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Chinese Journal of Lasers, Volume. 51, Issue 5, 0504003(2024)

Sine Cosine Full Variation Fusion Denoising Method Based on Homomorphic Filtering

Hongxing Zhou1, Wanlin Zhou1, Haihua Cui1、*, Xiaowei Xu2, and Bo Wang2
Author Affiliations
  • 1College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, Jiangsu , China
  • 2Composite Plant of AVIC Xi’an Aircraft Industrial Corporation Co., Ltd., Xi’an 710089, Shaanxi , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (19)
    Cited By (1)
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    Figures & Tables(12)
    Laser speckle image noise suppression process based on fusion filtering

    Fig. 1. Laser speckle image noise suppression process based on fusion filtering

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    Simulation experimental diagrams. (a) Simulated original package phase diagram; (b) package phase map after adding noise

    Fig. 2. Simulation experimental diagrams. (a) Simulated original package phase diagram; (b) package phase map after adding noise

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    Images after filtering. (a) Sine cosine filtering; (b) sine cosine full variation filtering; (c) homomorphic sine cosine filtering; (d) fusion filtering

    Fig. 3. Images after filtering. (a) Sine cosine filtering; (b) sine cosine full variation filtering; (c) homomorphic sine cosine filtering; (d) fusion filtering

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    Specification of composite specimens with preset defects

    Fig. 4. Specification of composite specimens with preset defects

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    Composition diagram of digital shearing speckle interferometry system. (a) Schematic diagram; (b) photo

    Fig. 5. Composition diagram of digital shearing speckle interferometry system. (a) Schematic diagram; (b) photo

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    Original package phase diagrams of the composite specimens

    Fig. 6. Original package phase diagrams of the composite specimens

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    Filtered results of different preset defective composite material specimens

    Fig. 7. Filtered results of different preset defective composite material specimens

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    Comparison of speckle suppression index for different filtering methods

    Fig. 8. Comparison of speckle suppression index for different filtering methods

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    Phase unwrapping comparison of different filtering results

    Fig. 9. Phase unwrapping comparison of different filtering results

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    • Table 1. Comparison of speckle suppression index of simulated package phase map filtering results

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      Table 1. Comparison of speckle suppression index of simulated package phase map filtering results

      Filtering methodSine cosine filtering（Method 1）Sine cosine full variation filtering（Method 2）Homomorphic sine cosine filtering（Method 3）Fusion filtering（Method 4）
      Speckle suppression index0.83120.83050.62680.6231

    • Table 2. Speckle suppression index for different filtering methods

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      Table 2. Speckle suppression index for different filtering methods

      Filtering methodSpeckle suppression index
      1_11_21_31_42_12_22_32_43_13_23_33_4
      Method 10.70920.60570.71490.66750.41970.41620.40200.40010.67400.43130.65510.4520
      Method 20.69110.59210.71420.66670.39810.39750.40090.39920.66860.42350.65460.4532
      Method 30.70890.60230.67830.60380.41620.41270.36030.35940.68590.43060.51700.4152
      Method 40.68780.53440.67050.58980.37180.37070.34170.34420.62880.41680.50470.4008

    • Table 3. The number of phase residual points for different filtering results

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      Table 3. The number of phase residual points for different filtering results

      Filtering methodThe number of phase residual points
      1_11_21_31_42_12_22_32_43_13_23_33_4
      Method 1172341110607640415981154479247754844225142364319796781526994647525
      Method 2116047840821270676211746883634047996412519146682822015126
      Method 347164028188869918757168059243752061486996586896053425197765750659419293
      Method 434672309364630353311735845379743425032936215912814
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    Hongxing Zhou, Wanlin Zhou, Haihua Cui, Xiaowei Xu, Bo Wang. Sine Cosine Full Variation Fusion Denoising Method Based on Homomorphic Filtering[J]. Chinese Journal of Lasers, 2024, 51(5): 0504003

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    Paper Information

    Category: Measurement and metrology

    Received: Jun. 20, 2023

    Accepted: Sep. 12, 2023

    Published Online: Mar. 5, 2024

    The Author Email: Cui Haihua (cuihh@nuaa.edu.cn)

    DOI:10.3788/CJL230940

    CSTR:32183.14.CJL230940

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology