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Auteur Petri Rönnholm |
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Affiner la recherche Interroger des sources externesRegistration quality - towards integration of laser scanning and photogrammetry / Petri Rönnholm (2011)
Titre : Registration quality - towards integration of laser scanning and photogrammetry Autre titre : Atlas of INSPIRE implementation methods Type de document : Rapport Auteurs : Petri Rönnholm, Auteur ; Ingrid Vanden Berghe, Auteur ; Joep Crompvoets, Auteur ; Walter de Vries, Auteur ; Jantien E. Stoter, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2011 Collection : EuroSDR official publication, ISSN 0257-0505 num. 59 Importance : 298 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-90-5179-768-8 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] acquisition de données
[Termes IGN] analyse comparative
[Termes IGN] enregistrement de données
[Termes IGN] instrument aéroporté
[Termes IGN] intégration de données
[Termes IGN] lasergrammétrie
[Termes IGN] photogrammétrie numériqueIndex. décimale : 33.30 Photogrammétrie numérique Résumé : (Auteur)1 : Laser scanning and photogrammetry are powerful 3D data acquisition methods providing both overlapping and complementary information. Currently, integration of laser data and images provides the most complete information for various surveying and 3D modelling tasks. However, this integration requires that both data sets are accurately oriented to the same coordinate system. In 2008, the EuroSDR launched the project "Registration Quality - Towards Integration of Laser Scanning and Photogrammetry" in order to collect knowledge about current registration methods and their performance. The project attracted the involvement of numerous research institutes and companies. Therefore, this test gives a quite extensive set of examples and comparisons of the most important registration strategies today. The empirical results indicated that the relative orientation of airborne laser scanning data and aerial images is a feasible method in order to get data sets within the common coordinate frame. The experiment revealed that, currently, the level of automation was not the most significant factor affecting the quality of registration. More important factors included the type of tie features and the implementation of the methods. The processing time was shortest with most automatic methods, whereas the amount of manual work tended to increase the processing times. It should be noted that many of the methods were still at the developmental stage. It is expected that the performance and processing speed, in most cases, can be enhanced in the future. The test data represented an urban area and many of the methods relied upon certain objects, such as buildings. Therefore, the performance of applied methods in non-built environments should be investigated separately. ;
(Auteur)2 : This report is the final report of the EuroSDR project "Atlas of INSPIRE Implementation Methods". In two two-day workshops and one pre-workshop of the INSPIRE Conference in Krakow, June, 2010 we investigated strategies to implement INSPIRE in several members states. We focused specifically on the relations between the implemented strategy and how successful the INSPIRE implementation is perceived in a specific country. A questionnaire was carried out as well. This report describes the project, presents the conclusions and contains the main deliverables of the project which are: -Two workshop reports - Research agenda for the implementation of INSPIRE -A network of SDI-practitioners and scientists across Europe that are strongly involved in the development of INSPIRE SDI-strategies -Scientific paper publications Scientific paper publications: published IJSDIR article [1] and article in progress for CEUS (Journal for Computers, Environment and Urban Systems) -INSPIRE-Conference pre-conference workshop, abstract and presentation -Key documents collection regarding INSPIRE-implementation -Prototype INSPIRE atlas (see: http://www.spatialist.be)Note de contenu : Registration quality - towards integration of laser scanning and photogrammetry
1 INTRODUCTION
2 DESCRIPTION OF THE PROJECT
2.1 Aims of the project.
2.2 Participants.
2.3 Description of test data
2.4 Reference data.
2.5 Test procedure.
3 SHORT DESCRIPTIONS OF THE APPLIED METHODS
3.1 Method of the Aalto University School of Engineering (Aalto).
3.2 Method of the Dublin Institute of Technology (DIT).
3.3 Method of the Finnish Geodetic Institute, Aalto University School of Engineering and
TerraSolid Oy (FGI et al.)
