Iterative enhanced multivariance products representation for effective compression of hyperspectral images

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Tuna, Süha and Töreyin, Behçet Uğur and Demiralp, Metin and Ren, Jinchang and Zhao, Huimin and Marshall, Stephen (2020) Iterative enhanced multivariance products representation for effective compression of hyperspectral images. IEEE Transactions on Geoscience and Remote Sensing. ISSN 0196-2892 (https://doi.org/10.1109/TGRS.2020.3031016)

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Abstract

Effective compression of hyperspectral images is essential due to their large data volume. Since these images are high dimensional, processing them is also another challenging issue. In this work, an efficient lossy hyperspectral image compression method based on Enhanced Multivariance Products Representation (EMPR) is proposed. As an efficient data decomposition method, EMPR enables us to represent the given multidimensional data with lower dimensional entities. EMPR, as a finite expansion with relevant approximations, can be acquired by truncating this expansion at certain levels. Thus, EMPR can be utilized as a highly effective lossy compression algorithm for hyperspectral images. In addition to these, an efficient variety of EMPR is also introduced in the paper, in order to increase the compression efficiency. The results are benchmarked with several state-of-the-art lossy compression methods. It is observed that both higher peak-signal-to-noise-ratio values and improved classification accuracy are achieved from EMPR based methods.

ORCID iDs

Tuna, Süha, Töreyin, Behçet Uğur, Demiralp, Metin, Ren, Jinchang ORCID logoORCID: https://orcid.org/0000-0001-6116-3194, Zhao, Huimin and Marshall, Stephen ORCID logoORCID: https://orcid.org/0000-0001-7079-5628;
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