Determination of Ore Size Distribution with Image Analysis

J. Kaartinen and H. Hyƶtyniemi (Finland)


machine vision, mining, ore, PLS, shadow detection, particle size


In the mining industry determination of size distribution is traditionally done with big and very expensive ridars. In this paper a new method for analyzing crushed ore size distribution by means of image analysis from a conveyor belt is introduced. The method introduces a cheap and effective way to do size distribution analysis. Also a special analysis system based on the idea and built at Pyhsalmi, Finland, is described. With this system the analysis can be performed on-line right after crushing.

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