For use in astronomy, agriculture, molecular biology, biomedical imaging, geosciences, physics, and surveillance, engineers create hyperspectral imaging sensors and processing systems. Hyperspectral sensors use a significant portion of the electromagnetic spectrum to examine objects. The electromagnetic spectrum contains distinct "fingerprints" left by some objects. These "fingerprints" also referred to as spectral signatures allow the materials that make up a scanned object to be identified. A spectral signature for oil, for instance, aids geologists in discovering new oil fields.

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