High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh
Lunar global mapping products provide a solid data foundation for lunar scientific research and exploration. As the widespread geometric inconsistencies among multi-source mapping products seriously affect the synergistic use of the products, high-precision registration of multiple lunar global prod...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-03-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/14/6/1442 |
| _version_ | 1827625905943478272 |
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| author | Zheng Bo Kaichang Di Bin Liu Jia Wang Zhaoqin Liu Xin Xin Ziqing Cheng Jinkuan Yin |
| author_facet | Zheng Bo Kaichang Di Bin Liu Jia Wang Zhaoqin Liu Xin Xin Ziqing Cheng Jinkuan Yin |
| author_sort | Zheng Bo |
| collection | DOAJ |
| description | Lunar global mapping products provide a solid data foundation for lunar scientific research and exploration. As the widespread geometric inconsistencies among multi-source mapping products seriously affect the synergistic use of the products, high-precision registration of multiple lunar global products is critical, and it is highly challenging due to large coverage and complex local geometric inconsistencies. In this research, we propose a spherical triangular-mesh-based method for high-precision registration of lunar global mapping products, which involves four steps: data preprocessing, feature point extraction and matching, spherical Delaunay triangulation, and geometric correction with spherical barycentric coordinates. This global registration method avoids map projection distortions by using spherical coordinates directly, and achieves high precision by confining the geometric models to spherical triangular facets. Experiments are conducted using two groups of different types of mapping products to verify the proposed method quantitatively and qualitatively. The results show that the geometric inconsistencies are reduced from hundreds of pixels to sub-pixel level globally after the registration, demonstrating the effectiveness of the proposed method. |
| first_indexed | 2024-03-09T12:45:15Z |
| format | Article |
| id | doaj.art-c8d31c38f7dd4b8b9b56ca30b8f4f35e |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T12:45:15Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-c8d31c38f7dd4b8b9b56ca30b8f4f35e2023-11-30T22:13:01ZengMDPI AGRemote Sensing2072-42922022-03-01146144210.3390/rs14061442High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular MeshZheng Bo0Kaichang Di1Bin Liu2Jia Wang3Zhaoqin Liu4Xin Xin5Ziqing Cheng6Jinkuan Yin7State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaBeijing Aerospace Control Center, Beijing 100094, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaState Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, ChinaBeijing Aerospace Control Center, Beijing 100094, ChinaBeijing Yingce Spatial Info Tech Limited Company, Beijing 100043, ChinaLunar global mapping products provide a solid data foundation for lunar scientific research and exploration. As the widespread geometric inconsistencies among multi-source mapping products seriously affect the synergistic use of the products, high-precision registration of multiple lunar global products is critical, and it is highly challenging due to large coverage and complex local geometric inconsistencies. In this research, we propose a spherical triangular-mesh-based method for high-precision registration of lunar global mapping products, which involves four steps: data preprocessing, feature point extraction and matching, spherical Delaunay triangulation, and geometric correction with spherical barycentric coordinates. This global registration method avoids map projection distortions by using spherical coordinates directly, and achieves high precision by confining the geometric models to spherical triangular facets. Experiments are conducted using two groups of different types of mapping products to verify the proposed method quantitatively and qualitatively. The results show that the geometric inconsistencies are reduced from hundreds of pixels to sub-pixel level globally after the registration, demonstrating the effectiveness of the proposed method.https://www.mdpi.com/2072-4292/14/6/1442lunar global mapping productsregistrationspherical triangular meshspherical barycentric coordinates |
| spellingShingle | Zheng Bo Kaichang Di Bin Liu Jia Wang Zhaoqin Liu Xin Xin Ziqing Cheng Jinkuan Yin High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh Remote Sensing lunar global mapping products registration spherical triangular mesh spherical barycentric coordinates |
| title | High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh |
| title_full | High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh |
| title_fullStr | High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh |
| title_full_unstemmed | High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh |
| title_short | High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh |
| title_sort | high precision registration of lunar global mapping products based on spherical triangular mesh |
| topic | lunar global mapping products registration spherical triangular mesh spherical barycentric coordinates |
| url | https://www.mdpi.com/2072-4292/14/6/1442 |
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