It has been suggested that Imaging spectroscopy be merged into this article. (Discuss) Proposed since November 2023.
Alice ultraviolet imaging spectrometer on New Horizons
An imaging spectrometer is an instrument used in hyperspectral imaging and imaging spectroscopy to acquire a spectrally-resolved image of an object or scene, usually to support analysis of the composition the object being imaged.[1][2] The spectral data produced for a pixel is often referred to as a datacube due to the three-dimensional representation of the data. Two axes of the image correspond to vertical and horizontal distance and the third to wavelength. The principle of operation is the same as that of the simple spectrometer, but special care is taken to avoid optical aberrations for better image quality.
Example imaging spectrometer types include: filtered camera, whiskbroom scanner, pushbroom scanner, integral field spectrograph (or related dimensional reformatting techniques), wedge imaging spectrometer, Fourier transform imaging spectrometer, computed tomography imaging spectrometer (CTIS), image replicating imaging spectrometer (IRIS), coded aperture snapshot spectral imager (CASSI), and image mapping spectrometer (IMS).
^William L. Wolfe (1997). Introduction to Imaging Spectrometers. SPIE Press. ISBN 978-0-8194-2260-6.
^Freek D. van der Meer; S.M. de Jong (29 March 2011). Imaging Spectrometry: Basic Principles and Prospective Applications. Springer Science & Business Media. ISBN 978-1-4020-0194-9.
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