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Rational function model for sensor orientation of IRS-P6 LISS-4 imagery / V. Nagasubramanian in Photogrammetric record, vol 22 n° 120 (December 2007 - February 2008)
[article]
Titre : Rational function model for sensor orientation of IRS-P6 LISS-4 imagery Type de document : Article/Communication Auteurs : V. Nagasubramanian, Auteur ; P. Radhadevi, Auteur ; R. Ramachandran, Auteur ; R. Krishnan, Auteur Année de publication : 2007 Article en page(s) : pp 309 - 320 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] géométrie de l'image
[Termes IGN] géoréférencement direct
[Termes IGN] image IRS-LISS
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] orientation du capteur
[Termes IGN] point d'appuiRésumé : (Auteur) This paper explores the application of a rational function model (RFM) as a replacement sensor model for IRS-P6 LISS-4 imagery. The rational polynomial coefficients (RPCs), initially generated using a rigorous sensor model (RSM) through direct georeferencing, are bias-compensated with a minimum number of ground control points and are used for various photogrammetric applications such as digital elevation model and ortho-image generation. The performance of RFM and RSM is compared in the sensor modelling of LISS-4 imagery over long strips. Results show that accuracies achieved using RFM are within 1 pixel (worst case) of the accuracies derived using RSM. Error variation as a function of the number of quasi-control points (anchor points) used for RFM fitting as well as model errors with respect to the length of the image strip are analysed. System-level accuracy does not deteriorate when the RFM is fitted up to a length of 1200 km. Absolute positioning accuracy of 1·5 pixels (~9 m) is achieved from bias-compensated RPCs. The results demonstrate the potential of RFM as a replacement sensor model. This allows standardisation of product generation packages to handle multiple sensors. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2007-567 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2007.00447.x En ligne : https://doi.org/10.1111/j.1477-9730.2007.00447.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28930
in Photogrammetric record > vol 22 n° 120 (December 2007 - February 2008) . - pp 309 - 320[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-07041 Revue Centre de documentation Revues en salle Disponible Comprehensive analysis of sensor modelling alternatives for high-resolution imaging satellites / A. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 11 (November 2007)
[article]
Titre : Comprehensive analysis of sensor modelling alternatives for high-resolution imaging satellites Type de document : Article/Communication Auteurs : A. Habib, Auteur ; S.W. Shin, Auteur ; Kamyoung Kim, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 1241 - 1251 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] capteur en peigne
[Termes IGN] élément d'orientation externe
[Termes IGN] élément d'orientation interne
[Termes IGN] géométrie de l'image
[Termes IGN] image Ikonos
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] orientation du capteur
[Termes IGN] point d'appuiRésumé : (Auteur) High-resolution imaging satellites are a valuable and cost effective data acquisition tool for a variety of mapping and GIS applications such as topographic mapping, map updating, orthophoto generation, environmental monitoring, and change detection. Sensor modeling that describes the mathematical relationship between corresponding scene and object coordinates is a prerequisite procedure prior to manipulating the acquired imagery from such systems for mapping purposes. Rigorous and approximate sensor models are the two alternatives for describing the mathematics of the involved imaging process. The former explicitly involves the internal and external characteristics of the imaging sensor to faithfully represent the geometry of the scene formation. On the other hand, approximate modeling can be divided into two categories. The first category simplifies the rigorous model after making some assumptions about the system’s trajectory and/or object space. Gupta and Hartley’s model, parallel projection, self-calibrating direct linear transformation, and modified parallel projection are examples of this category. Other approximate models are based on empirical formulation of the scene-to-ground mathematical relationship. This category includes among others, the well-known Rational Function Model (RFM). This paper addresses several aspects of sensor modeling. Namely, it