Patent ID: 11936898
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. The method of claim 15, wherein the high priority sample value is greater than 0, and
wherein the inverse mapping the mapped reconstructed sample comprises calculating the unmapped reconstructed sample as:, g
   ⁡
   (
   
    x
    ′
   
   )
  
  =
  
   {
   
    
     
      i
     
     
      
       0
       ≤
       
        x
        ′
       
       ≤
       
        δ
        +
        c
       
      
     
    
    
     
      
       Clip
       (
       
        0
        ,
        maxVal
        ,
        
         
          x
          ′
         
         -
         δ
         +
         c
         -
         1
        
       
       )
      
     
     
      
       
        δ
        +
        c
       
       <
       
        x
        ′
       
       ≤
       
        i
        +
        δ
        -
        c
       
      
     
    
    
     
      
       Clip
       (
       
        0
        ,
        maxVal
        ,
        
         
          x
          ′
         
         -
         δ
         +
         c
        
       
       )
      
     
     
      
       
        i
        +
        δ
        -
        c
       
       <
       
        x
        ′
       
       <
       maxVal
      
     
    
    
     
      
       x
       ′
      
     
     
      
       
        x
        ′
       
       =
       maxValue
      
     
    
   
  
 

where g(x′) represents the unmapped reconstructed sample, i is the high priority sample value, x′ represents the mapped reconstructed sample, δ represents the maximum allowed error, c is a constant non-negative integer that is less than δ, maxVal represents a maximum value of the original sample, Clip(0,maxVal,x′−δ+c) represents a clipping function that limits a value of x′−δ+c to a minimum of 0 and a maximum of maxVal, and Clip(0, maxVal, x′−δ+c−1) represents a clipping function that limits a value of x′−δ+c−1 to a minimum of 0 and a maximum of maxVal.