Supercontinuum Light Sources for Hyperspectral Subsurface Laser Scattering

Applications for Food Inspection
  • Otto Højager Attermann Nielsen
  • Anders Lindbjerg Dahl
  • Rasmus Larsen
  • Flemming Møller
  • Frederik Donbæk Nielsen
  • Carsten L. Thomsen
  • Henrik Aanæs
  • Jens Michael Carstensen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6688)

Abstract

A materials structural and chemical composition influences its optical scattering properties. In this paper we investigate the use of subsurface laser scattering (SLS) for inferring structural and chemical information of food products. We have constructed a computer vision system based on a supercontinuum laser light source and an Acousto-Optic Tunable Filter (AOTF) to provide a collimated light source, which can be tuned to any wavelength in the range from 480 to 900 nm. We present the newly developed hyperspectral vision system together with a proof-of-principle study of its ability to discriminate between dairy products with either similar chemical or structural composition. The combined vision system is a new way for industrial food inspection allowing non-intrusive online process inspection of parameters that is hard with existing technology.

Keywords

Vision System Hyperspectral Image Loglog Model Food Inspection Direct Digital Synthesizer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Otto Højager Attermann Nielsen
    • 1
  • Anders Lindbjerg Dahl
    • 1
  • Rasmus Larsen
    • 1
  • Flemming Møller
    • 2
  • Frederik Donbæk Nielsen
    • 3
  • Carsten L. Thomsen
    • 3
  • Henrik Aanæs
    • 1
  • Jens Michael Carstensen
    • 1
  1. 1.DTU InformaticsTechnical University of DenmarkDenmark
  2. 2.DANISCO A/SDenmark
  3. 3.NKT Photonics A/SDenmark

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