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A hybrid approach to UAV data / Debora Caldarelli in GEO: Geoconnexion international, vol 12 n° 7 (july - august 2013)
[article]
Titre : A hybrid approach to UAV data Type de document : Article/Communication Auteurs : Debora Caldarelli, Auteur Année de publication : 2013 Article en page(s) : pp 24 - 25 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] drone
[Termes IGN] estimation de précision
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] photogrammétrie aérienne
[Termes IGN] stéréoscopieRésumé : (Editeur) The author describes a new approach that could help UAV aerial photogrammetry grab a share of the market Numéro de notice : A2013-391 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32529
in GEO: Geoconnexion international > vol 12 n° 7 (july - august 2013) . - pp 24 - 25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 062-2013071 SL Revue Centre de documentation Revues en salle Disponible Geometric calibration of a terrestrial laser scanner with local additional parameters: An automatic strategy / D. Garcia-San-Miguel in ISPRS Journal of photogrammetry and remote sensing, vol 79 (May 2013)
[article]
Titre : Geometric calibration of a terrestrial laser scanner with local additional parameters: An automatic strategy Type de document : Article/Communication Auteurs : D. Garcia-San-Miguel, Auteur ; J.L. Lerma, Auteur Année de publication : 2013 Article en page(s) : pp 122 - 136 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] erreur systématique
[Termes IGN] étalonnage géométrique
[Termes IGN] semis de points
[Termes IGN] télémètre laser terrestre
[Termes IGN] traitement automatique de donnéesRésumé : (Auteur) Terrestrial laser scanning systems are steadily increasing in many fields of engineering, geoscience and architecture namely for fast data acquisition, 3-D modeling and mapping. Similarly to other precision instruments, these systems provide measurements with implicit systematic errors. Systematic errors are physically corrected by manufacturers before delivery and sporadically afterwards. The approach presented herein tackles the raw observables acquired by a laser scanner with additional parameters, a set of geometric calibration parameters that model the systematic error of the instrument to achieve the most accurate point cloud outputs, improving eventual workflow owing to less filtering, better registration and best 3D modeling. This paper presents a fully automatic strategy to calibrate geometrically terrestrial laser scanning datasets. The strategy is tested with multiple scans taken by a FARO FOCUS 3D, a phase-based terrestrial laser scanner. A calibration with local parameters for datasets is undertaken to improve the raw observables and a weighted mathematical index is proposed to select the most significant set of additional parameters. The improvements achieved are exposed, highlighting the necessity of correcting the terrestrial laser scanner before handling multiple data sets. Numéro de notice : A2013-235 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2013.02.007 En ligne : https://doi.org/10.1016/j.isprsjprs.2013.02.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32373
in ISPRS Journal of photogrammetry and remote sensing > vol 79 (May 2013) . - pp 122 - 136[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2013051 RAB Revue Centre de documentation En réserve L003 Disponible Automatic camera calibration in close range photogrammetry / Clive Simpson Fraser in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 4 (April 2013)
[article]
Titre : Automatic camera calibration in close range photogrammetry Type de document : Article/Communication Auteurs : Clive Simpson Fraser, Auteur Année de publication : 2013 Article en page(s) : pp 381 - 388 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] aberration chromatique
[Termes IGN] auto-étalonnage
[Termes IGN] caméra numérique
[Termes IGN] chambre métrique
[Termes IGN] espace objet
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] longueur focale
[Termes IGN] orientation interne
[Termes IGN] photogrammétrie métrologiqueRésumé : (Auteur) Automatic camera calibration using self-calibration with the aid of coded targets is now very much the norm in close-range photogrammetry. This is irrespective of whether the cameras to be calibrated are high-end metric, or the digital SLRs and consumer-grade models that are increasingly being employed for image-based 3D measurement. Automation has greatly simplified the calibration task, but there are real prospects that important camera calibration issues may be overlooked in what has become an almost black-box operation. This paper discusses the impact of a number of such issues, some of which relate to the functional model adopted for self-calibration, and others to practical aspects which need to be taken into account when pursuing optimal calibration accuracy and integrity. Issues discussed include interior orientation stability, calibration reliability, focal plane distortion, image point distribution, variation in lens distortion with image scale, color imagery and chromatic aberration, and whether 3D object space control is warranted. By appreciating and accounting for these issues, users of automatic camera calibration will enhance the prospect of achieving an optimal recovery of scene-independent camera calibration parameters. Numéro de notice : A2013-207 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.79.4.381 En ligne : https://doi.org/10.14358/PERS.79.4.381 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32345
in Photogrammetric Engineering & Remote Sensing, PERS > vol 79 n° 4 (April 2013) . - pp 381 - 388[article]Multitemporal cross-calibration of the Terra MODIS and Landsat 7 ETM+ reflective solar bands / Amit Angal in IEEE Transactions on geoscience and remote sensing, vol 51 n° 4 Tome 1 (April 2013)
[article]