3.4 Method of the Independent Research Group on Geospatial (IRGG)
3.5 Method 1 of the National Geographic Institute, Spain (IGN-1).
3.6 Method 2 of the National Geographic Institute, Spain (IGN-2) .
3.7 Planar patches method of the University of Calgary (UofC-1).
3.8 Straight lines method of the University of Calgary (UofC-2).
3.9 Combined method of the University of Calgary (UofC-3).
3.10 Method of the University College London (UCL).
3.11 ICP-based method of the University of Stuttgart (IFP-1).
3.12 Point-Based method of the University of Stuttgart (IFP-2)
3.13 Method of the Vienna University of Technology (IPF)
4 RESULTS AND DISCUSSION
4.1 Comparison of planimetric accuracies.
4.2 Comparison of vertical accuracies.
4.3 Comparison of accuracies in rotations.
4.4 Influence of the type of tie features
4.5 Influence of the analytical characteristics of the applied methods
4.6 Influence of the level of automation
4.7 Processing time
5 SUMMARY AND CONCLUSIONS
6 ACKNOWLEDGEMENTS
7 REFERENCES
Atlas of INSPIRE implementation
1 INTRODUCTION
2 QUESTIONNAIRE
2.1 Introduction
2.2 Questions
2.3 Analysis of the questionnaire responses
2.4 Conclusions of the questionnaire
3 REPORT OF 1ST PROJECT WORKSHOP, 29 & 30 APRIL 2009
3.1 Introduction
3.2 Brief description of the Workshop 29 - 30 April 2009
3.3 Research questions identified by the participants
3.4 Main observations during the workshop
3.5 Remarkable quotes
4 REPORT OF 2ND PROJECT WORKSHOP 14/15 JANUARY 2010
4.1 Introduction
4.2 Successes and disappointments
4.3 Propositions
4.4 Research agenda
4.5 Concluding remarks
5 PRE-CONFERENFE INSPIRE WORKSHOP, 22 JUNE 2010
6 CONCLUSIONNuméro de notice : 10477 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport d'étude technique En ligne : http://www.eurosdr.net/sites/default/files/uploaded_files/eurosdr_publication_nd [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62449 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 10477-01 33.30 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Documents numériques
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Eurosdr bull 59Adobe Acrobat PDFComparison of measurement techniques and static theory applied to concrete beam deformation / Petri Rönnholm in Photogrammetric record, vol 24 n° 128 (December 2009 - February 2010)
Titre : Comparison of measurement techniques and static theory applied to concrete beam deformation Type de document : Article/Communication Auteurs : Petri Rönnholm, Auteur ; M. Nuikka, Auteur ; Antero Kukko, Auteur ; Harri Kaartinen, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 351 - 371 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] analyse comparative
[Termes IGN] déformation d'édifice
[Termes IGN] faisceau
[Termes IGN] photogrammétrie terrestre
[Termes IGN] positionnement en intérieur
[Termes IGN] processus
[Termes IGN] surveillance d'ouvrage
[Termes IGN] tachéomètre électronique
[Termes IGN] télémétrie laser sur satelliteRésumé : (Auteur) In this paper, terrestrial laser scanning (TLS), photogrammetric and total station measurements were compared with dial gauge observations in two different loading experiments on a reinforced concrete beam. In the first test, the T-beam was stressed in several loading phases resulting in deformations of up to 13·63 mm. All measuring methods were able to detect deformations with an accuracy of better than 0·38 mm. The theoretical calculations of deflections based on a form of Euler–Bernoulli beam equation, however, underestimated the maximum bending of 4·08 mm. A similar loading experiment was applied on a rectangular concrete beam. In this case, the maximum deformation of the beam was 14·94 mm and measuring accuracies of all methods were better than 0·44 mm. The accuracy of theoretical calculations was better than 2·07 mm. The results indicate that laser scanning could be used as an alternative or complementary method to photogrammetric and total station measurements for detecting structural deformations in buildings. Copyright RS&PS + Blackwell Publishing Numéro de notice : A2009-497 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.2009.00548.x En ligne : https://doi.org/10.1111/j.1477-9730.2009.00548.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30126
in Photogrammetric record > vol 24 n° 128 (December 2009 - February 2010) . - pp 351 - 371[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 106-09041 RAB Revue Centre de documentation En réserve L003 Disponible Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)
Titre : Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland Type de document : Actes de congrès Auteurs : Petri Rönnholm, Éditeur scientifique ; H. Hyyppä, Éditeur scientifique ; Juha Hyyppä, Éditeur scientifique Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2007 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 num. 36-3/W52 Conférence : ISPRS 2007, Workshop Laser Scanning and Silvilaser 12/09/2007 14/09/2007 Espoo Finlande OA Proceedings Langues : Anglais (eng) Numéro de notice : 17342 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans En ligne : http://www.isprs.org/proceedings/XXXVI/3-W52/ Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83559 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 17342-01 DEP-EXM Livre LASTIG Dépôt en unité Exclu du prêt
