Patent ID: 11908239
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 4:
5. The method according to claim 4, wherein the calculating the pose output probability comprises:
calculating the pose output probability of each pose category in the following manner:, Y
    
     P
     j
    
   
   =
   
    
     e
     
      
       w
       
        P
        j
       
      
      ·
       
      
       E
       ⁡
       (
       x
       )
      
     
    
    
     
      
       ∑
        
      
      i
     
     ⁢
     
      e
      
       
        w
        
         P
         i
        
       
       ·
       
        E
        ⁡
        (
        x
        )
       
      
     
    
   
  
  ;
 

where YPj denotes the pose output probability of a jth pose category, i denotes a total quantity of pose identities, E(x) denotes the first image feature, wPj denotes the network weight value of the pose classifier corresponding to the jth pose category, and wPi denotes the network weight value of the pose classifier corresponding to a ith pose category; and
the second loss function is expressed as:

LP=−E[log P(yP|YP)];

where LP denotes the second loss function, E denotes expected value calculation, P(yP|YP) denotes a probability that YP belongs to yP, yP denotes the pose tag, and YP denotes the second identity prediction result.