International cooperation and technology transfer

Fras, Mojca Kosmatin

Bibliographic data

Monograph

Persistent identifier:: 856490555

Author:: Fras, Mojca Kosmatin

Title:: International cooperation and technology transfer

Sub title:: Ljubljana, Slovenia, February 2 - 5, 2000 : proceedings of the workshop

Scope:: VI, 163 Seiten

Year of publication:: 2000

Place of publication:: London

Publisher of the original:: RICS Books

Identifier (digital):: 856490555

Illustration:: Illustrationen, Diagramme

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: A LOW COST MOBILE MAPPING SYSTEM. A. Vettore, A. Guarnieri

Document type:: Monograph

Structure type:: Chapter

160 7. CONCLUSIONS. We have presented the current state of our research in order to develope a low cost mobile mapping system, providing sufficient accuracy to perform road surveys for GIS applications. The lack of the INS has lead us to implement a georeferencing algorithm by which the istantaneous position and orientation of the van can be recovered by the differentially corrected GPS data only. For the same reason above, we can't get the 3D coordinates of any object selected on corresponding images, but rather its 2D coordinates on a projection map, therefore the object elevation cannot be restituted. Anyway, the capability to locate on a map any feature of interest through rapid road survey has represented our primary goal in developing such a MMS. At the present we have carried out only separated tests for the various modules which make up GeoVision, but we have in plan to assess the performances of the whole surveying system in real environment, testing it capabilities for real time data acquisition and the final accuracy for object position as derived by post-proces sing step. Through the contribution provided us by the VRG (Virtual Reality Group) of NRC Canada, this mobile mapping system can be integrated with the BIRIS sensor, in order to detect the road surface deformations. ACKNOWLEDGMENTS We acknowledge J. A. Beraldin and F. Blais of VR Group of NRC Canada, for the use of BIRIS sensor in road survey applications, and ing. A. Menin of Buil ding and Transports Department of Padua University, for the help spent to assemble the system. This work was developed with the project "Digital surface modeling by laser scanning and GPS for 3D city models and digital orthophotos", partly financed by MURST (Italian Ministry of University and Research) in 1999 as a project of relevant national interest. National coordinator: Riccardo Galetto, Head of the research unit: Antonio Vettore. [4] Foerstner W., 1982. “Feature extraction in Digital Photogrammetry.” Photogrammetry Record 14, pp 595-611. [5] Gelb A., 1984. “Applied Optimal Estimation", Cambridge, The M.I.T. Press. [6] Guarnieri A., Vettore A., 1999. "Procedures of correction of the geometry distortions for digital images", ISPRS Commission VI, WG 3 [7] Picei G., “Corso di Identificazione e Analisi dei dati”, Università di Padova, Facoltà di Ingegneria Elettronica. [8] Schwarz K.P., 1998. “Mobile Multi-Sensor System Modelling and Estimation”, Proceedings Geodesy for Geotechnical and Structural Engineering, IAG Special Commission 4. [9] Soatto S., Frezza R., Perona P.,1996. “Motion estimation via dynamic vision. ” IEEE Trans, on PAMI41 n. 3, pp. 393-413. [10] Tornasi C., Kanade T., 1991. “Shape and motion from image streams; a factorization method. Detection and tracking of point feature. ” Tech. Report CMU-CS-132. [11] Tsai R. Y., 1987. “A versatile camera calibration technique for high accuracy 3D machine vision metrology using off-the-shelf TV camera and lenses. ” IEEE Journal of Robotics and Automation 3 n.4, pp 323-344. REFERENCES [1] Badin C., Targa G., Vettore A., 1996. “Wingeo a software for geodetic coordinate transforma tion", Università di Padova, Istituto di Topografia. [2] Bortolozzo G., Guarnieri A., Vettore A., 1999. "Geovision: a digital photogrammetric software for road survey", Trieste [3] El-Sheimy N., Schwarz K. P., Wei M., Lavigne M.,, 1995. “VISAT: A Mobile City Survey System of High Accuracy", The 8 th International Technical Meeting of the Satellite Division of the Institute of Naviga tion, ION 95, Palm Springs.

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