AUTOMATIC BUILDING ABSTRACTION FROM AERIAL PHOTOGRAMMETRY

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 repre...

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Bibliographic Details
Published in:ISPRS annals of the photogrammetry, remote sensing and spatial information sciences remote sensing and spatial information sciences, 2017-09, Vol.IV-2/W4, p.243-250
Main Authors: Ley, A., Hänsch, R., Hellwich, O.
Format: Article
Language:English
Subjects:
Aerial photography
Clutter
Finite element method
Mesh generation
Photogrammetry
Three dimensional models
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Summary: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.
ISSN:2194-9050
2194-9042
2194-9050
DOI:10.5194/isprs-annals-IV-2-W4-243-2017