Eurographics 2015 – Efficient RANSAC for n-gonal Primitive Fitting

Ahsan Abdullah, Reema Bajwa, Syed Rizwan Gilani, Zuha Agha, Saeed Boor Boor, Murtaza Taj, Sohaib Ahmed Khan
The 36th Annual Conference of the European Association for Computer Graphics, 2015
Kongresshaus in Zürich, Switzerland, 4th – 8th May, 2015

Abstract

We present a modeling approach to automatically fit 3D primitives to point clouds in order to generate a CAD like model. For detailed modeling we propose a new n-gonal 3D primitive and a novel RANSAC based fitting approach. Non-planar surfaces are modeled through surface of revolution with B-spline profiles. We first reduce the dimension by projecting the 3D data onto a 2D plane. Primitive fitting algorithm is then applied in this 2D space. Our approach compares favorably both with manually and automatically generated models. Not only is it much more time efficient than manual modeling, but it also gives significantly better output than state-of-the-art automatic methods. Since the focal technique of our approach is the fitting of detailed primitives, our results are ideal in the domain of architecture and preservation of heritage.

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Text Reference:

Ahsan Abdullah, Reema Bajwa, Syed Rizwan Gilani, Zuha Agha, Saeed Boor Boor, Murtaza Taj, Sohaib Ahmed Khan, 
"3D Architectural Modeling: Efficient RANSAC for n-gonal Primitive Fitting", in Proceedings of the 36th Annual Conference of the European Association for Computer Graphics, Eurographics, May 2015 (short paper)

Bibtex Reference:

@inproceedings{NGonGFittingEurographics2015,
   author   = "Ahsan Abdullah and
               Reema Bajwa and
               Syed Rizwan Gilani and
               Zuha Agha and
               Saeed Boor Boor and
               Murtaza Taj and
               Sohaib Ahmed Khan",
   title     = "3{D} Architectural Modeling: Efficient {RANSAC} for n-gonal Primitive Fitting",
   booktitle = "Proceedings of the 36th Annual Conference of the European Association for Computer Graphics",
   month     = "May",
   year      = "2015",
}