Xiuman Liang, Wentao Liu, Fusheng Niu, Tong Tian. Research on Measurement of Volume and Surface Area of Flotation Bubbles Based on Machine Vision[J]. Acta Optica Sinica, 2018, 38(12): 1215009
- Acta Optica Sinica
- Vol. 38, Issue 12, 1215009 (2018)
Fig. 1. Experimental setup. (a) Front view; (b) top view
Fig. 2. Various forms of bubble images
Fig. 3. Bubble projection image segmentation
Fig. 4. Edge extraction process. (a) Original image; (b) pre-processing; (c) Ostu partition; (d) edge swell; (e) region segmentation; (f) Canny edge extraction
Fig. 5. Segmentation and reconstruction of overlapping bubbles
Fig. 6. Scan bubble edge point
Fig. 7. Schematic of edge gradient
Fig. 8. Comparison of edge extraction between SEE and TSED. (a) 623 lx; (b) 442 lx; (c) 276 lx
Fig. 9. Influence of parameter variation on HSDM calculation
Fig. 10. Bubble volume of different methods at different stirring rates
Fig. 11. Trend graph of measurement of bubble surface area
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Table 1. Long axis parameters of bubble at different observation angles
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Table 2. Result comparison of different measurement methods
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