Zeng Hu, Weiming Li, Housein Alaa Aldeen, Xingyu Gao, Bingqiang Yin, Chuannen Wei. Fast Center Extraction Algorithm for Line Structured Laser Stripe of Antiwelding Slag Spatter[J]. Laser & Optoelectronics Progress, 2022, 59(16): 1611011
- Laser & Optoelectronics Progress
- Vol. 59, Issue 16, 1611011 (2022)
Fig. 1. Mechanical structure of line structured light sensor and image sample. (a) Mechanical structure of sensor; (b) image captured by sensor
Fig. 2. Principle of strip geometric center extraction
Fig. 3. Principle of connected domain extraction for strip center contour
Fig. 4. Result of edge linking. (a) Extracted geometric center of stripe; (b) image after edge linking; (c) enlarged view of Fig. 4(a) ;(d) enlarged view of Fig. 4(b)
Fig. 5. Simulation image. (a) Simulated image with artificial stripes; (b) labeled stripe center
Fig. 6. Directed graph created by ordered pairs
Fig. 7. Results of center extraction and reconstruction. (a) Extracted stripe center of weld seam; (b) extracted stripe center of weld bead; (c) reconstructed cloud point of weld bead
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Table 1. List of ordered pairs
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Table 2. Comparison results of line fitting error and running time
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Table 3. Parameter values of proposed algorithm
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