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Оценка возможности применения сингулярного разложения матриц при определении пространственного положения снимков земной поверхности

Оценка возможности применения сингулярного разложения матриц при определении пространственного положения снимков земной поверхности

Abstract

The possibility of applying singular value decomposition of matrices for solving the reverse photogrammetric notch which is one of the main problems of analytical photogrammetry is considered. Checking the possibility of using SVD was fulfilled by means of analytical models of surface and photos and of "real" photo as well. The paper contains the results of solving the problem. One can see that methods of gaussian elimination and singular value decomposition are identical. It was proved that the use of singular value decomposition allows to find out the elements of orientation of the photo in space without making up the system of normal equations and to increase the reliability of solving the problem to a great extent.

В статье рассматривается возможность применения сингулярного разложения матриц для решения обратной фотограмметрической засечки, являющейся одной из основных задач аналитической фотограмметрии. Проверка возможности использования SVD-разложения выполнена на аналитических моделях местности и снимков, а также на реальном снимке. Приведены результаты решения задачи. Показано, что методы гауссова исключения и сингулярного разложения равноточны. Установлено, что применение сингулярного разложения позволяет определить элементы ориентирования снимка в пространстве без составления системы нормальных уравнений и значительно повысить надежность решения задачи.

Keywords

ФОТОГРАММЕТРИЯ, СНИМОК, ОБРАТНАЯ ЗАСЕЧКА, ЭЛЕМЕНТЫ ВНЕШНЕГО ОРИЕНТИРОВАНИЯ, СИНГУЛЯРНОЕ РАЗЛОЖЕНИЕ, ЧИСЛО ОБУСЛОВЛЕННОСТИ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold