Patent ID: 11910011
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The image decoding method of claim 1,
wherein based on the intra prediction mode of the current block being derived as the DC intra prediction mode, and the width of the current block being greater than the height of the current block, the DC value is derived based on an equation as follows:, deVal
  =
  
   
    (
    
     
      
       ∑
       
        
         x
         ′
        
        =
        0
       
       
        nTbW
        
         -
         1
        
       
      
      
       
        p
        [
        
         x
         ′
        
        ]
       
       [
       
        
         -
         1
        
        -
        refIdx
       
       ]
      
     
     +
     
      (
      
       nTbW
       ≫
       1
      
      )
     
    
    )
   
   ≫
   
    Log
    ⁢
    2
    ⁢
    
     (
     nTbW
     )
    
   
  
 

where dcVal represent the DC value and nTbW represent the width of the current block.