Determining the intrinsic dimension of a hyperspectral image using random matrix theory

K Cawse-Nicholson, SB Damelin… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
Determining the intrinsic dimension of a hyperspectral image is an important step in the
spectral unmixing process and under-or overestimation of this number may lead to incorrect …

Estimating the intrinsic dimension of hyperspectral images using a noise-whitened eigengap approach

A Halimi, P Honeine, M Kharouf… - … on Geoscience and …, 2016 - ieeexplore.ieee.org
Linear mixture models are commonly used to represent a hyperspectral data cube as linear
combinations of endmember spectra. However, determining the number of endmembers for …

Estimation of the number of endmembers via thresholding ridge ratio criterion

X Zhu, Y Kang, J Liu - IEEE Transactions on Geoscience and …, 2019 - ieeexplore.ieee.org
Endmember is defined as the spectral signature of pure material present in hyperspectral
imagery. Estimation of the number of endmembers (NOE) present in a scene is an important …

The effect of correlation on determining the intrinsic dimension of a hyperspectral image

K Cawse-Nicholson, A Robin… - IEEE Journal of Selected …, 2013 - ieeexplore.ieee.org
Determining the intrinsic dimension of a hyperspectral image is an important step in the
spectral unmixing process and under-or over-estimation of this number may lead to incorrect …

Full-spectrum denoising of high-SNR hyperspectral images

M Colom, JM Morel - JOSA A, 2019 - opg.optica.org
The high spectral redundancy of hyper/ultraspectral Earth-observation satellite imaging
raises three challenges:(a) to design accurate noise estimation methods,(b) to denoise …

Evaluation of bands containing spectrally correlated noise in hyperspectral imagery

K Cawse-Nicholson, M Sears… - 2013 5th Workshop on …, 2013 - ieeexplore.ieee.org
Studies on real hyperspectral data have shown that spectrally correlated noise may have a
negative impact on noise approximation methods and hence on procedures that require …

Estimating the intrinsic dimension of hyperspectral images using an eigen-gap approach

A Halimi, P Honeine, M Kharouf, C Richard… - arXiv preprint arXiv …, 2015 - arxiv.org
Linear mixture models are commonly used to represent hyperspectral datacube as a linear
combinations of endmember spectra. However, determining of the number of endmembers …

Estimation de la dimension intrinsèque des images hyperspectrales à l'aide d'un modèle à variances isolées

A Halimi, P Honeine, M Kharouf, C Richard… - Actes du 25-ème …, 2015 - hal.science
Cet article propose une approche automatique pour estimer le nombre de spectres de
composés purs dans les images hyperspectrales. L'estimation est basée sur de récents …