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

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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.
Original languageEnglish
Title of host publicationImage Analysis : 17th Scandinavian Conference, SCIA 2011 - Ystad, Sweden, May 2011 - Proceedings
PublisherSpringer
Publication date2011
Pages327-337
ISBN (Print)978-3-642-21226-0
DOIs
Publication statusPublished - 2011
Event17th Scandinavian Conference on Image Analysis (SCIA) - Ystad Saltsjöbad, Ystad, Sweden
Duration: 23 May 201127 May 2011
http://www.maths.lth.se/vision/scia2011/

Conference

Conference17th Scandinavian Conference on Image Analysis (SCIA)
LocationYstad Saltsjöbad
CountrySweden
CityYstad
Period23/05/201127/05/2011
Internet address
SeriesLecture Notes in Computer Science
Number6688
ISSN0302-9743

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