Remote Sensing Applications and Decision Support

AB3C: adaptive boundary-based band-categorization of hyperspectral images

[+] Author Affiliations
Atif Mughees, Rucheng Du, Linmi Tao

Tsinghua University, Computer Vision and Graphics Lab, Department of Computer Science and Technology, Haidian, Beijing 100084, China

Xiaoqi Chen

Tsinghua University, Institute for Interdisciplinary Information Sciences, Haidian, Beijing 100084, China

J. Appl. Remote Sens. 10(4), 046009 (Nov 05, 2016). doi:10.1117/1.JRS.10.046009
History: Received May 9, 2016; Accepted October 13, 2016
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Abstract.  The high dimensionality of hyperspectral images (HSIs) with significant levels of redundancy and noise is a pervasive problem that creates a heavy burden and many inconveniences in terms of accuracy and efficiency for all the subsequent applications. To address this problem, we proposed an adaptive-boundary adjustment-based groupwise band-categorization (BC) framework that classifies bands by the information contained within each band and redundant/noisy components without compromising the original content from the raw HSI. Since HSI labels are difficult to collect, an unsupervised spectral-spatial adaptive band-noise factor-based formulation is devised for BC based on the measurement of boundary movement/adjustment and band correlation. Robust clustering and boundary-adjustment-based methods involve two key issues: band correlation and band preference. Our proposed method contemplates band correlation and band synergy, and band preference is defined by the discriminative information contained in each band. According to different information-distribution levels, an adaptive mechanism is proposed to retain the spectral correlations in spectral dimensions and match the actual structure in spatial dimensions. The proposed method is based on the observation that clustering and boundary adjustment techniques are sensitive to noise and redundancy, which can effectively contribute to estimates and help classify the bands. Comprehensive experimental results on challenging airborne visible/infrared-imaging spectrometer datasets from Indian Pines, Moffett Field, and Salinas demonstrate the significant advancement in these two applications and show the reliability and effectiveness of the proposed framework without compromising the informative bands. Because of its usefulness, BC can be successfully applied to many practical applications of hyperspectral remote sensing. Effective application of the proposed framework is demonstrated by applying it on HSI classification and also for estimating the noise. The ability of the method to characterize the bands along with the noise estimation of HSIs is of significant benefit for subsequent remote-sensing techniques.

© 2016 Society of Photo-Optical Instrumentation Engineers


Atif Mughees ; Xiaoqi Chen ; Rucheng Du and Linmi Tao
"AB3C: adaptive boundary-based band-categorization of hyperspectral images", J. Appl. Remote Sens. 10(4), 046009 (Nov 05, 2016). ;

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