<abstract xmlns="http://www.w3.org/1999/xhtml"><p> In this study, proximity based optimization algorithms are used for lossy compression of hyperspectral images that are inherently large scale. This is the first time that such proximity based optimization algorithms are implemented with an online dictionary learning method. Compression performances are compared with the one obtained by various sparse representation algorithms. As a result, proximity based optimization algorithms are listed among the three best ones in terms of compression performance values for all hyperspectral images. Additionally, the applicability of anomaly detection is tested on the reconstructed images.</p></abstract>

In this study, proximity based optimization algorithms are used for lossy compression of hyperspectral images that are inherently large scale. This is the first time that such proximity based optimization algorithms are implemented with an online dictionary learning method. Compression performances are compared with the one obtained by various sparse representation algorithms. As a result, proximity based optimization algorithms are listed among the three best ones in terms of compression performance values for all hyperspectral images. Additionally, the applicability of anomaly detection is tested on the reconstructed images.

Large-scale hyperspectral image compression via sparse representations based on online learning

International Journal of Applied Mathematics and Computer Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

In this study, proximity based optimization algorithms are used for lossy compression of hyperspectral images that are inherently large scale. This is the...

Large-scale hyperspectral image compression via sparse representations based on online learning

Published Online: Mar 31, 2018

Page range: 197 - 207

Received: Feb 10, 2017

Accepted: Oct 16, 2017

DOI: https://doi.org/10.2478/amcs-2018-0015

Keywords
hyperspectral imaging, compression algorithms, dictionary learning, sparse coding

© by İrem Ülkü

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Large-scale hyperspectral image compression via sparse representations based on online learning

Published Online: Mar 31, 2018

Page range: 197 - 207

Received: Feb 10, 2017

Accepted: Oct 16, 2017

DOI: https://doi.org/10.2478/amcs-2018-0015

Keywordshyperspectral imaging, compression algorithms, dictionary learning, sparse coding

© by İrem Ülkü

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
hyperspectral imaging, compression algorithms, dictionary learning, sparse coding