QR二维码纠错改进算法

Error Correction Improvement Algorithms of QR Code

二维条码与一维条码相比,其无需依赖数据库,存储信息量大,可表达多种多媒体及文字信息,具有纠错能力。针对传统QR码的纠错能力有限,文中提出了将纠错码LDPC码替换RS码生成新的QR码方案,即利用新的纠错技术生成QR码。通过对纠错码LDPC码的编码原理和性能仿真进行研究,与RS码进行仿真对比。实验结果表明,相比原RS纠错码,新纠错码LDPC码的纠错能力有所提高。

Compared two dimensional barcode with one dimensional barcode, the former does not need to rely on database, and it can store large amount of information and express a variety of multimedia and text information, having error correction ability. For traditional QR code the error correction ability is limited, this paper proposes a solution that error correcting codes LDPC codes will replace RS code to the QR image, it means that use the new correction technology to generate QR code. It gives a study of the error correction code LDPC codes encoding thinking and performance simulation, and then puts it with the RS code simulation contrast. The result shows that compared with the original RS error correcting code, the error correcting capability of the new error correcting LDPC code is improved.