1 January 2011 Effects of linear projections on the performance of target detection and classification in hyperspectral imagery
Yi Chen, Nasser M. Nasrabadi, Trac D. Tran
Author Affiliations +
Abstract
We explore the use of several linear dimensionality reduction techniques that can be easily integrated into the hyperspectral imaging sensor. We investigate their effect on the performance of classical target detection and classification techniques for hyperspectral images. Specifically, each N-dimensional spectral pixel is embedded to an M-dimensional measurement space with M ⪡ N by a linear transformation (e.g., random measurement matrices, uniform downsampling, principal component analysis). The detectors/classifiers are then applied to the M-dimensional measurement vectors and their performances are compared to those obtained from the entire N-dimensional spectrum. Through extensive experiments on several hyperspectral imagery data sets, we demonstrate that only a small amount of measurements are necessary to achieve comparable performance to that obtained by exploiting the full N-dimensional pixels.
©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yi Chen, Nasser M. Nasrabadi, and Trac D. Tran "Effects of linear projections on the performance of target detection and classification in hyperspectral imagery," Journal of Applied Remote Sensing 5(1), 053563 (1 January 2011). https://doi.org/10.1117/1.3659894
Published: 1 January 2011
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CITATIONS
Cited by 16 scholarly publications.
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KEYWORDS
Target detection

Sensors

Principal component analysis

Single mode fibers

Matrices

Hyperspectral imaging

Image classification

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