Fast Hyperspectral Band Selection Based on Spatial Feature Extraction

Cao, Xianghai and Ji, Yamei and Wang, Lin and Ji, Beibei and Jiao, Licheng and Han, Jungong (2018) Fast Hyperspectral Band Selection Based on Spatial Feature Extraction. Journal of Real-Time Image Processing, 15 (3). pp. 555-564. ISSN 1861-8200

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Hyperspectral images usually consist of hundreds of spectral bands, which can be used to precisely characterize different land cover types. However, the high dimensionality also has some disadvantages, such as the Hughes effect and a high storage demand. Band selection is an effective method to address these issues. However, most band selection algorithms are conducted with the high-dimensional band images, which will bring high computation complexity and may deteriorate the selection performance. In this paper, spatial feature extraction is used to reduce the dimensionality of band images and improve the band selection performance. The experiment results obtained on three real hyperspectral datasets confirmed that the spatial feature extraction-based approach exhibits more robust classification accuracy when compared with other methods. Besides, the proposed method can dramatically reduce the dimensionality of each band image, which makes it possible for band selection to be implemented in real time situations.

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Journal Article
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Journal of Real-Time Image Processing
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14 Jun 2018 15:08
Last Modified:
22 Nov 2022 05:51