Abstract
We present a spatio-temporal super-resolution method for reconstructing a sequence of observations collected by imaging satellites. A sequence of observations is assumed to be defined on a low resolution spatio-temporal grid. It is further assumed that the sequence is generated by blurring of a captured scene with a spatio-temporal convolution kernel and is degraded by noise. Our method simultaneously exhibits deconvolution of the sequence of images from the effects of spatio-temporal blur, denoising of the data, and upsampling of the low-resolution sequence to a high resolution spatio-temporal grid. We perform the super-resolution in the space-time domain, as opposed to super-resolving the sequence separately and sequentially to a higher spatial and then temporal resolution grid. Simultaneous space-time optimization achieves a more efficient and more accurate reconstruction than reconstructing a sequence frame by frame. The proposed super-resolution methodology is based on total variation regularization and computes the solution using the alternating direction method of multipliers. Numerical results show our approach to be robust and computationally efficient.
| Original language | English |
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| Title of host publication | IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings |
| Pages | 2907-2910 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781665403696 |
| DOIs | |
| State | Published - 2021 |
| Event | 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: Jul 12 2021 → Jul 16 2021 |
Publication series
| Name | International Geoscience and Remote Sensing Symposium (IGARSS) |
|---|---|
| Volume | 2021-July |
Conference
| Conference | 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 |
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| Country/Territory | Belgium |
| City | Brussels |
| Period | 7/12/21 → 7/16/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Funding
This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The research of I. Yanovsky was also supported by the NSF grant DMS 2012868. The research of J. Qin was supported by the NSF grant DMS 1941197. The authors would like to thank Bjorn Lambrigtsen and Luminita Vese for their helpful discussions. This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The research of I. Yanovsky was also supported by the NSF grant DMS 2012868. The research of J. Qin was supported by the NSF grant DMS 1941197.
| Funders | Funder number |
|---|---|
| National Science Foundation (NSF) | DMS 1941197, DMS 2012868 |
| National Aeronautics and Space Administration |
Keywords
- Alternating direction method of multipliers
- Satellite images
- Super-resolution
- Upsampling
ASJC Scopus subject areas
- Computer Science Applications
- General Earth and Planetary Sciences