The spectral signatures of the materials contained in hyperspectral images, also called
endmembers (EMs), can be significantly affected by variations in atmospheric, illumination …

Nowadays, time-resolved spectroscopy data can be routinely and accurately collected in UV–
vis femtosecond transient absorption spectroscopy. However, the data analysis strategy and …

Imaging spectrometers measure electromagnetic energy scattered in their instantaneous
field view in hundreds or thousands of spectral channels with higher spectral resolution than …

The emergence of chemical imaging (CI) has gifted spectroscopy an additional dimension.
Chemical imaging systems complement chemical identification by acquiring spatially …

The surface of Mars is currently being imaged with an unprecedented combination of
spectral and spatial resolution. This high resolution, and its spectral range, gives the ability …

Mainly due to the limited spatial resolution of the data acquisition devices, hyperspectral
image pixels generally result from the mixture of several components that are present in the …

This paper considers the problem of unsupervised spectral unmixing for hyperspectral
image analysis. Each observed pixel is assumed to be a noisy linear mixture of pure …

This paper investigated the crystallization of calcium carbonate in saline solution at different
temperatures using Raman spectroscopy. Application of an advanced mixture analysis …

We propose an analytical approximation for the dependence of the effective charge on the
bare charge for spherical and cylindrical macro-ions as a function of the size of the colloid …

This paper addresses the problem of separating spectral sources which are linearly mixed
with unknown proportions. The main difficulty of the problem is to ensure the full additivity …