Seven Ways to Improve Example-Based Single Image Super Resolution

In this paper we present seven techniques that everybody should know to improve example-based single image super resolution (SR): 1) augmentation of data, 2) use of large dictionaries with efficient search structures, 3) cascading, 4) image self-similarities, 5) back projection refinement, 6) enhanc...

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Published in:2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) pp. 1865 - 1873
Main Authors: Timofte, Radu, Rothe, Rasmus, Van Gool, Luc
Format: Conference Proceeding
Language:English
Published: IEEE 01.06.2016
Subjects:
Dictionaries
Encoding
Image reconstruction
Image resolution
Testing
Training
ISSN:1063-6919
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Abstract In this paper we present seven techniques that everybody should know to improve example-based single image super resolution (SR): 1) augmentation of data, 2) use of large dictionaries with efficient search structures, 3) cascading, 4) image self-similarities, 5) back projection refinement, 6) enhanced prediction by consistency check, and 7) context reasoning. We validate our seven techniques on standard SR benchmarks (i.e. Set5, Set14, B100) and methods (i.e. A+, SRCNN, ANR, Zeyde, Yang) and achieve substantial improvements. The techniques are widely applicable and require no changes or only minor adjustments of the SR methods. Moreover, our Improved A+ (IA) method sets new stateof-the-art results outperforming A+ by up to 0.9dB on average PSNR whilst maintaining a low time complexity.
AbstractList In this paper we present seven techniques that everybody should know to improve example-based single image super resolution (SR): 1) augmentation of data, 2) use of large dictionaries with efficient search structures, 3) cascading, 4) image self-similarities, 5) back projection refinement, 6) enhanced prediction by consistency check, and 7) context reasoning. We validate our seven techniques on standard SR benchmarks (i.e. Set5, Set14, B100) and methods (i.e. A+, SRCNN, ANR, Zeyde, Yang) and achieve substantial improvements. The techniques are widely applicable and require no changes or only minor adjustments of the SR methods. Moreover, our Improved A+ (IA) method sets new stateof-the-art results outperforming A+ by up to 0.9dB on average PSNR whilst maintaining a low time complexity.
Author Rothe, Rasmus
Van Gool, Luc
Timofte, Radu
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  givenname: Luc
  surname: Van Gool
  fullname: Van Gool, Luc
  email: vangool@vision.ee.ethz.ch
  organization: ETH Zurich, KU Leuven, Zurich, Switzerland
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Snippet In this paper we present seven techniques that everybody should know to improve example-based single image super resolution (SR): 1) augmentation of data, 2)...
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SubjectTerms Dictionaries
Encoding
Image reconstruction
Image resolution
Testing
Training
Title Seven Ways to Improve Example-Based Single Image Super Resolution
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