Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation
This work describes a novel approach to localize sub-pixel chessboard corners for camera calibration and pose estimation. An ideally continuous chessboard corner model is established, as a function of corner coordinates, rotation and shear angles, gain and offset of grayscale, and blurring strength....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-11-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/8/11/2118 |
| _version_ | 1819013622579331072 |
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| author | Tianlong Yang Qiancheng Zhao Xian Wang Quan Zhou |
| author_facet | Tianlong Yang Qiancheng Zhao Xian Wang Quan Zhou |
| author_sort | Tianlong Yang |
| collection | DOAJ |
| description | This work describes a novel approach to localize sub-pixel chessboard corners for camera calibration and pose estimation. An ideally continuous chessboard corner model is established, as a function of corner coordinates, rotation and shear angles, gain and offset of grayscale, and blurring strength. The ideal model is evaluated by a low-cost and high-similarity approximation for sub-pixel localization, and by performing a nonlinear fit to input image. A self-checking technique is also proposed by investigating qualities of the model fits, for ensuring the reliability of addressing perspective-n-point problem. The proposed method is verified by experiments, and results show that it can share a high performance. It is also implemented and examined in a common vision system, which demonstrates that it is suitable for on-site use. |
| first_indexed | 2024-12-21T02:02:53Z |
| format | Article |
| id | doaj.art-bdabd3f7cd454e48bf6aa06e54698c20 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-21T02:02:53Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-bdabd3f7cd454e48bf6aa06e54698c202022-12-21T19:19:36ZengMDPI AGApplied Sciences2076-34172018-11-01811211810.3390/app8112118app8112118Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose EstimationTianlong Yang0Qiancheng Zhao1Xian Wang2Quan Zhou3College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Taoyuan Rd, Xiangtan 411201, ChinaCollege of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Taoyuan Rd, Xiangtan 411201, ChinaCollege of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Taoyuan Rd, Xiangtan 411201, ChinaCollege of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Taoyuan Rd, Xiangtan 411201, ChinaThis work describes a novel approach to localize sub-pixel chessboard corners for camera calibration and pose estimation. An ideally continuous chessboard corner model is established, as a function of corner coordinates, rotation and shear angles, gain and offset of grayscale, and blurring strength. The ideal model is evaluated by a low-cost and high-similarity approximation for sub-pixel localization, and by performing a nonlinear fit to input image. A self-checking technique is also proposed by investigating qualities of the model fits, for ensuring the reliability of addressing perspective-n-point problem. The proposed method is verified by experiments, and results show that it can share a high performance. It is also implemented and examined in a common vision system, which demonstrates that it is suitable for on-site use.https://www.mdpi.com/2076-3417/8/11/2118chessboard cornercamera calibrationpose estimationsub-pixel localization |
| spellingShingle | Tianlong Yang Qiancheng Zhao Xian Wang Quan Zhou Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation Applied Sciences chessboard corner camera calibration pose estimation sub-pixel localization |
| title | Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation |
| title_full | Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation |
| title_fullStr | Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation |
| title_full_unstemmed | Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation |
| title_short | Sub-Pixel Chessboard Corner Localization for Camera Calibration and Pose Estimation |
| title_sort | sub pixel chessboard corner localization for camera calibration and pose estimation |
| topic | chessboard corner camera calibration pose estimation sub-pixel localization |
| url | https://www.mdpi.com/2076-3417/8/11/2118 |
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