Abstract
In this paper we describe a computer vision system based on
SLS (Subsurface Laser Scattering) for industrial food inspection. To ob-
tain high and uniform quality, in for example dairy products like yoghurt
and cheese, it is important to monitor the change in size and shape of
microscopic particles over time. In this paper we demonstrate the use-
fulness of our SLS system for characterizing food items. We use a laser
source that can be tuned to any wavelength in the range of 455 nm -
1020 nm by applying an AOTF (Acousto-Optical Tunable Filter) to an
optical beam generated by a SuperK (supercontinuum) laser system. In
our experiments we show how the system can be used for discriminating
dairy products with dierent structure and how the structural change
of a foam can be monitored over time. Time stability of the system is
essential for measurements over several hours, and we demonstrate the
time stability by measuring the re
ectance prole of an inorganic phan-
tom. The SLS technique is a very promising technique for non-intrusive
food inspection, especially for homogenous products where particle size
and shape are important parameters.
Original language | English |
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Title of host publication | Scandinavian Workshop on Imaging Food Quality 2011 : Ystad, May 27, 2011 - Proceedings |
Number of pages | 98 |
Place of Publication | Kgs. Lyngby, Denmark |
Publisher | Technical University of Denmark |
Publication date | 2011 |
Pages | 29-34 |
Publication status | Published - 2011 |
Event | Scandinavian Workshop on Imaging Food Quality 2011 - Ystad, Sweden Duration: 27 May 2011 → 27 May 2011 http://www2.imm.dtu.dk/projects/SWIFQ/ |
Workshop
Workshop | Scandinavian Workshop on Imaging Food Quality 2011 |
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Country | Sweden |
City | Ystad |
Period | 27/05/2011 → 27/05/2011 |
Other | Held in conjunction with the Scandinavian Conference on Image Analysis (SCIA 2011) |
Internet address |
Series | IMM-Technical Report-2011 |
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Number | 15 |