Multispectral imaging enables several discrete images in the visible and IR bands of the spectrum to be captured and processed. To capture continuous spectral bands from the ultraviolet to the far infrared, hyperspectral imaging is a powerful if often expensive imaging tool.
Hyperspectral remote-sensing applications have flourished for several decades. Now, low-cost imaging spectrometers are being introduced that allow innovative approaches to applications such as medical diagnostics, metallurgy, sorting materials, food processing, and microscopy.
You can find more examples by searching our website. I expect to see numerous such articles in the future. For example, we’ll be describing a hyperspectral blueberry sorting system from EVK in Austria in our September issue.