supported by the Science and Technology Plan Leading Project of Fujian Province,China[grant num-ber 2021Y0005];Water Conservancy Science and Technology Project of Fujian Province,China[grant number MSK202301].
Monitoring the extra-high-voltage transmission line corridor(EHVTLC)in mountains is critical for safe smart-grid operation.However,the transmission lines are so narrow that they are difficult to recognize using multis...