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Hyperspectral Subspace Identification

Bioucas-Dias, J.M., Nascimento, J.M.P.·2008·IEEE Transactions on Geoscience and Remote Sensing

Abstract

Signal subspace identification is a crucial first step in many hyperspectral processing algorithms such as target detection, change detection, classification, and unmixing. The identification of this subspace enables a correct dimensionality reduction, yielding gains in algorithm performance and complexity and in data storage. This paper introduces a new minimum mean square error-based approach to infer the signal subspace in hyperspectral imagery. The method, which is termed hyperspectral signal identification by minimum error, is eigen decomposition based, unsupervised, and fully automatic (i.e., it does not depend on any tuning parameters). It first estimates the signal and noise correlation matrices and then selects the subset of eigenvalues that best represents the signal subspace in the least squared error sense. State-of-the-art performance of the proposed method is illustrated by using simulated and real hyperspectral images.

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Metadata

Authors
Bioucas-Dias, J. M., & Nascimento, J. M. P.
Venue
IEEE Transactions on Geoscience and Remote Sensing
Published
2008-08
Volume
46
Issue
8
Pages
2435-2445
ISSN
  • 0196-2892 (ISSN-L)
  • 1558-0644
OpenAlex
W2070424424
Cited by
1,099
References
3
FWCI
81.71
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Hyperspectral Subspace Identification. https://app.cochat.ai/papers/10.1109/tgrs.2008.918089
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Bioucas-Dias, J. M., & Nascimento, J. M. P. (2008). Hyperspectral Subspace Identification. IEEE Transactions on Geoscience and Remote Sensing. https://doi.org/10.1109/tgrs.2008.918089

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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