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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Qieshi Cheng, Jun Wang, Shengwen Xu, Chengjun Gao, Xiangyang |
| Abstract | Recent years, the research on object classification based on three-dimensional (3D) point cloud pays more attention to extract the features from point sets directly. PointNet++ is the latest network structure for 3D classification which has achieved acceptable results. Although it has achieved acceptable results, there are still two problems: (i) The farthest point sampling (FPS) algorithm in PointNet++ ignores the fact that the feature of each point contributes differently to the classification and segmentation tasks. Therefore, FPS cannot guarantee that the selected point sets can correctly represent the main features of the object. (ii) The multi-scale grouping and multi-resolution grouping in PointNet++ do not consider the features between different levels of the same point. In order to solve these problems, the authors propose the point-selection structure which can calculate the importance of each point's feature. In addition, multi-level-point-feature fusion module is proposed to extract the features of the point at all levels and fuse them as a new feature of that point. In this Letter, they make some experiments on ModelNet40 and ScanNet datasets, which achieves better results compared to the state-of-the-art methods. |
| Starting Page | 290 |
| Ending Page | 293 |
| Page Count | 4 |
| ISSN | 00135194 |
| Volume Number | 56 |
| e-ISSN | 1350911X |
| Issue Number | Issue 6, Mar (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2019.2856 |
| Journal | Electronics Letters |
| Publisher Date | 2020-01-17 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Computer Vision And Image Processing Technique Farthest Point Sampling Algorithm Feature Extraction Graphics Technique Image Classification Image Fusion Image Recognition Image Representation Image Segmentation ModelNet40 Datasets Multilevel-point-feature Fusion Module Multilevel-point-feature Fusion-based 3D Point Cloud Classification Multiresolution Grouping Multiscale Grouping Object Classification Point-selection Structure PointNet++ ScanNet Datasets Segmentation Task Sensor Fusion Solid Modelling Three-dimensional Point Cloud |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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