研究目的
To review the application of two-dimensional correlation spectroscopy (2D-COS) for analyzing spatially resolved vibrational spectra, with a focus on hyperspectral imaging (HSI) studies, and to demonstrate its utility in spectral band assignment and detecting subtle correlations between spectral features or different imaging modalities.
研究成果
The paper concludes that 2D-COS is a valuable tool for analyzing spatially resolved hyperspectral data, offering insights into spectral band assignment and detecting correlations between spectral features or different imaging modalities. It also highlights the potential of 2D-COS in heterospectral hyperspectral imaging and provides an overview of available software tools for 2D-COS analysis.
研究不足
The paper discusses the challenges associated with the interpretation of asynchronous 2D correlation spectra obtained from spatially resolved data, especially when the underlying perturbing variable (concentration) is not changing monotonically. It also mentions the limitations in the information gain from asynchronous 2D-COS analysis of spatially resolved data.