• Acta Photonica Sinica
  • Vol. 53, Issue 11, 1112004 (2024)
Xingxu YAN1, Hubing DU1,*, Leijie FENG1, Yanjie LI1..., Jinge JIA2 and Gaopeng ZHANG3,**|Show fewer author(s)
Author Affiliations
  • 1School of Mechanical and Electrical Engineering,Xi'an University of Technology,Xi'an 710021,China
  • 2Xi'an Future Intelligent Manufacturing Digital Technology Co.,LTD.,Xi'an 710000,China
  • 3Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China
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    DOI: 10.3788/gzxb20245311.1112004 Cite this Article
    Xingxu YAN, Hubing DU, Leijie FENG, Yanjie LI, Jinge JIA, Gaopeng ZHANG. Laser Center Extraction Method of Circular Linear Structure Profile Measurement Based on Cluster Segmentation[J]. Acta Photonica Sinica, 2024, 53(11): 1112004 Copy Citation Text show less
    Measurement system
    Fig. 1. Measurement system
    Flow chart of the center extraction of the light bar
    Fig. 2. Flow chart of the center extraction of the light bar
    True light spot image
    Fig. 3. True light spot image
    True light knife center
    Fig. 4. True light knife center
    Spot plots with different noise levels
    Fig. 5. Spot plots with different noise levels
    Results by three clustering methods
    Fig. 6. Results by three clustering methods
    The light knife center extracted by the steger algorithm + median filtering
    Fig. 7. The light knife center extracted by the steger algorithm + median filtering
    The light knife center extracted by the skeleton direction template method+ median filtering
    Fig. 8. The light knife center extracted by the skeleton direction template method+ median filtering
    The light knife center extracted by the proposed method
    Fig. 9. The light knife center extracted by the proposed method
    Localized enlarged image of the light knife center
    Fig. 10. Localized enlarged image of the light knife center
    Measurement setup
    Fig. 11. Measurement setup
    Results obtained by the three clustering methods
    Fig. 12. Results obtained by the three clustering methods
    Three real spot images pre-processed by proposed method
    Fig. 13. Three real spot images pre-processed by proposed method
    The optical knife center extracted by different methods
    Fig. 14. The optical knife center extracted by different methods

    Image

    Method

    K-means clusteringHierarchical clusteringSpectral clusteringDBSCAN clustering
    RIACCRIACCRIACCRIACC
    10.477 90.183 90.752 50.627 90.528 60.222 80.995 30.841 1
    20.518 40.337 00.598 10.567 00.586 20.321 50.968 20.883 5
    30.543 40.184 60.580 50.514 40.602 10.254 30.966 30.935 6
    Table 1. Cluster evaluation of each clustering algorithm

    Image

    Method

    MF+StegerMF+Direction templateProposed method
    13.735 13.948 20.080 7
    246.363 032.455 40.113 5
    365.199 057.648 10.109 0
    Table 2. Error values of each algorithm

    Image

    Method

    MF+StegerMF+Direction templateProposed method
    10.3080.3950.305
    20.3150.4030.310
    30.3250.4410.323
    Table 3. Average running time of each algorithm

    Image

    Method

    Median filtering+stegerDirection templateProposed method
    111.067 62.123 30.071 3
    212.828 94.390 10.065 6
    36.426 51.655 20.053 1
    Table 4. Error values of each algorithm

    Image

    Method

    Median filtering+stegerDirection templateProposed method
    10.3540.5250.290
    20.3940.5540.297
    30.4150.5250.303
    Table 5. Average running time of each algorithm( unit:s)
    Xingxu YAN, Hubing DU, Leijie FENG, Yanjie LI, Jinge JIA, Gaopeng ZHANG. Laser Center Extraction Method of Circular Linear Structure Profile Measurement Based on Cluster Segmentation[J]. Acta Photonica Sinica, 2024, 53(11): 1112004
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