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Some performance evaluation systems for building extraction techniques are manual in the sense that only visual results are provided or human judgment is employed. Many evaluation systems that employ one or more thresholds to ascertain whether an extracted building or roof plane is correct are subjective and cannot be applied in general. There are only a small number of automatic and threshold-free...
Automatic 3D extraction of building roofs from remotely sensed data is important for many applications including city modeling. This paper proposes a new method for automatic 3D roof extraction through an effective integration of LIDAR (Light Detection And Ranging) data and multispectral orthoimagery. Using the ground height from a DEM (Digital Elevation Model), the raw LIDAR points are separated...
Automatic 3D reconstruction of building roofs from remotely sensed data is important for many applications including automatic city modeling. This paper proposes a new method for automatic roof reconstruction using LIDAR (Light Detection And Ranging) data and multispectral imagery. Using the ground height from a DEM (Digital Elevation Model), the raw LIDAR points are separated into two groups. The...
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