In order to measure the highly tilted test field from a very
short distance, each point is to be focused individually
for image coordinate measurement. This improves the
accuracy of the calculation of object points and
especially the accuracy of the interior orientation. All
three photogrammetric systems use object lenses
whose distortion can be described adequately only
using the radially symmetrical parameters. Parameters
of tangential distortion could not be determined.
5. CONCLUSION
A comparison is made between a new photogrammetric
on-line system, on the one hand, and conventional
systems designed for highly accurate industrial
measurements on the other. Comparison shows that a
level of accuracy could be reached with the Réseau-
Scanning Camera which up to now appeared to be
reserved for analogue mid-size cameras.
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