elements of exterior orientation (kK, @, @, Xo, Yo, Zo),
its standard deviations (0, O 0: VO ac ha fe)
a
0 , ) and estimated variance factor ( o? ) are estimated
in the process of rigidity constraint by least squares
method. V4 and V, are residuals of a and b , respectively,
2 . . . .
and 0, is the a priori variance factor.
A statistical test based on Chi-Squared distribution Cy? )
with 6 degrees of freedom and level of significance of
196 was applied to the obtained correspondences. This
statistical test showed that Oo; and o? were
statistically equal. Then, the correspondences could be
considered statistically correct.
4 CONCLUSION
This paper briefly presented the principles of matching
method and preliminary experiment based on simulated
data. As already mentioned, this method is based on
relational paradigm and rigidity constraint. In addition,
the method does not require points as ground control.
Instead of points, only straight features are required.
Although only preliminary results are available, using
simulated date, the method seems to be promising. In
the future, other experiments will be performed with
simulated and real data, which will allow more realistic
conclusion.
ACKNOWLEDGEMENTS
The authors are thankful to Prof. Jodo Francisco Galera
Mónico for providing a critical review of the paper and
CAPES.
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