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Browsing by Author "Tokarczyk, Regina Ewa"

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    Item type:Doctoral Dissertation, Access status: Open Access ,
    Wyznaczanie elementów orientacji zewnętrznej zdjęć naziemnych z wykorzystaniem obserwacji fotogrametrycznych, inercjalnych i satelitarnego systemu pozycjonowania
    (2009-12-17) (Data obrony: 2012) Kolecki, Jakub
    Wydział Geodezji Górniczej i Inżynierii Środowiska
    Estimation of exterior orientation parameters (EOP) of images is the fundamental task of photogrammetry. Currently the direct approaches to EOP determination, implemented primarily in mobile mapping system platforms, are preferred. The determination of EOP using measurements of different kind needs the proper integration algorithm. In this work the algorithm designed for integration of photogrammetric, inertial and GPS observations in portable low-cost photogrammetric system is proposed. The system consists of SLR camera, MEMS attitude and heading reference system (AHRS) and GPS set. The calibration of the system was carried out .The two-step algorithm of observation integration was proposed. In the first step the inertial and magnetic measurements are integrated using the AHRS Kalman filter. The exterior orientation parameters of images are calculated using the system calibration parameters. In the second step the combined bundle adjustment with observed EOP is calculated. As a result the estimated EOP are obtained. The performance of proposed algorithm under various network configuration was analyzed in the context of accuracy, redundancy and reliability. Besides, the inclusion of geometric constrains like measured distances, vertically and horizontality of tie lines was examined. The obtained accuracies satisfy the demands of most photogrammetric applications like 3D building modeling.