FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model
Fisheye images with a far larger Field of View (FOV) have severe radial distortion, with the result that the associated image feature matching process cannot achieve the best performance if the traditional feature descriptors are used. To address this challenge, this paper reports a novel distorted...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/5/1839 |
| _version_ | 1797413101610467328 |
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| author | Yutong Zhang Jianmei Song Yan Ding Yating Yuan Hua-Liang Wei |
| author_facet | Yutong Zhang Jianmei Song Yan Ding Yating Yuan Hua-Liang Wei |
| author_sort | Yutong Zhang |
| collection | DOAJ |
| description | Fisheye images with a far larger Field of View (FOV) have severe radial distortion, with the result that the associated image feature matching process cannot achieve the best performance if the traditional feature descriptors are used. To address this challenge, this paper reports a novel distorted Binary Robust Independent Elementary Feature (BRIEF) descriptor for fisheye images based on a spherical perspective model. Firstly, the 3D gray centroid of feature points is designed, and the position and direction of the feature points on the spherical image are described by a constructed feature point attitude matrix. Then, based on the attitude matrix of feature points, the coordinate mapping relationship between the BRIEF descriptor template and the fisheye image is established to realize the computation associated with the distorted BRIEF descriptor. Four experiments are provided to test and verify the invariance and matching performance of the proposed descriptor for a fisheye image. The experimental results show that the proposed descriptor works well for distortion invariance and can significantly improve the matching performance in fisheye images. |
| first_indexed | 2024-03-09T05:12:42Z |
| format | Article |
| id | doaj.art-1fea1dc795e4474595dbc2fa76d93fdc |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T05:12:42Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1fea1dc795e4474595dbc2fa76d93fdc2023-12-03T12:47:47ZengMDPI AGSensors1424-82202021-03-01215183910.3390/s21051839FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective ModelYutong Zhang0Jianmei Song1Yan Ding2Yating Yuan3Hua-Liang Wei4Key Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaKey Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaKey Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaThe Department of Applied Mathematics, The University of Waterloo, Waterloo, ON N2L 3G1, CanadaDepartment of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UKFisheye images with a far larger Field of View (FOV) have severe radial distortion, with the result that the associated image feature matching process cannot achieve the best performance if the traditional feature descriptors are used. To address this challenge, this paper reports a novel distorted Binary Robust Independent Elementary Feature (BRIEF) descriptor for fisheye images based on a spherical perspective model. Firstly, the 3D gray centroid of feature points is designed, and the position and direction of the feature points on the spherical image are described by a constructed feature point attitude matrix. Then, based on the attitude matrix of feature points, the coordinate mapping relationship between the BRIEF descriptor template and the fisheye image is established to realize the computation associated with the distorted BRIEF descriptor. Four experiments are provided to test and verify the invariance and matching performance of the proposed descriptor for a fisheye image. The experimental results show that the proposed descriptor works well for distortion invariance and can significantly improve the matching performance in fisheye images.https://www.mdpi.com/1424-8220/21/5/1839fisheye cameraspherical perspective modeldistorted BRIEF descriptorfeature point attitude matrix |
| spellingShingle | Yutong Zhang Jianmei Song Yan Ding Yating Yuan Hua-Liang Wei FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model Sensors fisheye camera spherical perspective model distorted BRIEF descriptor feature point attitude matrix |
| title | FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model |
| title_full | FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model |
| title_fullStr | FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model |
| title_full_unstemmed | FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model |
| title_short | FSD-BRIEF: A Distorted BRIEF Descriptor for Fisheye Image Based on Spherical Perspective Model |
| title_sort | fsd brief a distorted brief descriptor for fisheye image based on spherical perspective model |
| topic | fisheye camera spherical perspective model distorted BRIEF descriptor feature point attitude matrix |
| url | https://www.mdpi.com/1424-8220/21/5/1839 |
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