° 3 (September 2006)
[article]
Titre : Comparison of large-area land cover products with national forest inventories and CORINE land cover in the European Alps Type de document : Article/Communication Auteurs : Lars T. Waser, Auteur ; Markus Schwarz, Auteur Année de publication : 2006 Article en page(s) : pp 196 - 207 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Alpes
[Termes IGN] analyse comparative
[Termes IGN] cohérence des données
[Termes IGN] Corine Land Cover
[Termes IGN] image NOAA-AVHRR
[Termes IGN] image Terra-MODIS
[Termes IGN] image TIROS-AVHRR
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] inventaire forestier national (données France)
[Termes IGN] Italie
[Termes IGN] montagne
[Termes IGN] SuisseRésumé : (auteur) Considerable efforts have recently resulted in the development of global land cover data at large spatial scales. The main objective of this study is a comparison of different AVHRR- and MODIS-based forest and land cover products at the scale of the European Alps: a large natural ecosystem that is exposed to both natural environmental threats and human impacts and exploitation. In a first test, the accuracy of land cover products in predicting the overall amount of forest across national boundaries was assessed using national forest inventory statistics. Both variants of forest class combinations resulted in a general overestimation of the forest area. The IGBP 2.0 cover performed best with an overall mean absolute error of 13% and a bias of 0%. In a second test, large-area land cover products were tested for accuracy in predicting 13 aggregated land cover types in a spatially explicit manner using CORINE land cover as reference dataset. Due to data inconsistencies, partly insufficient spatial resolution, steep terrain and land use heterogeneity of the European Alps, only partly satisfactory results were obtained. Numéro de notice : A2006-304 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.1016/j.jag.2005.10.001 Date de publication en ligne : 15/12/2005 En ligne : https://doi.org/10.1016/j.jag.2005.10.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96043
in International journal of applied Earth observation and geoinformation > vol 8 n° 3 (September 2006) . - pp 196 - 207[article]Geometric test field calibration of digital photogrammetric sensors / Eija Honkavaara in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)
[article]
Titre : Geometric test field calibration of digital photogrammetric sensors Type de document : Article/Communication Auteurs : Eija Honkavaara, Auteur ; E. Ahokas, Auteur ; Juha Hyyppä, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 387 - 399 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] caméra numérique
[Termes IGN] erreur systématique
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] étalonnage géométrique
[Termes IGN] photogrammétrie numérique
[Termes IGN] précision géométrique (imagerie)Résumé : (Auteur) Test field system calibration will be a fundamental part of the future photogrammetric production line. Accurate calibration and performance evaluations are necessary for fully assessing the stability and accuracy of digital sensing techniques. In this paper, a method of comprehensive geometric calibration in a test field has been developed and empirically tested using eight image blocks collected with three UltraCamD digital large format photogrammetric cameras. Permanent photogrammetric test fields form the basis of the method. Important components of the method are determination of system parameters, evaluation of systematic errors, and assessment of geometric accuracy. The results showed that UltraCamD images contained systematic deformations that could not be modeled with single lens additional parameter models. Good point determination accuracy was obtained despite the systematic errors ; the typical accuracy was 2–3 um in image space in the horizontal coordinates and 0.05–0.09 of the object distance in height. One of the cameras had significantly poorer performance. In the worst cases, the horizontal accuracy was 5 um in image space and the height accuracy was 0.18 of the object distance. The analog cameras gave better results than the UltraCamD, but the development of appropriate mathematical models for UltraCamD as well as improvements in digital sensors may change the situation in the near future. Numéro de notice : A2006-411 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.04.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.04.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28135
in ISPRS Journal of photogrammetry and remote sensing > vol 60 n° 6 (September 2006) . - pp 387 - 399[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-06061 SL Revue Centre de documentation Revues en salle Disponible Image restoration for resolution improvement of digital aerial images: a comparison of large format digital cameras / S. Becker in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)
