TY - GEN
T1 - An orthogonal subspace projection-based for estimation of virtual dimensionality for hyperspectral data exploitation
AU - Liu, Weimin
AU - Wu, Chao Cheng
AU - Chang, Chein I.
PY - 2007
Y1 - 2007
N2 - A recently introduced concept, virtual dimensionality (VD) has been shown promise in many applications of hyperspectral data exploitation. It was originally developed for estimating number of spectrally distinct signal sources. This paper explores utility of the VD from various signal processing perspectives and further investigates four techniques, Gershgorin radius (GR), orthogonal projection subspace (OSP), signal subspace estimation (SSE), Neyman-Pearson detection (NPD), to be used to estimate the VD. In particular, the OSP-based VD estimation technique is new and has several advantages over other methods. In order to evaluate their performance, a comparative study and analysis is conducted via synthetic and real image experiments.
AB - A recently introduced concept, virtual dimensionality (VD) has been shown promise in many applications of hyperspectral data exploitation. It was originally developed for estimating number of spectrally distinct signal sources. This paper explores utility of the VD from various signal processing perspectives and further investigates four techniques, Gershgorin radius (GR), orthogonal projection subspace (OSP), signal subspace estimation (SSE), Neyman-Pearson detection (NPD), to be used to estimate the VD. In particular, the OSP-based VD estimation technique is new and has several advantages over other methods. In order to evaluate their performance, a comparative study and analysis is conducted via synthetic and real image experiments.
KW - Gershgorin radius (GR)
KW - Neyman-Pearson detection (NPD)
KW - Orthogonal projection subspace (OSP)
KW - Signal subspace estimation (SSE)
KW - Virtual dimensionality (VD)
UR - https://www.scopus.com/pages/publications/35948991175
U2 - 10.1117/12.719543
DO - 10.1117/12.719543
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AN - SCOPUS:35948991175
SN - 0819466875
SN - 9780819466877
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
T2 - Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
Y2 - 9 April 2007 through 12 September 2007
ER -