A Systematic Survey on Deep Learning Architectures for Point Cloud Classification and Segmentation
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866909051962523648 |
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| author | Kamal, Minhas Kumar, Hiranya Garbha Prabhakaran, Balakrishnan |
| author_facet | Kamal, Minhas Kumar, Hiranya Garbha Prabhakaran, Balakrishnan |
| contents | Point cloud stands as the most widely adopted format for representing 3D shapes and scenes due to its simplicity and geometric fidelity. However, its inherent unordered and irregular nature, exacerbated by sensor noise and occlusions, introduces unique challenges for machine learning based methodologies. To combat these issues, diverse strategies have been developed, including converting to a format that has orderliness, extracting local geometry, and permutation-invariant or self-attention-based processing. In this paper, our focus is directed towards deep learning models for three fundamental tasks in 3D vision: point cloud classification, part segmentation, and semantic segmentation. We begin by formally defining point cloud data, followed by an in-depth discussion on its structural characteristics. Then, we categorize notable works based on their backbone structure and evaluate their performance on popular benchmarks. Beyond empirical comparison, we offer insights into architectural innovations and limitations. We also outline open challenges and promising future directions for 3D point cloud understanding. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_17131 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A Systematic Survey on Deep Learning Architectures for Point Cloud Classification and Segmentation Kamal, Minhas Kumar, Hiranya Garbha Prabhakaran, Balakrishnan Computer Vision and Pattern Recognition Artificial Intelligence Machine Learning Point cloud stands as the most widely adopted format for representing 3D shapes and scenes due to its simplicity and geometric fidelity. However, its inherent unordered and irregular nature, exacerbated by sensor noise and occlusions, introduces unique challenges for machine learning based methodologies. To combat these issues, diverse strategies have been developed, including converting to a format that has orderliness, extracting local geometry, and permutation-invariant or self-attention-based processing. In this paper, our focus is directed towards deep learning models for three fundamental tasks in 3D vision: point cloud classification, part segmentation, and semantic segmentation. We begin by formally defining point cloud data, followed by an in-depth discussion on its structural characteristics. Then, we categorize notable works based on their backbone structure and evaluate their performance on popular benchmarks. Beyond empirical comparison, we offer insights into architectural innovations and limitations. We also outline open challenges and promising future directions for 3D point cloud understanding. |
| title | A Systematic Survey on Deep Learning Architectures for Point Cloud Classification and Segmentation |
| topic | Computer Vision and Pattern Recognition Artificial Intelligence Machine Learning |
| url | https://arxiv.org/abs/2605.17131 |