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Building large urban environments from unstructured point data

Abstract : We present a robust method for modeling cities from unstructured point data. Our algorithm provides a more complete description than existing approaches by reconstructing simultaneously buildings, trees and topologically complex grounds. Buildings are modeled by an original approach which guarantees a high generalization level while having semantized and compact representations. Geometric 3D-primitives such as planes, cylinders, spheres or cones describe regular roof sections, and are combined with mesh-patches that represent irregular roof components. The various urban components interact through a non-convex energy minimization problem in which they are propagated under arrangement constraints over a planimetric map. We experimentally validate the approach on complex urban structures and large urban scenes of millions of points.
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https://hal.inria.fr/hal-00759269
Contributor : Florent Lafarge <>
Submitted on : Friday, November 30, 2012 - 12:58:46 PM
Last modification on : Wednesday, October 14, 2020 - 4:16:40 AM
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  • HAL Id : hal-00759269, version 1

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Florent Lafarge, Clément Mallet. Building large urban environments from unstructured point data. ICCV, Nov 2011, Barcelona, Spain. ⟨hal-00759269⟩

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