ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume IV-2/W4
https://doi.org/10.5194/isprs-annals-IV-2-W4-243-2017
https://doi.org/10.5194/isprs-annals-IV-2-W4-243-2017
13 Sep 2017
 | 13 Sep 2017

AUTOMATIC BUILDING ABSTRACTION FROM AERIAL PHOTOGRAMMETRY

A. Ley, R. Hänsch, and O. Hellwich

Keywords: Aerial imagery, photogrammetry, 3D reconstruction, abstraction

Abstract. Multi-view stereo has been shown to be a viable tool for the creation of realistic 3D city models. Nevertheless, it still states significant challenges since it results in dense, but noisy and incomplete point clouds when applied to aerial images. 3D city modelling usually requires a different representation of the 3D scene than these point clouds. This paper applies a fully-automatic pipeline to generate a simplified mesh from a given dense point cloud. The mesh provides a certain level of abstraction as it only consists of relatively large planar and textured surfaces. Thus, it is possible to remove noise, outlier, as well as clutter, while maintaining a high level of accuracy.