Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions
The issue of achieving an appropriate segmentation for indoor point cloud scenes remains difficult. Although available methods continue to improve the benchmark performance, more attentions need to be paid to deal with the drawbacks of inaccurate or incomplete segments in division. To push the resea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8918261/ |
| _version_ | 1818875920573792256 |
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| author | Nan Luo Quan Wang Qi Wei Chuan Jing |
| author_facet | Nan Luo Quan Wang Qi Wei Chuan Jing |
| author_sort | Nan Luo |
| collection | DOAJ |
| description | The issue of achieving an appropriate segmentation for indoor point cloud scenes remains difficult. Although available methods continue to improve the benchmark performance, more attentions need to be paid to deal with the drawbacks of inaccurate or incomplete segments in division. To push the research to the next level, this work proposes an learning-free algorithm for the segmentation of indoor point clouds which consists of two stages. The first stage extracts edges of RGBD point clouds and applies them in the voxel clustering process to avoid generating supervoxels which are situated across object boundaries. After this pre-segmentation, a two-phase merging procedure is presented in the second part. By conducting region growing on optimized supervoxels, a set of local regions is obtained. Then we propose to define the convexity-concavity of adjacent regions based on the observations of object structures and merge the convexly connected regions to achieve object-level segmentation. This algorithm is straightforward to implement and requires no training data. Experimental results show that it produces supervoxels with plausible boundaries and arrives at better object-level segmentation. |
| first_indexed | 2024-12-19T13:34:10Z |
| format | Article |
| id | doaj.art-7c95b14101984a85ba75ffffa9685c4f |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T13:34:10Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-7c95b14101984a85ba75ffffa9685c4f2022-12-21T20:19:16ZengIEEEIEEE Access2169-35362019-01-01717193417194910.1109/ACCESS.2019.29570348918261Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object RegionsNan Luo0https://orcid.org/0000-0002-9619-9880Quan Wang1Qi Wei2Chuan Jing3School of Computer Science and Technology, Xidian University, Xi’an, ChinaSchool of Computer Science and Technology, Xidian University, Xi’an, ChinaSchool of Computer Science and Technology, Xidian University, Xi’an, ChinaSchool of Computer Science and Technology, Xidian University, Xi’an, ChinaThe issue of achieving an appropriate segmentation for indoor point cloud scenes remains difficult. Although available methods continue to improve the benchmark performance, more attentions need to be paid to deal with the drawbacks of inaccurate or incomplete segments in division. To push the research to the next level, this work proposes an learning-free algorithm for the segmentation of indoor point clouds which consists of two stages. The first stage extracts edges of RGBD point clouds and applies them in the voxel clustering process to avoid generating supervoxels which are situated across object boundaries. After this pre-segmentation, a two-phase merging procedure is presented in the second part. By conducting region growing on optimized supervoxels, a set of local regions is obtained. Then we propose to define the convexity-concavity of adjacent regions based on the observations of object structures and merge the convexly connected regions to achieve object-level segmentation. This algorithm is straightforward to implement and requires no training data. Experimental results show that it produces supervoxels with plausible boundaries and arrives at better object-level segmentation.https://ieeexplore.ieee.org/document/8918261/Object segmentationsupervoxelsindoor point cloudsconvexity-concavitymerging of adjacent regions |
| spellingShingle | Nan Luo Quan Wang Qi Wei Chuan Jing Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions IEEE Access Object segmentation supervoxels indoor point clouds convexity-concavity merging of adjacent regions |
| title | Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions |
| title_full | Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions |
| title_fullStr | Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions |
| title_full_unstemmed | Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions |
| title_short | Object-Level Segmentation of Indoor Point Clouds by the Convexity of Adjacent Object Regions |
| title_sort | object level segmentation of indoor point clouds by the convexity of adjacent object regions |
| topic | Object segmentation supervoxels indoor point clouds convexity-concavity merging of adjacent regions |
| url | https://ieeexplore.ieee.org/document/8918261/ |
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