VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Ground and building extraction from LiDAR data based on differential morphological profiles and locally fitted surfaces
    Mongus, Domen ; Lukač, Niko ; Žalik, Borut
    This paper proposes a new framework for ground extraction and building detection in LiDAR data. The proposed approach constructs the connectivity of a grid over the LiDAR point-cloud in order to ... perform multi-scale data decomposition. This is realised by forming a top-hat scale-space using differential morphological profiles (DMPs) on pointsʼ residuals from the approximated surface. The geometric attributes of the contained features are estimated by mapping characteristic values from DMPs. Ground definition is achieved by using featuresʼ geometry, whilst their surface and regional attributes are additionally considered for building detection. A new algorithmfor local fitting surfaces (LoFS) is proposed for extracting planar points. Finally, transitions between planar ground and non-ground regions are observed in order to separate regions of similar geometrical and surface properties but different contexts (i.e. bridges and buildings). The methods were evaluated using ISPRS benchmark datasets and show superior results in comparison to the current state-of-the-art.
    Vir: ISPRS journal of photogrammetry and remote sensing : official publication of the International Society for Photogrammetry and Remote Sensing. - ISSN 0924-2716 (Vol. 93, July 2014, str. 145-156)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2014
    Jezik - angleški
    COBISS.SI-ID - 17466134
    DOI

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