Na Dong, Danping Huang, Jianping Tian, Dan Huang, Huibo Luo. Online Detection of Wine Seal Ring Defects[J]. Laser & Optoelectronics Progress, 2019, 56(23): 231501
- Laser & Optoelectronics Progress
- Vol. 56, Issue 23, 231501 (2019)
Fig. 1. Schematics of wine seal ring. (a) Top view; (b) front view
Fig. 2. Schematic of mechanical structure of online detection system for wine seal ring
Fig. 3. Schematic of dual-field and dual-station collaborative online detection
Fig. 4. Original images of wine seal ring. (a) Traditional imaging; (b) LC1 acquisition imaging; (c) LC2 acquisition imaging
Fig. 5. Flowchart of wine seal ring recognition and defect detection algorithm
Fig. 6. Outline of wine seal ring. (a)(c)(e)(g) Binary graph; (b)(d)(f)(h) boundary curve
Fig. 7. Contour decomposition of wine seal rings using different basis wavelets. (a) Loading signal; (b) db1 wavelet; (c) db3 wavelet; (d) db4 wavelet
Fig. 8. Decomposition coefficients of wine seal ring contours at different scales of db3 wavelet. (a) The fourth layer; (b) the third layer; (c) the second layer; (d) the first layer
Fig. 9. Effects of wine seal ring detection for different defect detection methods. (a) Original graph; (b) wine seal ring profile; (c) curvature method; (d) derivative method; (e) wavelet modulus maximum method
Fig. 10. Time-consuming diagram of system detection
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