A modified methodology for analysing als observations

• Autorzy: Błaszczyk-Bąk W. , Janowski A. , Kamiński W. , Rapiński J.
• Języki publikacji: PL

Abstrakty

EN

Airborne laser scanning survey results in a set of observation in the form of a point cloud. The point cloud is subjected to a process of further analysis, which consists of the preliminary data processing stage, the main processing stage and the visualisation stage. Such an analysis can lead, among others, to construction of a DTM. In order to improve the effectiveness of the ALS point cloud analysis for the purposes of DTM construction, certain modificationscan be introduced at all of the mentioned stages. The authors of the study propose an improvement to the standard methodology of analysing ALS observations by introducing an optimization algorithm at the preliminary processing stage. In order to smooth a digital terrain model, digital processing techniques and algorithms were also applied.

Słowa kluczowe

PL

geodezja

EN

geodesy

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2011
• Tom: z. 1/90
• Strony: 31--39
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Błaszczyk-Bąk W.

autor

Janowski A.

autor

Kamiński W.

autor

Rapiński J.

• Faculty of Geodesy and Land Managment, Uniwersity of Warmia and Mazury in Olsztyn

Bibliografia

• [1] Błaszczak W., Kamiński W., 2007: Data number reduction in measurement results set using optimization algorithm. FIG Working Week 2007. Strategic Integration of Surveying Services. The Hong Kong Institute of Surveyors. Hong Kong. CD-ROM.
• [2] Błaszczak-Bąk W., Janowski A., 2009: Proposed technology of LIDAR data processing to build DTM. Reports on Geodesy (2/87)
• [3] Błaszczak-Bąk W., Janowski A., Kaminsk W., Rapiński J., 2010a: Modification of Lidar Point Cloud Processing Methodology. FIG Congress. Facing the Challenges – Building the Capacity Sydney, Australia, 11 – 16 April.
• [4] Błaszczak-Bąk W., Janowski A., Kaminsk W., Rapiński J., 2010b: Proposition of aerial laser survey point cloud methodology modification. XXIII Konferencja Katedr i Zakładów Geodezji na Wydziałach Niegeodezyjnych. Praca w recenzji. Gdańsk.
• [5] Borkowski, A., 2004: Modellierung von Oberflchen mit Diskontinuitten. Deutsche Geodtische Kommission Reihe C (Heft Nr 575.).
• [6] Briese C., Pfeifer N., 2001: Airborne laser scanning and derivation of digital terrain models. In: Fifth Conference on Optical 3-D Measurement Techniques, Vienna, Austria.
• [7] Douglas, D. and T. Peuker, 1973: Algorithms for the reduction of the number of points required to represent a digitised line or its caricature, The Canadian Cartographer, Vol 10. pp. 112-122.
• [8] Elmqvist, M., 2002. Ground surface estimation from airborne laser scanner data using active shape models. ISPRS, Commission III, Symposium Photogrammetric Computer Vision, September 9-13, Graz, 114–118.
• [9] Hampel F. R. 1973: Robust estimation: A condensed partial survey. Z. Warsch. verw.Geb.27. von Hansen, W. and Vögtle, T., 1999: Extraktion der Geländeoberfläche aus flugzeuggetragenen Laserscanner-Aufnahmen. Photogrammetrie Fernerkundung Geoinformation, 1999(4).
• [10] Huber P. J. 1981: Robust Statistics. John Wiley and Sons.
• [11] Jóźków G., 2007: Moving polynomial in filtering of airborne laser scanning data. Report of the 2nd ISPRS WG VI/5 and SC 2nd Summer School, Ljubljana, Slovenia July 1-7th
• [12] Kincaid D., Cheney W., 2006: Analiza numeryczna, Wydawnictwa Naukowo-Techniczne, Warszawa 2006, ISBN 83-204-3078-X.
• [13] Kraus K., Otepka J., 2005: NMT Modelling and Visualization – The SCOP Approach. Photogrammetric Week 05', Wichmann Verlag, Heidelberg 2005. s. 241-252
• [14] Lyons R., 2000: Wprowadzenie do cyfrowego przetwarzania sygnałów. Wydawnictwa Komunikacji i Łączności, Warszawa.
• [15] Marmol U., Jachimski J., 2004, A FFT based method of filtering airborne laser scanner data. International Archives of Photogrammetry and Remote Sensing Vol. XXXIII/3, s. 1147-1152, Istanbul.
• [16] Pfeifer, Mandlburger 2008: Lidar Data Filtering and DTM Generation. In (Shan and Toth, ed.) Topographic Laser Ranging and Scanning: Principles and Applications. CRC Press, to appear.
• [17] Sithole G., Vosselman G., 2004: Experimental comparison of filter algorithms for bare-Earth extraction from airborne laser scanning point clouds. ISPRS Journal of Photogrammetry and Remote Sensing, Vo. 59, pp. 85-101.
• [18] Temes G.C., Mitra S.K., 1978: Teoria i projektowanie filtrów. WNT, Warszawa.
• [19] Visvalingam M., Whyatt J. D., 1992: Line generalization by repeated elimination of point. Cartographic Information Systems Research Group, University of Hull.
• [20] Vosselman, G., Maas, H., 2010: Airborne and terrestrial laser scanning, Whittles Publishing.
• [21] Zieliński T. P., 2007: Cyfrowe przetwarzanie sygnałów: od teorii do zastosowań. Wydawnictwa Komunikacji i Łączności, Wyd. 2 popr., Warszawa.