Journal of Spectral Imaging,   Volume 9   Article ID a4   (2020)

Peer reviewed Letter

The hype in spectral imaging

  • Gerrit Polder
  • Aoife Gowen
Spectral Imaging Research Group, School of Biosystems and Food Engineering, University College Dublin, Ireland
[email protected]
 https://orcid.org/0000-0002-9494-2204
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 Corresponding Author
Wageningen University & Research, Wageningen, Netherlands
[email protected]
 https://orcid.org/0000-0003-4896-4776
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Hyperspectral imaging is currently a very well-known and much used technology for measuring features in different fields, such as chemistry, geology, medicine, food and agriculture, either spaceborne (satellites), airborne (drones) or at close proximity (e.g. field scanning, industrial sorting lines or microscopy). Its background is two-fold, and it can be considered as a special case of spectroscopy (“imaging spectroscopy”) or a special case of imaging (“spectral imaging”). Current practice is to use adjectives such as multi and hyper added to “spectral imaging” in order to characterise the number of wavelength bands. In this paper we propose the community to use scientifically sound terminology, like “imaging spectroscopy” or “spectral imaging”, without using ambiguous adjectives. Further, we encourage the community to define and agree upon clear adjectives to describe the number of variables in the naming of our imaging technique.

Keywords: imaging spectroscopy, spectral imaging, multispectral imaging, hyperspectral imaging, superspectral imaging, ultraspectral imaging, hypercube

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