Specim AisaFENIX

Specim, Spectral Imaging, Ltd, has released AisaFENIX, a robust and compact spectral imager for field and airborne installations.

AisaFENIX can capture high quality hyperspectral data over VNIR, NIR and SWIR wavelengths in a single continuous image. The user can measure, for every pixel, a spectrum from 380 nm to 2500 nm with up to 620 spectral bands, whatever the targets and the distances to the targets are.

A number of environmental, defence and law enforcement applications require high quality hyperspectral data at different wavelength ranges. Often, the more quality spectral information available, the more reliable the results are. This need has resulted in complicated and expensive systems, where two separate imagers have been mechanically co-aligned into a solid platform. The challenge with separate optical systems has been the nearly impossible task of achieving perfect pixel co-registration of the two images (VNIR and SWIR) when the distance to the target is changing.

AisaFENIX images the target over the 380–2500 nm spectral region through single front optics and a single input slit, keeping all wavebands spatially co-registered independently of the distance to the target. AisaFENIX employs a patent pending “single optics dual channel” imaging spectrograph which, inspite of the single input slit, has two diffraction gratings, one optimised for VNIR and the other for the SWIR region. Additionally, two focal plane arrays (FPA), a state of the art CMOS and cryogenically cooled mercury cadmium telluride (MCT), are employed in order to maximise sensitivity and signal-to-noise ratio (SNR) in the VNIR and SWIR spectral regions. With two FPAs, different exposure times can be applied in the VNIR and SWIR regions in order to optimally adapt to various spectral illumination conditions. As the imaging spectrograph is extremely compact, AisaFENIX weighs less than 15 kg. This represents more than a 75% reduction in weight and size when compared to a typical two-camera setup.

AisaFENIX has a wide range of applications, including

  • Detection of illicit/narcotic plants, and other law enforcement applications
  • Detection of invasive species and infected plants and trees
  • Vegetation research and environmental monitoring
  • Mineral mapping on drill cores and other geological samples
  • Full object extraction of LiDAR point clouds
  • Detection of camouflaged targets and improvised explosive devices (IED) from ground vehicles and various airborne platforms, including turrets and UAVs
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