[article]
Titre : Image restoration for resolution improvement of digital aerial images: a comparison of large format digital cameras Type de document : Article/Communication Auteurs : S. Becker, Auteur ; Norbert Haala, Auteur ; et al., Auteur Année de publication : 2006 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 5 - 10 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] accentuation de contours
[Termes IGN] ADS40
[Termes IGN] analyse comparative
[Termes IGN] caméra numérique
[Termes IGN] chambre à grand format
[Termes IGN] cohérence des couleurs
[Termes IGN] DMC
[Termes IGN] image aérienne
[Termes IGN] image numérique
[Termes IGN] instrumentation Z/I Imaging
[Termes IGN] pansharpening (fusion d'images)
[Termes IGN] restauration d'image
[Termes IGN] tâche image d'un point
[Termes IGN] UltraCamRésumé : (Auteur) Within the paper a comparative quantification of the spatial image resolution for large-format digital airborne cameras will be presented. For this purpose, imagery of the Leica ADS40, the Intergraph Z/I-imaging DMC and the Vexcel UltraCamD were examined. The respective spatial resolutions are represented by means of the point spread function, which can be measured easily and reliably at image edges. Thus, images of test patterns like a Siemens star were used. In addition to the evaluation of the original images as they are provided by the camera systems, the potential benefit of a resolution improvement by image restoration is demonstrated. Therefore, a linear restoring finite impulse response filter is applied. Usually, colour image acquisition by digital aerial camera systems is realised by combining data from the multi-spectral module with higher resolution panchromatic imagery. The quality of this pan-sharpening process is presented in the final part of the paper. For this purpose, the potential degradation of colour information by this process was quantified for the three tested camera systems in addition to the resolution measurements. Copyright SFPT Numéro de notice : A2006-625 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueNat DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/T01-03.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28348
in Revue Française de Photogrammétrie et de Télédétection > n° 183 (Septembre 2006) . - pp 5 - 10[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 018-06031 RAB Revue Centre de documentation En réserve L003 Disponible Is there an ideal digital aerial camera? / Jean-Philippe Souchon in Revue Française de Photogrammétrie et de Télédétection, n° 183 (Septembre 2006)
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contenu dans ISPRS Commission 1 Symposium 2006, Paris, Marne-la-Vallée, 3-6 Juillet 2006: Des capteurs à l'imagerie, vol 1. Proceedings / Alain Baudoin (2006)
Titre : Is there an ideal digital aerial camera? Type de document : Article/Communication Auteurs : Jean-Philippe Souchon , Auteur ; Olivier Martin , Auteur ; Nicolas Paparoditis , Auteur ; et al., Auteur Année de publication : 2006 Conférence : ISPRS 2006, Commission 1 Symposium, From sensors to imagery 03/07/2006 06/07/2006 Champs-sur-Marne [Paris Marne-la-Vallée] France OA ISPRS Archives Article en page(s) : pp 29 - 34 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] ADS40
[Termes IGN] analyse comparative
[Termes IGN] caméra numérique
[Termes IGN] chambre à grand format
[Termes IGN] DMC
[Termes IGN] instrumentation IGN
[Termes IGN] UltraCamRésumé : (Auteur) The IGN digital camera project was set up in the early 90's and the first research surveys were carried out in 1996. The digital camera was first used in production in 2000 when the DMC and ADS40 systems appeared on the market at the beginning of the 21st century. Since then, two medium format systems (Applanix DSS322 and DiMAC system) and a third large-format system (Vexcel UltraCamD) appeared on the surveying market. Today, IGN's system could appear very underperforming in terms of possible swaths and frame rates compared with the ones offered by large format cameras ; and parts of our electronics have become obsolete. This is the reason why we recently reanalyzed the needs of IGN in term of digital imagery and confronted them to the main characteristics and capabilities of the different existing commercial systems. Considering that Bayer acquisition without a coupled panchromatic acquisition does not allow an image reconstruction of good quality and considering that an acquisition system based on CCD area sensors must be equipped with a Forward Motion Compensation (FMC) able to compensate dozens of pixels, we only focused on the three large-format systems that are : Intergraph's DMC, Vexcel's UltracamD, and Leica Geosystems' ADS40. Each of these three systems has its pros and cons and no one seems to bring an answer to all our needs. Copyright SFPT Numéro de notice : A2006-628 Affiliation des auteurs : LOEMI (1985-2011) Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/part1/Papers/PS3-45.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28351