deals with the expected accuracy from rigorous modeling of imaging satellites as it relates to the number of available ground control points, comparative analysis of approximate and rigorous sensor models, robustness of the reconstruction process against biases in the available sensor characteristics, and impact of incorporating multi-source imagery in a single triangulation mechanism. Following a brief theoretical background, these issues will be presented through experimental results from real datasets captured by satellite and aerial imaging platforms. Copyright ASPRS Numéro de notice : A2007-515 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.73.11.1241 En ligne : http://dx.doi.org/10.14358/PERS.73.11.1241 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28878
in Photogrammetric Engineering & Remote Sensing, PERS > vol 73 n° 11 (November 2007) . - pp 1241 - 1251[article]DEM control in Arctic Alaska with Icesat laser altimetry / D.K. Atwood in IEEE Transactions on geoscience and remote sensing, vol 45 n° 11 Tome 2 (November 2007)
[article]
Titre : DEM control in Arctic Alaska with Icesat laser altimetry Type de document : Article/Communication Auteurs : D.K. Atwood, Auteur ; R. Guritz, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 3710 - 3720 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] Alaska (Etats-Unis)
[Termes IGN] altimétrie satellitaire par laser
[Termes IGN] Arctique
[Termes IGN] Arctique, océan
[Termes IGN] données ICEsat
[Termes IGN] glaciologie
[Termes IGN] GPS en mode différentiel
[Termes IGN] image ERS-SAR
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] modèle numérique de surface
[Termes IGN] point d'appui
[Termes IGN] positionnement différentielRésumé : (Auteur) Use of Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry is demonstrated for control of a digital elevation model (DEM) that is synthesized from repeat-pass ERS-1 and 2 synthetic aperture radar (SAR) imagery using interferometric SAR (InSAR). Our study area is 15650 km2 of the Barrow, AK coastal plain adjacent to the Arctic Ocean; a vast expanse of tundra, lakes, and arctic wetlands of such low relief as to be nearly devoid of terrain features. The accuracy of the ICESat-derived elevation measurements is assessed by comparison with differential global positioning system (DGPS) data acquired along ICESat ground tracks. The ICESat-derived elevations have a mean accuracy, relative to the DGPS elevations, of 0.01 +0.18 m. ICESat-derived elevations on the Arctic coastal plain provide an excellent source for DEM control. We employ the ICESat-derived ground control points (GCPs) in two distinct InSAR processing steps: 1) selected points are used to perform baseline refinements, which improves the ERS-1 and 2 interferograms and 2) the ICESat-derived GCP position data (latitude, longitude, elevation) are then used as control in mosaicking multiple InSAR-derived OEMs. The resulting ICESat-controlled DEM has a mean accuracy of-1.11 + 6.3m relative to an independent standard, which is a commercial airborne InSAR-derived DEM having 0.5 m rms accuracy. This easily meets DTED-2 standards and suggests that DEMs derived using only ICESat altimetry for ground control would meet similar standards in other regions of low relief. Copyright IEEE Numéro de notice : A2007-509 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2007.904335 En ligne : https://doi.org/10.1109/TGRS.2007.904335 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28872
in IEEE Transactions on geoscience and remote sensing > vol 45 n° 11 Tome 2 (November 2007) . - pp 3710 - 3720[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-07111B RAB Revue Centre de documentation En réserve L003 Disponible Line-of-sight vector adjustment model for geopositioning of SPOT-5 stereo images / Hyung-Sup Jung in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 11 (November 2007)
[article]
Titre : Line-of-sight vector adjustment model for geopositioning of SPOT-5 stereo images Type de document : Article/Communication Auteurs : Hyung-Sup Jung, Auteur ; S.W. Kim, Auteur ; J.S. Wong, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 1267 - 1276 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] couple stéréoscopique
[Termes IGN] distorsion d'image
[Termes IGN] géoréférencement
[Termes IGN] image SPOT 5
[Termes IGN] image SPOT-HRG
[Termes IGN] ligne de visée
[Termes IGN] orbitographie
[Termes IGN] point d'appui
