Spectral imaging technology is an emerging modality that combines the advantages of
both imaging and spectroscopy (high spatial and spectral resolution) in one device. The technology
has potential in numerous medical imaging and diagnostic applications. In this review, we describe
the techniques used to acquire spectral images and the methods used for analyzing spectral images.
We then provide detailed review about the progress of the spectral imaging technology in skin and
endoscopy applications. This review also covers the recent patents on spectral imaging devices,
methods, and data analysis algorithms.
Keywords: Endoscopy, medical diagnosis, optical absorption, optical scattering, skin diagnosis, spectral imaging,
spectroscopy, tissue reflectance.
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