一种字符二维码的设计与实现

Design and implementation of 2D character barcode

基于传统的Data Matrix和QR码的编码原理,借鉴了QR码的字母数字模式并扩展了DataMatrix ECC200的C40模式的编码子集和Text模式的编码字符集,在编码模式、编码规则以及符号结构这些方面都进行了设计和实现,利用Reed-Solomon算法计算纠错码并加入到最终码字流中,最后经过符号化过程形成了新型的字符二维码.该二维码是对传统图像二维码的改进,在符号化的过程中以字符矩阵代替图像.在PC端得实验结果表明,小容量的字符矩阵作为信息传递到移动终端时,使得二维码与移动端的结合在传输上降低了成本,也解决了一些移动端无法支持图像的问题.

Base on the principle of DM code and QR code, a new 2D character barcode is proposed in this paper. The new code is designed based on the alphanumeric scheme in QR code and extends character subset of C40 scheme and character set of Text scheme in Data Matrix ECC200. The encoding and decoding rules, encoding mode selection and symbol structure in this character barcode are designed and implemented. The error correcting code is studied and added into the encoded information. Finally, the encoded data is converted into symbol stream and the new 2D character code is generated. This new 2D barcode is a character matrix instead of the traditional image barcode. The experiments show that the code has very small capacity and can be transmitted as the character message between the mobile terminals. It will reduce the costs of transmission. Meanwhile, it avoids the problem that some mobile terminals cannot support the multimedia messages.