DIGITAL CLOSE-RANGE PHOTOGRAMMETRY IN BUILDING INDUSTRY

DIGITAL CLOSE-RANGE PHOTOGRAMMETRY IN BUILDING INDUSTRY

Paper in proceedings (conference paper)

The elementary idea of this experiment is using digital close-range photogrammetry for monitoring of deformations during the load test of testing construction namely, what is important, with using two photogrammetrical softwares: PhotoModeler and Orpheus. In software PhotoModeler is possible to carry out automatic subpixel measurements but in software Orpheus no, here is possible to apply only manual measurements. On the basis of this, it was supposed that better results will be achieved with using PhotoModeler. After computing spatial coordinates of points, which are placed on testing construction, was calculated resultant movements in coordinate X and Z among individual load states in this points. Results was compared with movements, which was determined by method of very precise levelling and method of polar method. It shows that we obtain significantly better results, when computing is carry out in software Orpheus. This method is only one, which gave more complex result in this case, it means, changes of construction shape at whole extent, of course, which suitably worse results, compared with method of very exact levelling, which however gives information about differences only in Z coordinates.

The elementary idea of this experiment is using digital close-range photogrammetry for monitoring of deformations during the load test of testing construction namely, what is important, with using two photogrammetrical softwares: PhotoModeler and Orpheus. In software PhotoModeler is possible to carry out automatic subpixel measurements but in software Orpheus no, here is possible to apply only manual measurements. On the basis of this, it was supposed that better results will be achieved with using PhotoModeler. After computing spatial coordinates of points, which are placed on testing construction, was calculated resultant movements in coordinate X and Z among individual load states in this points. Results was compared with movements, which was determined by method of very precise levelling and method of polar method. It shows that we obtain significantly better results, when computing is carry out in software Orpheus. This method is only one, which gave more complex result in this case, it means, changes of construction shape at whole extent, of course, which suitably worse results, compared with method of very exact levelling, which however gives information about differences only in Z coordinates.

DIGITAL CLOSE-RANGE PHOTOGRAMMETRY IN BUILDING INDUSTRY

SUCHÁ, Miroslava; KALVODA, Petr

04.05.2005

ATUT

Wroclaw

83-89247-83-6

sborník

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85

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