A Minimal Solution for Image-Based Sphere Estimation
CC BY
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
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Springer
2023
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| Truy cập trực tuyến: | https://link.springer.com/article/10.1007/s11263-023-01766-1 https://dlib.phenikaa-uni.edu.vn/handle/PNK/8244 |
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oai:localhost:PNK-82442023-04-24T06:55:26Z A Minimal Solution for Image-Based Sphere Estimation Tekla, Tóth Levente, Hajder Image-Based Sphere Estimation CC BY We propose a novel minimal solver for sphere fitting via its 2D central projection, i.e., a special ellipse. The input of the presented algorithm consists of contour points detected in a camera image. General ellipse fitting problems require five contour points. However, taking advantage of the isotropic spherical target, three points are enough to define the tangent cone parameters of the sphere. This yields the sought ellipse parameters. Similarly, the sphere center can be estimated from the cone if the radius is known. These proposed geometric methods are rapid, numerically stable, and easy to implement. Experimental results—on synthetic, photorealistic, and real images—showcase the superiority of the proposed solutions to the state-of-the-art methods. A real-world LiDAR-camera calibration application justifies the utility of the sphere-based approach resulting in an error below a few centimeters. 2023-04-24T06:55:26Z 2023-04-24T06:55:26Z 2023 Book https://link.springer.com/article/10.1007/s11263-023-01766-1 https://dlib.phenikaa-uni.edu.vn/handle/PNK/8244 en application/pdf Springer |
| institution |
Digital Phenikaa |
| collection |
Digital Phenikaa |
| language |
English |
| topic |
Image-Based Sphere Estimation |
| spellingShingle |
Image-Based Sphere Estimation Tekla, Tóth Levente, Hajder A Minimal Solution for Image-Based Sphere Estimation |
| description |
CC BY |
| format |
Book |
| author |
Tekla, Tóth Levente, Hajder |
| author_facet |
Tekla, Tóth Levente, Hajder |
| author_sort |
Tekla, Tóth |
| title |
A Minimal Solution for Image-Based Sphere Estimation |
| title_short |
A Minimal Solution for Image-Based Sphere Estimation |
| title_full |
A Minimal Solution for Image-Based Sphere Estimation |
| title_fullStr |
A Minimal Solution for Image-Based Sphere Estimation |
| title_full_unstemmed |
A Minimal Solution for Image-Based Sphere Estimation |
| title_sort |
minimal solution for image-based sphere estimation |
| publisher |
Springer |
| publishDate |
2023 |
| url |
https://link.springer.com/article/10.1007/s11263-023-01766-1 https://dlib.phenikaa-uni.edu.vn/handle/PNK/8244 |
| _version_ |
1764086839456563200 |
| score |
8.891145 |