[Termes IGN] stéréoscopieRésumé : (Auteur) We formulate and present a new geopositioning method for SPOT-5 High-Resolution Geometric (HRG) stereo images, named the line-of-sight (LOS) vector adjustment model. It is applicable to satellites that move along a well-defined close-to-circular elliptical orbit with a predicted orbit close to true. SPOT-5 satisfies these requirements because it has the improved capability of providing accurate satellite attitude and a look angle for each detector. The method’s core idea is that only the LOS vector was adjusted when correcting the geometric distortion of SPOT-5 imagery. One advantage of this method is that it achieves high geopositioning accuracy with a limited number of ground control points (GCPs). Although a minimum of three GCPs is needed for processing, a test result satisfied the accuracy requirement within one pixel of a SPOT-5 panchromatic image even with only three GCPs. The performance in terms of root mean square error (RMSE) improved as the number of GCPs increased. Five GCPs were found to be the optimal number in the practical application of the LOS vector adjustment model. Using five GCPs, the RMSEs were 0.48 m and 0.64 m in planimetry and height, respectively. The test results indicate that the proposed method is superior to the bundle adjustment method for the geopositioning of SPOT-5 HRG stereo images. Copyright ASPRS Numéro de notice : A2007-517 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.73.11.1267 En ligne : http://dx.doi.org/10.14358/PERS.73.11.1267 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28880
in Photogrammetric Engineering & Remote Sensing, PERS > vol 73 n° 11 (November 2007) . - pp 1267 - 1276[article]Practical geodesy: part 6 software set-up / Huibert-Jan Lekkerkerk in Geoinformatics, vol 10 n° 7 (01/11/2007)
[article]
Titre : Practical geodesy: part 6 software set-up Type de document : Article/Communication Auteurs : Huibert-Jan Lekkerkerk, Auteur Année de publication : 2007 Article en page(s) : pp 40 - 41 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] point d'appui
[Termes IGN] système d'information géographique
[Termes IGN] système de positionnement par satellites
[Termes IGN] système de référence géodésiqueRésumé : (Auteur) Every GIS program or GPS system needs at some point to have a few parameters set. The background of most settings was discussed in the previous articles, but which parameters are truly necessary and wich settings should be made ? In this article an overview of the various settings is given. Copyright GEOinformatics Numéro de notice : A2007-498 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28861
in Geoinformatics > vol 10 n° 7 (01/11/2007) . - pp 40 - 41[article]Voir aussiRéservation
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Code-barres Cote Support Localisation Section Disponibilité 262-07071 SL Revue Centre de documentation Revues en salle Disponible The impact of relative radiometric calibration on the accuracy of kNN-predictions of forest attributes / T. Koukal in Remote sensing of environment, vol 110 n° 4 (30/10/2007)PermalinkPALSAR data without ground control points / Penggen Cheng in Geoinformatics, vol 10 n° 6 (01/09/2007)PermalinkReprésentation 3D architecturale du temple d'Auguste et Livie à Vienne (Isère) / C. Ravier in XYZ, n° 112 (septembre - novembre 2007)PermalinkAutomated sensor block adjustment and local satellite positioning: benefits and perspectives for mapping applications / A. Le Guellec in Revue Française de Photogrammétrie et de Télédétection, n° 185 (Mars 2007)PermalinkGestion d'ouvrage architectural : de la saisie photogrammétrique à l'interface 3D d'accès aux données patrimoniales / Emmanuel Alby in XYZ, n° 110 (mars - mai 2007)PermalinkLiDAR-derived high quality ground control information and DEM for image orthorectification / X. Liu in Geoinformatica, vol 11 n° 1 (March - May 2007)PermalinkMeasuring rice paddy persistence spanning a century with Japan's oldest topographic maps: georeferencing the Rapid Survey Maps for GIS analysis / D.S. Sprague in International journal of geographical information science IJGIS, vol 21 n° 1-2 (january 2007)PermalinkPerformance analysis of integrated sensor orientation / A. Ip in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 1 (January 2007)Permalink3D physical versus empirical models for HR sensor orientation and elevation extraction: examples with Ikonos and Quickbird / Thierry Toutin in Revue Française de Photogrammétrie et de Télédétection, n° 184 (Décembre 2006)PermalinkAn improved model for along track stereo sensors using rigorous orbit mechanics and navigation data / P. Michalis in Revue Française de Photogrammétrie et de Télédétection, n° 184 (Décembre 2006)Permalink