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Rational function model-based image matching for digital elevation models / H.G. Sohn in Photogrammetric record, vol 20 n° 112 (December 2005 - February 2006)
[article]
Titre : Rational function model-based image matching for digital elevation models Type de document : Article/Communication Auteurs : H.G. Sohn, Auteur ; C.H. Park, Auteur ; Hoon Chang, Auteur Année de publication : 2005 Article en page(s) : pp 366 - 383 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] appariement d'images
[Termes IGN] image Ikonos
[Termes IGN] modèle numérique de surface
[Termes IGN] modèle par fonctions rationnellesRésumé : (Auteur) On décrit dans cet article un processus d'appariement des images issues du satellite Ikonos basé sur des modélisations par fonctions rationnelles (RFMs). L'algorithme utilisé situe sa solution dans l'espace objet et réduit le volume des recherches en le restreignant aux ensembles de traits, conformément à la technique d'appariement des traits par segmentation (PML). On présente également le processus détaillé de génération des informations relatives à la surface 3D qui emploie les coefficients des modèles RFM (RFCs) de façon à illustrer le point de vue de l'usager en aval. On aboutit ainsi avec ce processus à un Modèle Numérique des Altitudes présentant une erreur moyenne de 2,2 m et une erreur moyenne quadratique de 3,8 m, par comparaison avec un MNA issu des données d'une carte numérique à l'échelle de 1:5000. Numéro de notice : A2005-471 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2005.00328.x En ligne : https://doi.org/10.1111/j.1477-9730.2005.00328.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27607
in Photogrammetric record > vol 20 n° 112 (December 2005 - February 2006) . - pp 366 - 383[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-05041 RAB Revue Centre de documentation En réserve L003 Disponible Effects of laser beam alignment tolerance on lidar accuracy / D. Latypov in ISPRS Journal of photogrammetry and remote sensing, vol 59 n° 6 (November 2005)
[article]
Titre : Effects of laser beam alignment tolerance on lidar accuracy Type de document : Article/Communication Auteurs : D. Latypov, Auteur Année de publication : 2005 Article en page(s) : pp 361 - 368 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] données lidar
[Termes IGN] erreur systématique
[Termes IGN] étalonnage géométrique
[Termes IGN] faisceau
[Termes IGN] Lidar
[Termes IGN] orientation du capteur
[Termes IGN] plan de vol
[Termes IGN] point d'appui
[Termes IGN] télémétrie laser aéroportéRésumé : (Auteur) One of the major lidar error sources not yet analysed in the literature is the tolerance of the laser beam alignment with respect to the scanning mirror. In this paper, the problem of quantifying these errors is solved for rotating polygon mirror type lidar systems. An arbitrary deviation of the beam from its design direction -the vector of beam misalignment- can be described by two independent parameters. We choose these as horizontal and vertical components of the misalignment vector in the body frame. Either component affects both, horizontal and vertical lidar accuracy. Horizontal lidar errors appear as scan line distortions-along and across track shifts, rotations and scaling. It is shown that the horizontal component of misalignment results in a scan line first being shifted across the track and then rotated around the vertical at the new center of the scan line. Resulting vertical lidar error, being a linear function of the scan angle, is similar to that produced by a roll bias. The vertical component of the beam misalignment causes scan line scaling and an along track shift. The corresponding vertical error is quadratic with respect to the scan angle. The magnitude of these effects is significant even at tight alignment tolerances and cannot be realistically accounted for in the conventional calibration model, which includes only range, attitude and GPS biases. Therefore, in order to attain better accuracy, this model must be expanded to include the beam misalignment parameters as well. Addition of new parameters into the model raises a question of whether they can be reliably solved for. To give a positive answer to this question, a calibration method must utilize not only ground control information, which is typically very limited, but also the relative accuracy information from the overlapping flight lines. Copyright ISPRS Numéro de notice : A2005-491 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2005.09.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2005.09.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27627
in ISPRS Journal of photogrammetry and remote sensing > vol 59 n° 6 (November 2005) . - pp 361 - 368[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-05041 SL Revue Centre de documentation Revues en salle Disponible 3D building modelling with digital map, Lidar data and video image sequences / Y. Zhang in Photogrammetric record, vol 20 n° 111 (September - November 2005)
[article]
Titre : 3D building modelling with digital map, Lidar data and video image sequences Type de document : Article/Communication Auteurs : Y. Zhang, Auteur ; Z. Zhang, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 285 - 302 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] aérotriangulation
[Termes IGN] capteur aérien
[Termes IGN] compensation par faisceaux
