[4] WANG S, LV F, LIU Y. Estimation of discharge magnitude of composite insulator surface corona discharge based on ultraviolet imaging method[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 1328 2014, 21(4): 1697-1704.
[5] ZHANG Z, WEI Z, ZHANG D, et al. Comparison of different characteristic parameters acquired by UV imager in detecting corona discharge[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(3): 1597-1604.
[6] LIN Y, CHEN Y, ZHOU J, et al. Gray Standard deviation based ultraviolet image segmentation for electrical equipment[C]//Journal of Physics: Conference Series, 2019, 1169(1): 012051.
[12] Ronneberger O, Fischer P, Brox T. U-net: Convolutional networks for biomedical image segmentation[C]//Medical Image Computing and Computer-Assisted Intervention–MICCAI , 2015: 234-241
[13] Otsu N. A threshold selection method from gray-level Histograms[J]. IEEE Transactions on Systems Man & Cybernetics, 2007, 9(1): 62-66.
[14] Kapur J, Sahoo P K, Wong A. A new method for gray-level picture thresholding using the entropy of the histogram[J]. Computer Vision, Graphics, and Image Processing, 1985, 29(3): 273-285.
[15] Kittler J, Illingworth J. Minimum error thresholding[J]. Pattern Recognition, 1986, 19(1): 41-47.
[16] XU X, XU S, JIN L, et.al. Characteristic analysis of Otsu threshold and its applications[J]. Pattern Recognition Letters, 2011, 32(7): 956-961.