Hyperspectral imaging cameras scan an object or scene using numerous spectral channels to produce a series of ‘hyperspectral’ images. They collect a sequence of wavelengths relevant to the desired application with resolutions ranging from one to several nanometers (nm). The image set is then combined into a 3D hyperspectral data cube featuring two spatial dimensions and a third spectral dimension comprising a range of wavelengths. Obtaining the full spectrum of interest requires several spectral channels with marginal steps between each one. Multispectral imaging, in contrast, may select for only a few specific wavebands of interest to an application, which may not be contiguous.
Uses of Hyperspectral Imaging
The slow acquisition rates and relatively high instrument cost of hyperspectral imaging have prohibited some users from deploying hyperspectral cameras in key areas. However, significant developments in remote sensing, sensor technologies in general, and smaller format—yet more robust—optical components, have made it a more attractive solution for an array of application areas, including:
Gratings for Hyperspectral Imaging
Designing a new hyperspectral imaging system for an agricultural, medical, or industrial application? Let our expert staff consult with you to design a custom grating or optical bench to meet your application needs.
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