| Residential College | false |
| Status | 已發表Published |
| A Computation-Aware Shape Loss Function for Point Cloud Completion | |
Zhang, Shunran1,2; Zhang, Xiubo1; Chan, Tsz Nam3; Zhang, Shenghui1; Leong Hou, U.1 
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| 2024-03-25 | |
| Source Publication | Proceedings of the AAAI Conference on Artificial Intelligence
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| Volume | 38 |
| Issue | 7 |
| Pages | 7287-7295 |
| Abstract | Learning-based point cloud completion tasks have shown potential in various critical tasks, such as object detection, classification, and registration. However, accurately and efficiently quantifying the shape error between the predicted point clouds generated by networks and the ground truth remains challenging. While EMD-based loss functions excel in shape detail and perceived density distribution, their approach can only yield results with significant discrepancies from the actual EMD within a tolerable training time. To address these challenges, we first propose an initial price based on an auction algorithm, reducing the number of iterations required for the algorithm while ensuring the correctness of the assignment results. We then introduce a method to compute the initial price through a successive shortest path and the Euclidean information between its nodes. Finally, we adopt a series of optimization strategies to speed up the algorithm and offer an EMD approximation scheme for point cloud problems that balances time loss and computational accuracy based on point cloud data characteristics. Our experimental results confirm that our algorithm achieves the smallest gap with the real EMD within an acceptable time range and yields the best results in end-to-end training. |
| DOI | 10.1609/aaai.v38i7.28558 |
| URL | View the original |
| Language | 英語English |
| Scopus ID | 2-s2.0-85189557316 |
| Fulltext Access | |
| Citation statistics | |
| Document Type | Conference paper |
| Collection | Faculty of Science and Technology |
| Corresponding Author | Leong Hou, U. |
| Affiliation | 1.University of Macau, Macao 2.Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China 3.Shenzhen University, China |
| First Author Affilication | University of Macau |
| Corresponding Author Affilication | University of Macau |
| Recommended Citation GB/T 7714 | Zhang, Shunran,Zhang, Xiubo,Chan, Tsz Nam,et al. A Computation-Aware Shape Loss Function for Point Cloud Completion[C], 2024, 7287-7295. |
| APA | Zhang, Shunran., Zhang, Xiubo., Chan, Tsz Nam., Zhang, Shenghui., & Leong Hou, U. (2024). A Computation-Aware Shape Loss Function for Point Cloud Completion. Proceedings of the AAAI Conference on Artificial Intelligence, 38(7), 7287-7295. |
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