Titre : Multitemporal cross-calibration of the Terra MODIS and Landsat 7 ETM+ reflective solar bands Type de document : Article/Communication Auteurs : Amit Angal, Auteur ; Xianxiong Xiong, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 1870 - 1882 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] distribution du coefficient de réflexion bidirectionnelle BRDF
[Termes IGN] étalonnage radiométrique
[Termes IGN] image EO1-Hyperion
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Terra-MODIS
[Termes IGN] Libye
[Termes IGN] réflectance spectraleRésumé : (Auteur) In recent years, there has been a significant increase in the use of remotely sensed data to address global issues. With the open data policy, the data from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Enhanced Thematic Mapper Plus (ETM+) sensors have become a critical component of numerous applications. These two sensors have been operational for more than a decade, providing a rich archive of multispectral imagery for analysis of mutitemporal remote sensing data. This paper focuses on evaluating the radiometric calibration agreement between MODIS and ETM+ using the near-simultaneous and cloud-free image pairs over an African pseudo-invariant calibration site, Libya 4. To account for the combined uncertainties in the top-of-atmosphere (TOA) reflectance due to surface and atmospheric bidirectional reflectance distribution function (BRDF), a semiempirical BRDF model was adopted to normalize the TOA reflectance to the same illumination and viewing geometry. In addition, the spectra from the Earth Observing-1 (EO-1) Hyperion were used to compute spectral corrections between the corresponding MODIS and ETM+ spectral bands. As EO-1 Hyperion scenes were not available for all MODIS and ETM+ data pairs, MODerate resolution atmospheric TRANsmission (MODTRAN) 5.0 simulations were also used to adjust for differences due to the presence or lack of absorption features in some of the bands. A MODIS split-window algorithm provides the atmospheric water vapor column abundance during the overpasses for the MODTRAN simulations. Additionally, the column atmospheric water vapor content during the overpass was retrieved using the MODIS precipitable water vapor product. After performing these adjustments, the radiometric cross-calibration of the two sensors was consistent to within 7%. Some drifts in the response of the bands are evident, with MODIS band 3 being the largest of about 6% over 10 years, a change that will be corrected in Collection 6 MODIS processing. Numéro de notice : A2013-210 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2235448 En ligne : https://doi.org/10.1109/TGRS.2012.2235448 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32348
in IEEE Transactions on geoscience and remote sensing > vol 51 n° 4 Tome 1 (April 2013) . - pp 1870 - 1882[article]Correlation analysis of camera self-calibration in close range photogrammetry / Rongfu Tang in Photogrammetric record, vol 28 n° 141 (March - May 2013)
[article]
Titre : Correlation analysis of camera self-calibration in close range photogrammetry Type de document : Article/Communication Auteurs : Rongfu Tang, Auteur ; Dieter Fritsch, Auteur Année de publication : 2013 Article en page(s) : pp 86 - 95 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] auto-étalonnage
[Termes IGN] corrélation
[Termes IGN] déformation d'image
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] photogrammétrie métrologiqueRésumé : (Auteur) While the Brown self-calibration model has been widely used in close range photogrammetry for over 40 years, the negative effects of the well-known high correlations between parameters are not clear. This paper presents a novel view and study of these correlations, which are shown to be inherent in the Brown model due to its polynomial nature; they occur exactly as with additional parameters in aerial photogrammetry. Although it has high correlations with the decentring distortion parameters, the principal point can be located precisely (up to a few pixels) in self-calibration with an appropriate image configuration. An alternative model of the in-plane distortion is proposed, which helps to reduce the correlation with principal distance. Numéro de notice : A2013-153 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/phor.12009 Date de publication en ligne : 27/03/2013 En ligne : https://doi.org/10.1111/phor.12009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32291
in Photogrammetric record > vol 28 n° 141 (March - May 2013) . - pp 86 - 95[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-2013011 RAB Revue Centre de documentation En réserve L003 Disponible Improved geolocation and Earth incidence angle information for a fundamental climate data record of the SSM/I sensors / Wesley Berg in IEEE Transactions on geoscience and remote sensing, vol 51 n° 3 Tome 1 (March 2013)PermalinkIn-situ transfer standard and coincident-view intercomparisons for sensor cross-calibration / Kurt Thome in IEEE Transactions on geoscience and remote sensing, vol 51 n° 3 Tome 1 (March 2013)PermalinkOverview of Intercalibration / Gyanesh Chander in IEEE Transactions on geoscience and remote sensing, vol 51 n° 3 Tome 1 (March 2013)Permalinkvol 51 n° 3 Tome 1 - March 2013 - Part 1 of 2 parts (Bulletin de IEEE Transactions on geoscience and remote sensing) / Geoscience and remote sensing societyPermalinkSpectral response function comparability among 21 satellite sensors for vegetation monitoring / Alemu Gonsamo in IEEE Transactions on geoscience and remote sensing, vol 51 n° 3 Tome 1 (March 2013)PermalinkCalibration extrinsèque d'un scanner laser multi-fibre / Anthony Wiart (2013)PermalinkPermalinkEstimation de pose de grands blocs d'images panoramiques issues de systèmes de numérisation mobile / Bertrand Cannelle (décembre 2013)PermalinkÉtude et optimisation du fonctionnement des systèmes 3D de positionnement Topcon sur les machines de travaux publics / Bastien Lopes (2013)PermalinkEuroSDR project Commission 1, Radiometric aspects of digital photogrammetric images / Eija Honkavaara (2013)Permalink