in Revue Française de Photogrammétrie et de Télédétection > n° 183 (Septembre 2006) . - pp 29 - 34[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 018-06031 RAB Revue Centre de documentation En réserve L003 Disponible Documents numériques
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Is there an ideal... - pdf éditeur ISPRSAdobe Acrobat PDF Studies on DMC geometry / R. Alamus in ISPRS Journal of photogrammetry and remote sensing, vol 60 n° 6 (September 2006)
[article]
Titre : Studies on DMC geometry Type de document : Article/Communication Auteurs : R. Alamus, Auteur ; W. Kornus, Auteur ; J. Talaya, Auteur Année de publication : 2006 Article en page(s) : pp 375 - 386 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] analyse comparative
[Termes IGN] chambre DTC
[Termes IGN] DMC
[Termes IGN] données lidar
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] modèle numérique de surface
[Termes IGN] photogrammétrie aérienne
[Termes IGN] précision géométrique (imagerie)Résumé : (Auteur) Since the ISPRS Congress 2000 in Amsterdam, there are great expectations in matrix-CCD based digital cameras for aerial photogrammetry and mapping applications. During the last two years the number of DMC cameras in the market has raised significantly (32 cameras were sold until March 2006). This paper discusses the DMC accuracy focusing on the role of self-calibration parameters and the assessment of automatic DEM quality. This investigation concluded that under the current status of DMC an appropriate set of self-calibration parameters is necessary in order to achieve theoretical accuracy and precision, which were discussed in early literature. In the following discussions, the accuracy of the DMC is analyzed comparing its performance in automatic DEM generation to that of an analog camera using a Lidar DEM as reference. Despite the fact that the higher image quality of the DMC should overcome the poorer base-to-height ratio, the presented results did not reach the expected accuracies. However, our current study is not yet conclusive on this topic because the DMC, the analog images and the LIDAR data have not been acquired at the same time. Numéro de notice : A2006-410 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2006.05.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2006.05.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28134
in ISPRS Journal of photogrammetry and remote sensing > vol 60 n° 6 (September 2006) . - pp 375 - 386[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-06061 SL Revue Centre de documentation Revues en salle Disponible Comparison of spectral indices obtained using multiple spectroradiometers / K.L. Castro-Esau in Remote sensing of environment, vol 103 n° 3 (15 August 2006)PermalinkAerosol optical depth and land surface reflectance from multiangle AATSR measurements: global validation and intersensor comparisons / W.M.F. Grey in IEEE Transactions on geoscience and remote sensing, vol 44 n° 8 (August 2006)PermalinkComparison of computational intelligence based classification techniques for remotely sensed optical image classification / D. Stathakis in IEEE Transactions on geoscience and remote sensing, vol 44 n° 8 (August 2006)PermalinkComparison of space borne radar altimetry and airborne laser altimetry over sea ice in the Fram Strait / K.A. Giles in International Journal of Remote Sensing IJRS, vol 27 n°15-16 (August 2006)PermalinkInter-comparison of NOAA-AVHRR and IRS-P4 (MSMR) derived sea surface temperatures / B. Jena in International Journal of Remote Sensing IJRS, vol 27 n°15-16 (August 2006)PermalinkPerformance of change detection using remotely sensed data and evidential fusion: comparison of three cases of application / Sylvie Le Hégarat-Mascle in International Journal of Remote Sensing IJRS, vol 27 n°15-16 (August 2006)PermalinkAssessment of forest structure with airborne LiDAR and the effects of platform altitude / N.R. Goodwin in Remote sensing of environment, vol 103 n° 2 (30/07/2006)PermalinkResolution dependent errors in remote sensing of cultivated areas / M. Ozdogan in Remote sensing of environment, vol 103 n° 2 (30/07/2006)PermalinkSoil moisture mapping and AMSR-E validation using the PSR in SMEX02 / R. Bindlish in Remote sensing of environment, vol 103 n° 2 (30/07/2006)PermalinkA comparative study of Australian cartometric and photogrammetric digital elevation model accuracy / J. Walker in Photogrammetric Engineering & Remote Sensing, PERS, vol 72 n° 7 (July 2006)Permalink