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

Claim 10:
11. The method of claim 9,
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 a high priority sample value that is greater than zero, 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.