Abstract
We consider three-dimensional (3D) localization and imaging of space debris from only one two-dimensional (2D) snapshot image. The technique involves an optical imager that exploits off-center image rotation to encode both the lateral and depth coordinates of point sources, with the latter being encoded in the angle of rotation of the PSF. We formulate 3D localization into a large-scale sparse 3D inverse problem in discretized form. A recently developed penalty called continuous exact ℓ0 (CEL0) is applied in this problem for the Gaussian noise model. Numerical experiments and comparisons illustrate the efficiency of the algorithm.
| Original language | English |
|---|---|
| Title of host publication | Mathematical Methods in Image Processing and Inverse Problems |
| Subtitle of host publication | IPIP 2018, Beijing, China, April 21–24 |
| Editors | Xue-Cheng Tai, Suhua Wei, Haiguang Liu |
| Place of Publication | Singapore |
| Publisher | Springer |
| Pages | 1-12 |
| ISBN (Electronic) | 978-981-16-2701-9 |
| ISBN (Print) | 978-981-16-2700-2 |
| DOIs | |
| Publication status | Published - 2021 |
| Externally published | Yes |
| Event | International Workshop on Image Processing and Inverse Problems (IPIP 2018) - Beijing Computational Science Research Center, Beijing, China Duration: 21 Apr 2018 → 24 Apr 2018 https://www.csrc.ac.cn/en/event/workshop/2017-12-27/78.html |
Publication series
| Name | Springer Proceedings in Mathematics & Statistics |
|---|---|
| Volume | 360 |
| ISSN (Print) | 2194-1009 |
| ISSN (Electronic) | 2194-1017 |
Conference
| Conference | International Workshop on Image Processing and Inverse Problems (IPIP 2018) |
|---|---|
| Place | China |
| City | Beijing |
| Period | 21/04/18 → 24/04/18 |
| Internet address |
Research Keywords
- 3D localization
- Nonconvex optimization algorithms
- Point spread function
- Space debris
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