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Insulator Contamination Grade Recognition Using the Deep Learning of Color Information of Images

Author

Listed:
  • Da Zhang

    (College of Automation & Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

  • Shuailin Chen

    (College of Automation & Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract

To implement the non-contact detection of contamination on insulators, a contamination severity assessment methodology using the deep learning of the colored image information of insulators can be used. For the insulator images taken at the substation site, a mathematical morphology-improved optimal entropic threshold (OET) method is utilized to extract the insulator from the background. By performing feature calculations of insulator images in RGB and HSI color spaces, sixty-six color features are obtained. By fusing the features of the two color spaces using kernel principal component analysis (KPCA), fused features are obtained. The recognition of contamination grades is then accomplished with a deep belief network (DBN) that consists of a three-layered restricted Boltzmann machine. The experimental results of the images taken on-site show that the fused features obtained by the KPCA can fully reflect the contamination state of the insulators. Compared with the identification obtained using RGB or HSI color-space features alone, accuracy is significantly improved, and insulator contamination grades can be effectively identified. The research provides a new method for the accurate, efficient, and non-contact detection of insulator contamination grades.

Suggested Citation

  • Da Zhang & Shuailin Chen, 2021. "Insulator Contamination Grade Recognition Using the Deep Learning of Color Information of Images," Energies, MDPI, vol. 14(20), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6662-:d:656472
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    References listed on IDEAS

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    1. Xinhan Qiao & Zhijin Zhang & Xingliang Jiang & Tian Liang, 2019. "Influence of DC Electric Fields on Pollution of HVDC Composite Insulator Short Samples with Different Environmental Parameters," Energies, MDPI, vol. 12(12), pages 1-12, June.
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    Cited by:

    1. Jiajun Liu & Haokun Lin & Yue Liu & Lei Xiong & Chenjing Li & Tinghu Zhou & Mike Ma, 2023. "Global Relation-Aware-Based Oil Detection Method for Water Surface of Catchment Wells in Hydropower Stations," Sustainability, MDPI, vol. 15(8), pages 1-18, April.

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