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Journal of Projectiles, Rockets, Missiles and Guidance >

2014 , Vol. 34 >Issue 6: 150 - 152,156

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2014.06.038

CORRELATION TECHNOLOGY

The Method for Surface Defect Inspection of Coating Based on Mathematical Morphology

  • JIN Yong ,
  • DENG Bowen ,
  • ZHAO Lei ,
  • KONG Xiaoli ,
  • YANG Xiaohui
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  • 1 Key Laboratory of Instrumentation Science & Dynamic Measurement( North University of China), Ministry of Education, Taiyuan 030051, China
    2 Military Representative Office in 845 Factory, Xi'an 710302, China

Received date: 2016-05-14

  Online published: 2025-05-30

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Abstract

The surface defect inspection of coating is an important means to ensure the quality of solid rocket motor charge. As for surface defect images of coating, the combination of top-hat and bottom-hat of mathematical morphology was used to enhance the defect characteristic. The segmentation of defect image was realized by high-low threshold and binary image was obtained. The valid inspection region was achieved by centre-radius calibration, and the size and location of defect were calculated. The results show that the precision of location is less than 0.4 mm, the resolution can reach 0.5 mm, and the precision of size is less than 0.2 mm.

Key words： surface defect inspection; mathematical morphology; high-low threshold

Cite this article

JIN Yong , DENG Bowen , ZHAO Lei , KONG Xiaoli , YANG Xiaohui . The Method for Surface Defect Inspection of Coating Based on Mathematical Morphology[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2014 , 34(6) : 150 -152,156 . DOI: 10.15892/j.cnki.djzdxb.2014.06.038

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