HySpex cameras by NEO (Norsk Elektro Optikk) provide the highest performance, research-grade, hyperspectral imaging in the 400-1000nm and 900-2500nm spectral bands and are the spectral imager of choice in demanding laboratory, field, airborne and industrial applications. HySpex cameras employ “line-scan” sensor technology to provide the highest precision in spectral imaging. In a line-scan type of spectral imager, the camera images the object line-by-line using a so-called “push-broom” scanning technique, in which one narrow spatial line in the scene is imaged at a time, and this line is split into its spectral components before reaching the sensor array. On the 2D sensor array, one dimension is used for spectral separation and the second dimension is used for imaging in one spatial direction. The second spatial dimension in the scene arises from scanning the camera over the scene (for example by means of UAV or aircraft movement, or a conveyor belt). The result can be seen as one 2D image for each spectral channel, or alternatively every pixel in the image contains one full spectrum. Compared to “snapshot” or real-time spectral imagers, push-broom instruments trade higher spectral and spatial resolution for reduced measurement speed.
