Patent ID: 11922959
Assignee: ORANGE
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method according to claim 8, wherein the spherical linear interpolation of the current subframe is carried out to obtain the quaternions of the current subframe, as follows:, Q
        
          L
          ,
          interp
        
      
      ⁡
      
        (
        α
        )
      
    
    =
    
      
        
          Q
          
            L
            ,
            
              t
              -
              1
            
          
        
        ⁢
        
          
            
              sin
              ⁡
              
                (
                
                  1
                  -
                  α
                
                )
              
            
            ⁢
            
              Ω
              L
            
          
          
            sin
            ⁢
            
              Ω
              L
            
          
        
      
      +
      
        
          Q
          
            L
            ,
            t
          
        
        ⁢
        
          
            sin
            ⁢
            α
            ⁢
            
              Ω
              L
            
          
          
            sin
            ⁢
            
              Ω
              L
            
          
        
      
    
  

  
    
      
        Q
        
          R
          ,
          interp
        
      
      ⁡
      
        (
        α
        )
      
    
    =
    
      
        
          Q
          
            R
            ,
            
              t
              -
              1
            
          
        
        ⁢
        
          
            
              sin
              ⁡
              
                (
                
                  1
                  -
                  α
                
                )
              
            
            ⁢
            
              Ω
              R
            
          
          
            sin
            ⁢
            
              Ω
              R
            
          
        
      
      +
      
        
          Q
          
            R
            ,
            t
          
        
        ⁢
        
          
            sin
            ⁢
            α
            ⁢
            
              Ω
              R
            
          
          
            sin
            ⁢
            
              Ω
              R, where:, QL,t−1 is one of the quaternions of the previous subframe t−1,, QR,t−1 is the other quaternion of the previous subframe t−1,, Q L,t is one of the quaternions of the current subframe t,, QR,t is the other quaternion of the current subframe t,, ΩL−Arccos (QL,t−1·QL,t); ΩR=Arccos (QR,t−1·QR,t), and α corresponds to an interpolation factor.