Research Article

Real-Time Detection of Insulators and Drop Fuses Based on Improved YOLOv4

Algorithm 1: FCM algorithm for anchor boxes selection.
Input: iteration = , number of cluster centres = , error = ,
 initial cluster centres = , initial cluster centres = ,
 fuzzy coefficient = , ground truth = , size of GT = (S, 2)
Output: cluster centres = 
whiledo
   ;
  Calculate the new cluster centres using expression (7) and U;
  Calculate the new objective function using expression (8) and Vn;
  Update the membership matrix Un using expression (9) and IoULOSS;
  if () then
   ;
   break;
  else
   ;
  end if
end while