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  4. Joint trace/TV norm minimization: A new efficient approach for spectral compressive imaging
 
conference paper

Joint trace/TV norm minimization: A new efficient approach for spectral compressive imaging

Golbabaee, Mohammad  
•
Vandergheynst, Pierre  
2012
2012 19th IEEE International Conference on Image Processing
IEEE International Conference on Image Processing (ICIP 2012)

In this paper we propose a novel and efficient model for compressed sensing of hyperspectral images. A large-size hyperspectral image can be subsampled by retaining only 3% of its original size, yet robustly recovered using the new approach we present here. Our reconstruction approach is based on minimizing a convex functional which penalizes both the trace norm and the TV norm of the data matrix. Thus, the solution tends to have a simultaneous low-rank and piecewise smooth structure: the two important priors explaining the underlying correlation structure of such data. Through simulations we will show our approach significantly enhances the conventional compression rate-distortion tradeoffs. In particular, in the strong undersampling regimes our method outperforms the standard TV denoising image recovery scheme by more than 17dB in the reconstruction MSE.

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Type
conference paper
DOI
10.1109/ICIP.2012.6467014
Author(s)
Golbabaee, Mohammad  
Vandergheynst, Pierre  
Date Issued

2012

Published in
2012 19th IEEE International Conference on Image Processing
Start page

933

End page

936

Subjects

Hyperspectral images

•

Compressed sensing

•

Low rank matrix recovery

•

TV norm

•

Trace norm

•

Convex minimization

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LTS2  
Event name
IEEE International Conference on Image Processing (ICIP 2012)
Available on Infoscience
February 15, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/77761
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