Journal article
Image Analysis of Pellet Size for a Control System in Industrial Feed Production
DTU Data Analysis, Department of Informatics and Mathematical Modeling, Technical University of Denmark1
Department of Informatics and Mathematical Modeling, Technical University of Denmark2
Division of Industrial Food Research, National Food Institute, Technical University of Denmark3
National Food Institute, Technical University of Denmark4
When producing aquaculture fish feed pellets, the size of the output product is of immense importance. As the production method cannot produce pellets of constant and uniform size using constant machine settings, there is a demand for size control. Fish fed with feed pellets of improper size are prone to not grow as expected, which is undesirable to the aquaculture industry.
In this paper an image analysis method is proposed for automatic size-monitoring of pellets. This is called granulometry and the method used here is based on the mathematical morphological opening operation. In the proposed method, no image object segmentation is needed. The results show that it is possible to extract a general size distribution from an image of piled disordered pellets representing both length and diameter of the pellets in combination as an area.
Language: | English |
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Publisher: | Public Library of Science |
Year: | 2011 |
Pages: | e26492 |
ISSN: | 19326203 |
Types: | Journal article |
DOI: | 10.1371/journal.pone.0026492 |
ORCIDs: | Nielsen, Michael Engelbrecht , Ersbøll, Bjarne Kjær and Frosch, Stina |