Integration of Automatic Processes into Semi-automatic Building Extraction

The modeling of three-dimensional objects is a current topic in digital photogrammetric research. The modeling of buildings in digital imagery or digital surface models involving automation processes has reached a level where it can compete with classical photogrammetric stereo measurements. There are many different ways on how to integrate automation. We describe our system and its automated features that support the operator in the adaption of parametric models to multiple overlapping images. There do exist tools to automate the measurement of heights, to automate the estimation of the form parameters or for the handling of building aggregates. With such tools we can reach about 20 seconds for the modeling of a volumetric primitive which is fully comparable to the currently used photogrammetric methods.