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Empirical investigations on 3D building extraction

The two following questions are central for this investigation:

1.
What advantages offers a semi-automatic acquisition compared to classical photogrammetry for the acquisition of larger areas?
2.
How can a semi-automatic object extraction in laser scan data be applied to urban areas?

As first criteria (Phase I) for the empirical comparison have been chosen the efficiency (time and costs) as well as accuracy. In Phase II further questions concerning quality, level of detail, acqusition generalization, object types etc. are to be investigated.



Eberhard Guelch
1998-03-24