Hyperspectral Imaging

Hyperspectral imaging makes it possible to split the light reflected by a scene into bands of contiguous wavelengths.

By way of contrast, a color camera can only split light into the three wavelength bands discernible by the human eye. Hyperspectral technology establishes a unique spectral signature for each material by covering wavelengths in both the visible and infrared band, thereby significantly increasing the power to discern objects.

Using our enabling technologies, we quickly hone in on the solution best suited to the needs of the application:

  • Hyperspectral acquisition platform: we’ve developed a hyperspectral acquisition station that can measure the spectral response of any object from the visible band to NIR (400 nm to 2,500 nm), and at various spatial resolutions up to 30 µm. This platform is compatible with multiple measurement configurations when developing solutions. Lighting source design is critical. Our device maximizes projected light energy in the sensing area while controlling heat emission. It is also optimized to ensure both spatial (along field of view) and spectral consistency to improve camera response at each wavelength.
  • Hyperspectral data processing platform: Our team knows how to interpret hyperspectral measurements to identify wavelengths of interest as well as the necessary decision rules.

Our goal is to find the best solution for the task at hand. That’s why we adapt our approach to the specific needs of each client. Analyses performed with our hyperspectral platform can be used to reduce the number of wavelength bands needed for an application, leading to substantially lower costs.

Hyperspectral station specifications

Visible range SWIR range
Detector CCD (1392 x 1040-λ pixels) HgCdTe (320 x 256-λ pixels)
Spectral range 400 – 1000 nm 1000 – 2500 nm
Spectral resolution 2.8 nm 6.8 nm
Spatial resolution Configurable (down to 0.3 mm) Configurable (down to 0.2 mm)
Spatial pixels 1392 320
Acquisition rate 60 Hz 60 Hz
Sample dimensions Up to 60 cm (W) along FOV, 40 cm (H) Up to 60 cm (W) along FOV, 40 cm (H)

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