[Termes IGN] élément d'orientation externe
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] modélisation 3D
[Termes IGN] orthoimage
[Termes IGN] texture d'imageRésumé : (Auteur) Three-dimensional (3D) reconstruction and texture mapping of buildings or other man-made objects are key aspects for 3D city landscapes. An effective coarse-to-fine approach for 3D building model generation and texture mapping based on digital photogrammetric techniques is proposed. Three video image sequences, two oblique views of building walls and one vertical view of building roofs, acquired by a digital video camera mounted on a helicopter are used as input images. Lidar data and a coarse two-dimensional (2D) digital vector map used for car navigation are also used as information sources. Automatic aerial triangulation (AAT) suitable for a high overlap image sequence is used to give initial values of camera parameters of each image. To obtain accurate image lines, the correspondence between outlines of the building and their line-features in the image sequences is determined with a coarse-to-fine strategy. A hybrid point/line bundle adjustment is used to ensure the stability and accuracy of reconstruction. Reconstructed buildings with fine textures superimposed on a digital elevation model (DEM) and ortho-image are realistically visualised. Experimental results show that the proposed approach of 3D city model generation has a promising future in many applications. Numéro de notice : A2005-381 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2005.00316.x En ligne : https://doi.org/10.1111/j.1477-9730.2005.00316.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27517
in Photogrammetric record > vol 20 n° 111 (September - November 2005) . - pp 285 - 302[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-05031 RAB Revue Centre de documentation En réserve L003 Disponible Development of a robust photogrammetric metrology system for monitoring the healing of bedsores [... pour la surveillance de la guérison des escarres] / A. Malian in Photogrammetric record, vol 20 n° 111 (September - November 2005)
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Titre : Development of a robust photogrammetric metrology system for monitoring the healing of bedsores [... pour la surveillance de la guérison des escarres] Type de document : Article/Communication Auteurs : A. Malian, Auteur ; A. Azizi, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 241 - 273 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] acquisition d'images
[Termes IGN] contrainte géométrique
[Termes IGN] éclairement lumineux
[Termes IGN] méthode robuste
[Termes IGN] orientation du capteur
[Termes IGN] orientation interne
[Termes IGN] photogrammétrie médicale
[Termes IGN] reconstruction 3D
[Termes IGN] surveillance sanitaireRésumé : (Auteur) A three-camera close range photogrammetric system for robust and precise measurement of bedsores has been designed and constructed. MEDPHOS (MEDical PHOtogrammetric System) consists of three synchronised cameras with convergent optical axes. A light projector is fixed in the centre of the rig that holds the cameras. A special dot pattern is projected onto the surface to be measured, to compensate for the lack of natural texture on the wound surface. The proposed algorithm consists of the following steps : the cameras and projector are calibrated so that all interior and exterior parameters are known ; tailored image segmentation procedures are developed and applied for the detection of the projected pattern dots from the uneven background of the images using morphologic operators ; and watershed transformation is used to tackle the problem of overlapping pattern dots. To reduce the effects of non-uniform illumination and specular reflection of light due to humidity (often the case with wounds), a homomorphic transformation is developed and applied to the images. After segmentation of the images, a connected-component labelling procedure is used to establish the points for matching. The centroids of these components were precisely calculated. Intensity-based image matching has been tested without yielding satisfactory results due to the significant deviation from the Lambertian reflection assumption used for solving the correspondence problem. This problem is reliably solved by developing a new algorithm based on geometric constraints that allow feature-based matching and do not need approximate values of the location of the targets in the images. This robust three focal constraint is found to be very effective for matching provided the necessary conditions for the system configuration are met. Auxiliary photometric constraints together with the calibrated projector (which is treated like an active camera) also serve as additional sources of information for reducing the number of remaining ambiguities and checking the consistency of the results. Almost all of the required biometric information can be obtained rapidly, robustly and easily using MEDPHOS. Experimental results showed the effectiveness of the proposed technique. Numéro de notice : A2005-379 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2005.00319.x En ligne : https://doi.org/10.1111/j.1477-9730.2005.00319.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27515
