纠错级别

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    又称:
    
    EC level
    
    ECC level
    
  

  

  
  
One of four levels determining how much damage a QR code can sustain: L (7% recovery), M (15%), Q (25%), H (30%). Higher levels use more codewords for parity, reducing data capacity but increasing resilience to physical damage, dirt, and partial obstruction.


  



  

  
  
  
  

  
  
  
  

    
相关术语

    

      
      Reed-Solomon Code
      
      Interleaving
      
      Error Correction Capacity
      
      Data Capacity
      
      Scan Failure
      
      Custom QR Code
      
      Logo Integration
      
      Artistic QR Code
      
    

  

  
  

  
  
  

    
Related Content

    

      
      
        

          
          
QR Code解析：每个组成部分详解

          
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…are encoded near the finder patterns. This encodes the error correction level (L/M/Q/H) and the mask pattern used. BCH error correction…

        
      
      
      
        

          
          
QR Code版本1-40：大小、容量和选择

          
          QR Code Fundamentals
          
        

        
        
        
…by Version Capacity varies by version, encoding mode , and error correction level . Here are some practical examples at EC Level M: Version…

        
      
      
      
        

          
          
编码模式：数字、字母数字、字节、汉字和ECI

          
          QR Code Fundamentals
          
        

        
        
        
…Capacity : Up to 7,089 characters at Version 40, EC Level L. Alphanumeric Mode (0010) Encodes 45 characters: digits…

        
      
      
      
        

          
          
纠错级别 L、M、Q、H：如何选择

          
          QR Code Fundamentals
          
        

        
        
        
…— but the less space remains for your actual data. At EC Level L, roughly 7% of codewords are correctable. At Level H,…

        
      
      
      
        

          
          
QR Code扫描原理：从摄像头到数据

          
          QR Code Fundamentals
          
        

        
        
        
…The scanner reads the format information to determine the error correction level and mask pattern . For versions 7+, the version…

        
      
      
      
        

          
          
QR Code数据容量：按版本和模式的最大字符数

          
          QR Code Fundamentals
          
        

        
        
        
…QR code capacity helps you choose the right version and error correction level for your data. Capacity varies significantly based on…

        
      
      
      
        

          
          
QR Code vs 条形码：为什么2D获胜

          
          QR Code Fundamentals
          
        

        
        
        
…numeric characters or 2,953 bytes at maximum version and EC level . Scanning Flexibility Barcodes must be scanned in a…

        
      
      
      
        

          
          
QR Codes中的Reed-Solomon纠错

          
          QR Code Fundamentals
          
        

        
        
        
…Corrects the erroneous codewords Practical Implications EC Level EC Codewords (%) Correctable Codewords (%) L ~20% ~7% M…