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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004
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Table 11. Result of the misalignment estimation
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Table 12. Internal accuracy of normal AT and simultaneous adjustment
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Figure 13. Error ellipsoid of normal AT (left) and simultaneous adjustment (right)
3.3 Result of internal accuracy
Comparison of internal accuracy between normal aerial
triangulation and simultaneous bundle adjustment with 4 GCPs
is also shown in Table 13. Figure 14 is a plot of the error
ellipsoid.
This test block has dense and tie points were well-distributed.
Therefore even exterior orientation parameters derived from
DGS is not introduced, internal accuracy was higher than
manual aerial triangulation. Additionally, simultaneous
adjustment improved the block accuracy especially at the
periphery of the block.
863
4. CONCLUSION
It is confirmed that simultaneous bundle adjustment using POS
AV/DG 310 has sufficient accuracy level for large scale
mapping. Automatic tie point generation using exterior
orientation parameters produced by DGS made dense and high
accurate tie points and block geometry were noticed more
stronger. Datum shift estimation eliminated systematic error.
Simultaneous misalignment adjustment is also possible if block
has two or more strips.