in Photogrammetric record > vol 20 n° 111 (September - November 2005) . - pp 241 - 273[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-05031 RAB Revue Centre de documentation En réserve L003 Disponible Direct sensor orientation for large scale mapping: potential, problems, solutions / N. Yastikli in Photogrammetric record, vol 20 n° 111 (September - November 2005)
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Titre : Direct sensor orientation for large scale mapping: potential, problems, solutions Type de document : Article/Communication Auteurs : N. Yastikli, Auteur ; Karsten Jacobsen, Auteur Année de publication : 2005 Article en page(s) : pp 274 - 284 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] capteur aérien
[Termes IGN] élément d'orientation externe
[Termes IGN] géoréférencement direct
[Termes IGN] GPS-INS
[Termes IGN] Lidar
[Termes IGN] orientation du capteur
[Termes IGN] orientation externe
[Termes IGN] positionnement par GPS
[Termes IGN] radar à antenne synthétiqueRésumé : (Auteur) Georeferencing is one of the most important tasks in photogrammetry. Traditionally it has been achieved indirectly using the well-known method of aerial triangulation. With the availability of integrated GPS and inertial measurement units (IMU), this situation changed. Direct determination of exterior orientation is now possible. Today, direct and integrated sensor orientation is used for a wide range of sensors including lidar and SAR, as well as for digital line scanner systems and aerial cameras. This paper investigates the performance of direct and integrated sensor orientation for large scale mapping using the data-set of the "Integrated Sensor Orientation" test of the European Organisation for Experimental Photogrammetric Research (OEEPE-now known as EuroSDR). The concept, potential, problems and solutions of direct and integrated sensor orientation are discussed. Numéro de notice : A2005-380 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2005.00318.x En ligne : https://doi.org/10.1111/j.1477-9730.2005.00318.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27516
in Photogrammetric record > vol 20 n° 111 (September - November 2005) . - pp 274 - 284[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-05031 RAB Revue Centre de documentation En réserve L003 Disponible GPS and inertial navigation-delivering / F. Artes in GEO: Geoconnexion international, vol 4 n° 8 (september 2005)PermalinkPhotogrammétrie et archéologie sous-marine profonde : le cas de l'épave étrusque grand Ribaud F [2ème partie] / P. Drap in XYZ, n° 104 (septembre - novembre 2005)PermalinkProblèmes relatifs aux ombres d'objets élevés sur les photographies aériennes / Raymond d' Hollander in XYZ, n° 104 (septembre - novembre 2005)PermalinkBias-compensated RPCs [rational polynomial coefficient] for sensor orientation of high-resolution satellite imagery / Clive Simpson Fraser in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 8 (August 2005)PermalinkPermalinkMapping of Quickbird images using the RPC [rational polynomial coefficient] method : improvement in accuracy since release of first Quickbird data / Penggen Cheng in Geoinformatics, vol 8 n° 4 (01/06/2005)PermalinkPhotogrammetric and Lidar data registration using linear features / A. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 6 (June 2005)PermalinkA photogrammetric method for single image orientation and measurement / Antonio Maria Garcia Tommaselli in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 6 (June 2005)PermalinkQuality assessment of digital surface models generated from Ikonos imagery / J. Poon in Photogrammetric record, vol 20 n° 110 (June - August 2005)PermalinkStability analysis and geometric calibration of off-the-shelf digital cameras / A. Habib in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 6 (June 2005)PermalinkSpatial accuracy of orthorectified Ikonos imagery and historical aerial photographs across five sites in China / H. Wang in International Journal of Remote Sensing IJRS, vol 26 n° 9 (May 2005)PermalinkInfluence of system calibration on direct sensor orientation / N. Yastikli in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 5 (May 2005)PermalinkMedical application of multi-camera systems: bedsore analysis using medphos photogrammetric system / Malian Abbass in GIM international, vol 19 n° 4 (April 2005)PermalinkOn improving navigation accuracy of GPS/INS systems / Dorota A. Grejner-Brzezinska in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 4 (April 2005)PermalinkOrtho-rectification of QuickBird satellite / F. Volpe in GEO: Geoconnexion international, vol 4 n° 4 (april 2005)PermalinkAutomatic determination of the optimum generic sensor model based on genetic algorithm concepts / F. Samadzadegan in Photogrammetric Engineering & Remote Sensing, PERS, vol 71 n° 3 (March 2005)PermalinkMetric capabilities of low cost digital cameras for close range surface measurement / Jim H. Chandler in Photogrammetric record, vol 20 n° 109 (March - May 2005)PermalinkNumérique contre argentique : l'exemple de la caméra DiMAC / J. Losseau in Géomatique expert, n° 41- 42 (01/03/2005)PermalinkCalibrage d’imageurs avec prise en compte des distorsions / Nicolas Cornille in Revue des Systèmes, RS - Instrumentation - Mesure - Métrologie, Série I2M, vol 4 n° 3 - 4 (01/01/2005)PermalinkCalibration du photothéodolite de l'IGN et traitements d'images pour la surveillance d'ouvrages au sein de l'unité des travaux spéciaux / Stéphanie Doz (2005)Permalink