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Point Spread Function Engineering for 3D Imaging of Space Debris Using a Continuous Exact ℓ0 Penalty (CEL0) Based Algorithm

  • Chao Wang*
  • , Raymond H. Chan
  • , Robert J. Plemmons
  • , Sudhakar Prasad
  • *Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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 languageEnglish
Title of host publicationMathematical Methods in Image Processing and Inverse Problems
Subtitle of host publicationIPIP 2018, Beijing, China, April 21–24
EditorsXue-Cheng Tai, Suhua Wei, Haiguang Liu
Place of PublicationSingapore
PublisherSpringer 
Pages1-12
ISBN (Electronic)978-981-16-2701-9
ISBN (Print)978-981-16-2700-2
DOIs
Publication statusPublished - 2021
Externally publishedYes
EventInternational Workshop on Image Processing and Inverse Problems (IPIP 2018) - Beijing Computational Science Research Center, Beijing, China
Duration: 21 Apr 201824 Apr 2018
https://www.csrc.ac.cn/en/event/workshop/2017-12-27/78.html

Publication series

NameSpringer Proceedings in Mathematics & Statistics
Volume360
ISSN (Print)2194-1009
ISSN (Electronic)2194-1017

Conference

ConferenceInternational Workshop on Image Processing and Inverse Problems (IPIP 2018)
PlaceChina
CityBeijing
Period21/04/1824/04/18
Internet address

Research Keywords

  • 3D localization
  • Nonconvex optimization algorithms
  • Point spread function
  • Space debris

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