ABD-Net: Attention Based Decomposition Network for 3D Point Cloud Decomposition
Siddharth Katageri, Shashidhar Kudari, Akshay Gunari, Ramesh Tabib, Uma Mudengudi
Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops, 2021
[Abstract] [Paper] [Video]

In this work, we propose ABD-Net, for point cloud decomposition into basic geometric shapes namely, plane, sphere, cone, and cylinder. We show improved performance of 3D object classification using attention features based on primitive shapes in point clouds. ABD-Net captures local geometric variations along with spatial encoding and further models geometric relationships between the neighborhoods of all the points resulting in capturing global point cloud information.

PointDCCNet: 3D Object Categorization Network using Point Cloud Decomposition
Siddharth Katageri, Sameer Kulmi, Ramesh Tabib, Uma Mudengudi
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) Workshops, 2021
[Abstract] [Paper]

In this paper, we propose PointDCCNet for 3D object categorization using point cloud decomposition. The decomposition of point clouds provides a geometric signature of the 3D object used towards modelling a classifier, which shows improved performance on 3D categorization task.