Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 6, pp. 283-289
Accuracy assessment of photogrammetric intersection for random shooting case. The general approach to solving the problem
V. M. Bezmenov
1 , K. I. Safin
1 1 Kazan Federal University, Kazan, Russia
Accepted: 24.10.2019
DOI: 10.21046/2070-7401-2019-16-6-283-289
A general approach to the problem of estimating the accuracy of photogrammetric intersection for an arbitrary shooting case is considered. Analytical formulas for calculating errors of spatial coordinates at any values of elements of external and internal orientation of the shooting camera are obtained. The solution is obtained for the system of external orientation angles (Euler angles) recommended by the international society of photogrammetry and remote sensing. The results are generalized by comparison with the solution obtained earlier for the system of external orientation angles, known in the Russian literature as the second system of external orientation angles. The results of numerical experiments simulating aerial photography and space photography are presented. It is shown that the general approach to the problem of estimating the accuracy of the photogrammetric intersection has sufficient universality, allowing to obtain a solution for other systems of external orientation angles, since a significant part of the analytical expressions used to calculate the errors of spatial coordinates will be common for different systems of external orientation angles. The approach to assessing the accuracy of spatial coordinates of the points of the object under study from image processing can be used in space research: the study of the size and shape of the object under study at the initial stage of its research, the construction and development of a coordinate system for the object by space phototriangulation, etc.
Keywords: digital photogrammetry, photogrammetric intersection, spatial coordinates, accuracy estimation, mean square error, elements of external orientation, elements of interior orientation
Full textReferences:
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