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AN ADAPTIVE APPROACH FOR BUBBLE SIZE MEASUREMENT FROM FLOTATION FROTH IMAGES

AUTHOR/S: N. MEHRSHAD, M. MASSINAEI, F. DANESHMAND
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 619-624 pp

ABSTRACT

Froth flotation is an effective process for separating valuable from gangue minerals.
Studies show that the performance of froth flotation is affected by the froth structure,
and has a strong relationship with visual information of the froth surface. The
determination of the froth structure, therefore, plays a vital role for controlling the
process. Extensive studies have shown that computer-based vision technology is a
robust, non-intrusive and cost effective approach for monitoring and controlling of
flotation circuits. Despite recent advances in image analysis and several algorithms
developed for froth flotation, there is not still a comprehensive algorithm to be able to
accurately determine the froth features in real froth images with wide range of bubble
size distributions. Since bubble segmentation process is the most critical stage in an
image processing algorithm, in the present study a new bubble segmentation algorithm
is proposed which utilizes an adaptive marker based watershed transform.

Keywords: Froth Flotation, Bubble, Image Analysis

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