The Impact of the Number of k-Means Clusters on 3D Point Cloud Registration

Peter Ankomah, Peter Vangorp

Research output: Contribution to conferencePaperAcademic

Abstract

Point cloud registration plays a crucial role in many applications, from robotics and autonomous navigation to
medical imaging and 3D scene reconstruction. While the Iterative Closest Point (ICP) algorithm is a well-known
shape registration choice, its efficiency and accuracy can be affected by the vast search space for point correspondences. k-means clustering emerges as a promising solution for partitioning the search space into smaller clusters
to reduce the computational complexity and increase the performance of the matching. However, the number and
size of these clusters and how they affect the registration remains a critical and yet not fully explored factor. This
paper delves into the relationship between the number of k-means clusters and point cloud registration accuracy.
To determine the effect of the number of k-means clusters on registration accuracy and efficiency and to understand
any emerging pattern, k-meansICP is developed to use the k-means algorithm to cluster the correspondence search
space. Two sets of 3D molecular shapes with differing complexities are matched using initial rotation angles 15,
30, and 60 degrees with 2 to 10 k-means clusters. The results are then compared with the original ICP algorithm.
Original languageEnglish
Pages3-12
Number of pages10
DOIs
Publication statusPublished - 4 Jun 2024
EventInternational Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2024 - Primavera Hotel & Congress Center, Pilsen, Czech Republic
Duration: 3 Jun 20246 Jun 2024
Conference number: 32

Conference

ConferenceInternational Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2024
Abbreviated titleWSCG 2024
Country/TerritoryCzech Republic
CityPilsen
Period3/06/246/06/24

Keywords

  • 3D Point Cloud
  • 3D Shape Registration
  • Iterative Closest Point
  • k-Means Clustering

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