Patent ID: 11940348
Assignee: HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The method for detecting the centroid of the complementary single pixel according to claim 1, wherein a computational formula that the centroid (xc, yc) is solved by the centroid solving algorithm is as follows:, x
      c
     
     =
     
      
       
        ∑
        
         x
         ,
         y
        
       
       
        
         f
         ⁡
         (
         
          x
          ,
          y
         
         )
        
        ⁢
        x
       
      
      
       
        ∑
        
         x
         ,
         y
        
       
       
        f
        ⁡
        (
        
         x
         ,
         y
        
        )
       
      
     
    
   
   
    
     (
     5
     ), y
      c
     
     =
     
      
       
        ∑
        
         x
         ,
         y
        
       
       
        
         f
         ⁡
         (
         
          x
          ,
          y
         
         )
        
        ⁢
        y
       
      
      
       
        ∑
        
         x
         ,
         y
        
       
       
        f
        ⁡
        (
        
         x
         ,
         y
        
        )
       
      
     
    
   
   
    
     (
     6
     )
    
   
  
 

by combining formulas (3) and (4) with formulas (5) and (6), a centroid position parameter of the target object is represented as:, x
     =
     
      
       I
       
        1
        ,
        1
       
       0
      
      
       
        I
        
         1
         ,
         1
        
        0
       
       +
       
        I
        
         2
         ,
         1
        
        1
       
      
     
    
   
   
    
     (
     7
     ), y
     =
     
      
       
        I
        
         1
         ,
         2
        
        0
       
       
        
         I
         
          1
          ,
          2
         
         0
        
        +
        
         I
         
          2
          ,
          2
         
         1
        
       
      
      .
     
    
   
   
    
     (
     8
     )