Structural Wall Facade Reconstruction of Scanned Scene in Point Clouds
Representation of wall facade in 3D scene is important for scene understanding and reconstruction. Doors and windows are essential elements of wall facade, which enrich the models of indoor buildings. In order to reconstruct the wall facade with detailed wall opening (doors and windows) informatio...
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| Main Authors: | , , , , |
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| Format: | article |
| Language: | EN |
| Published: |
Stefan cel Mare University of Suceava
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/88a588d1fd62483aaa547114be8e743c |
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| Summary: | Representation of wall facade in 3D scene is important for scene understanding and reconstruction.
Doors and windows are essential elements of wall facade, which enrich the models of indoor buildings.
In order to reconstruct the wall facade with detailed wall opening (doors and windows) information
from point cloud, an improved automatic reconstruction approach is proposed in this paper. Specifically,
we first detect the occlusion area on the wall by ray-tracing method. Then, the interested wall facade
is segmented from scenes, and the contour and feature lines of the wall surface are extracted through
the analysis of spatial occupancy. Third, the wall point cloud is transformed into a 2D cell complex.
The wall surface is finally reconstructed through the wall opening identification based on graph cut.
Experimental results demonstrate that our method has better performance in detail description, feature
line extraction and opening area detection of the scene point cloud than existing state-of-the-art methods. |
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