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 |
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Title of host publication | Mathematical Methods in Image Processing and Inverse Problems, IPIP 2018 |
Editors | Xue-Cheng TAI, Suhua WEI, Haiguang LIU |
Publisher | Springer |
Pages | 1-12 |
Number of pages | 12 |
ISBN (Electronic) | 9789811627019 |
ISBN (Print) | 9789811627002 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Event | International Workshop on Image Processing and Inverse Problems, IPIP 2018 - Beijing, China Duration: 21 Apr 2018 → 24 Apr 2018 |
Publication series
Name | Springer Proceedings in Mathematics and Statistics |
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Volume | 360 |
ISSN (Print) | 2194-1009 |
ISSN (Electronic) | 2194-1017 |
Conference
Conference | International Workshop on Image Processing and Inverse Problems, IPIP 2018 |
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Country/Territory | China |
City | Beijing |
Period | 21/04/18 → 24/04/18 |
Bibliographical note
Publisher Copyright:© 2021, Springer Nature Singapore Pte Ltd.
Funding
The research of the first, third and fourth authors was supported by the US Air Force Office of Scientific Research under grant FA9550-15-1-0286. The work of the second author was supported by HKRGC Grant CUHK14306316, HKRGC Grant CUHK14301718, HKRGC CRF Grant C1007-15G, HKRGC AoE Grant AoE/M-05/12, CUHK DAG No. 4053211, and CUHK FIS Grant No. 1907303. The work of the third author was also supported by HKRGC Grant CUHK14306316.
Keywords
- 3D localization
- Nonconvex optimization algorithms
- Point spread function
- Space debris