Blast fragmentation analysis using image processing

F. Sereshki ； S. M. Hoseini ； M. Ataei

《International Journal of Mining and Geo-Engineering》 50卷2期 (2016/12) Pp. 211-218

https://doi.org/10.22059/ijmge.2016.59831

摘要

In this research, first of all, the common problems in fragmentation analysis are reviewed with regard to the reliability and rapidity of the evaluation. Then, the available methods used for evaluation of blast results are described. The usual errors especially in recognizing rock fragments in computer-aided methods, and also, the importance of accurate determination of fragment sizes in image analysis methods are illustrated. After reviewing previous research work in this area, an algorithm is proposed for automated determination of rock particles’ boundary in Matlab software. This method can automatically determine the particles boundary in very short time. The results of proposed method are compared with those of Split Desktop and GoldSize software packages in two automated and manual states. Comparing the curves extracted from different methods reveals that the proposed approach is accurately applicable in measuring the size distribution of laboratory samples, while the manual determination of boundaries in conventional software packages is very laborious and time-consuming; and moreover the results of automated netting of fragments are very different from real values due to the error in separation of the objects.

關鍵字

Auto delineation ； Fragmentation measurement ； GoldSize ； Matlab software ； SplitDesktop