Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/107639
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Type: | Conference paper |
Title: | Cluster sparsity field for hyperspectral imagery denoising |
Author: | Zhang, L. Wei, W. Zhang, Y. Shen, C. Van Den Hengel, A. Shi, Q. |
Citation: | Lecture Notes in Artificial Intelligence, 2016 / Leibe, B., Matas, J., Sebe, N., Welling, M. (ed./s), vol.9909, pp.631-647 |
Publisher: | Springer International Publishing AG |
Issue Date: | 2016 |
Series/Report no.: | Lecture Notes in Computer Science |
ISBN: | 9783319464534 |
ISSN: | 0302-9743 1611-3349 |
Conference Name: | 14th European Conference on Computer Vision (ECCV) (8 Oct 2016 - 16 Oct 2016 : Amsterdam, Netherlands) |
Editor: | Leibe, B. Matas, J. Sebe, N. Welling, M. |
Statement of Responsibility: | Lei Zhang, Wei Wei, B, Yanning Zhang, Chunhua Shen, Anton van den Hengel, and Qinfeng Shi |
Abstract: | Hyperspectral images (HSIs) can facilitate extensive computer vision applications with the extra spectra information. However, HSIs often suffer from noise corruption during the practical imaging procedure. Though it has been testified that intrinsic correlation across spectrum and spatial similarity (i.e., local similarity in locally smooth areas and non-local similarity among recurrent patterns) in HSIs are useful for denoising, how to fully exploit them together to obtain a good denoising model is seldom studied. In this study, we present an effective cluster sparsity field based HSIs denoising (CSFHD) method by exploiting those two characteristics simultaneously. Firstly, a novel Markov random field prior, named cluster sparsity field (CSF), is proposed for the sparse representation of an HSI. By grouping pixels into several clusters with spectral similarity, the CSF prior defines both a structured sparsity potential and a graph structure potential on each cluster to model the correlation across spectrum and spatial similarity in the HSI, respectively. Then, the CSF prior learning and the image denoising are unified into a variational framework for optimization, where all unknown variables are learned directly from the noisy observation. This guarantees to learn a data-dependent image model, thus producing satisfying denoising results. Plenty experiments on denoising synthetic and real noisy HSIs validated that the proposed CSFHD outperforms several state-of-the-art methods. |
Keywords: | Hyperspectral; Denoising; Structured sparsity; Spatial similarity |
Rights: | © Springer International Publishing AG 2016 |
DOI: | 10.1007/978-3-319-46454-1_38 |
Grant ID: | http://purl.org/au-research/grants/arc/DP140102270 http://purl.org/au-research/grants/arc/DP160100703 http://purl.org/au-research/grants/arc/FT120100969 |
Published version: | http://dx.doi.org/10.1007/978-3-319-46454-1_38 |
Appears in Collections: | Aurora harvest 3 Computer Science publications |
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RA_hdl_107639.pdf Restricted Access | Restricted Access | 3.88 MB | Adobe PDF | View/Open |
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