The terms imaging spectroscopy, imaging spectrometry, hyperspectral imaging, and, occasionally, ultraspectral imaging are often used interchangeably. Even though semantic differences might exist, a common definition for such terms is as follows: the simultaneous acquisition of spatially coregistered images, in many narrow, spectrally contiguous bands, measured in calibrated radiance units, from a remotely operated platform. [Source: Encyclopedia of Geography; Imaging Spectroscopy]
remote sensing
imaging spectroscopy
concepts