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Proceedings Paper

Bit allocation for 2D compression of hyperspectral images for classification
Author(s): Sangwook Lee; Jonghwa Lee; Chulhee Lee
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Paper Abstract

In this paper, we propose a bit allocation method for 2D compression of hyperspectral images to enhance classification performance. First, we select a number of classes from original hyperspectral images. It is noted that the classes can be automatically selected by applying an unsupervised segmentation method. Then, we apply a feature extraction method and determine discriminately dominant feature vectors. By examining the feature vectors, we determine the discriminant usefulness of each spectral band. Finally, based on the discriminant usefulness of the spectral bands, we determine bit allocation of each spectral band. Experimental results show that it is possible to enhance the discriminant information at the expense of PSNR. Depending on applications, one can either minimize the mean squared error or choose to preserve the classification capability of the hyperspectral images.

Paper Details

Date Published: 31 August 2009
PDF: 7 pages
Proc. SPIE 7455, Satellite Data Compression, Communication, and Processing V, 745507 (31 August 2009); doi: 10.1117/12.826958
Show Author Affiliations
Sangwook Lee, Yonsei Univ. (Korea, Republic of)
Jonghwa Lee, Yonsei Univ. (Korea, Republic of)
Chulhee Lee, Yonsei Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7455:
Satellite Data Compression, Communication, and Processing V
Bormin Huang; Antonio J. Plaza; Raffaele Vitulli, Editor(s)

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