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  • Segmentation of Airborne Point Cloud Data for Automatic Building Roof Extraction

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    GilaniPUB2203.pdf (5.847Mb)
    Author(s)
    Gilani, Syed Ali Naqi
    Awrangjeb, Mohammad
    Lu, Guojun
    Griffith University Author(s)
    Awrangjeb, Mohammad
    Year published
    2018
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    Abstract
    Roof plane segmentation is a complex task since point cloud data carry no connection information and do not provide any semantic characteristics of the underlying scanned surfaces. Point cloud density, complex roof profiles, and occlusion add another layer of complexity which often encounter in practice. In this article, we present a new technique that provides a better interpolation of roof regions where multiple surfaces intersect creating non-manifold points. As a result, these geometric features are preserved to achieve automated identification and segmentation of the roof planes from unstructured laser data. The proposed ...
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    Roof plane segmentation is a complex task since point cloud data carry no connection information and do not provide any semantic characteristics of the underlying scanned surfaces. Point cloud density, complex roof profiles, and occlusion add another layer of complexity which often encounter in practice. In this article, we present a new technique that provides a better interpolation of roof regions where multiple surfaces intersect creating non-manifold points. As a result, these geometric features are preserved to achieve automated identification and segmentation of the roof planes from unstructured laser data. The proposed technique has been tested using the International Society for Photogrammetry and Remote Sensing benchmark and three Australian datasets, which differ in terrain, point density, building sizes, and vegetation. The qualitative and quantitative results show the robustness of the methodology and indicate that the proposed technique can eliminate vegetation and extract buildings as well as their non-occluding parts from the complex scenes at a high success rate for building detection (between 83.9% and 100% per-object completeness) and roof plane extraction (between 73.9% and 96% per-object completeness). The proposed method works more robustly than some existing methods in the presence of occlusion and low point sampling as indicated by the correctness of above 95% for all the datasets.
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    Journal Title
    GIScience & Remote Sensing
    DOI
    https://doi.org/10.1080/15481603.2017.1361509
    Copyright Statement
    © 2017 Taylor & Francis (Routledge). This is an Accepted Manuscript of an article published by Taylor & Francis in GIScience & Remote Sensing on 09 Aug 2017, available online: http://www.tandfonline.com/10.1080/15481603.2017.1361509
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Image Processing
    Computer Vision
    Photogrammetry and Remote Sensing
    Physical Geography and Environmental Geoscience
    Environmental Science and Management
    Geomatic Engineering
    Publication URI
    http://hdl.handle.net/10072/344951
    Collection
    • Journal articles

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