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.
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 language | English |
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Pages | 3-12 |
Number of pages | 10 |
DOIs | |
Publication status | Published - 4 Jun 2024 |
Event | International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2024 - Primavera Hotel & Congress Center, Pilsen, Czech Republic Duration: 3 Jun 2024 → 6 Jun 2024 Conference number: 32 |
Conference
Conference | International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2024 |
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Abbreviated title | WSCG 2024 |
Country/Territory | Czech Republic |
City | Pilsen |
Period | 3/06/24 → 6/06/24 |
Keywords
- 3D Point Cloud
- 3D Shape Registration
- Iterative Closest Point
- k-Means Clustering