一种新型二维条码的生成和识读

A novel two-dimensional bar code generating and reading

提出了一种新型的二维码编码和译码方案,基于Turbo码的编码和软译码方法,对二维条码进行改进,使其具有更强的识读能力.使用(13,15)的Turbo码编码器和矩阵交织器对源信息流进行编码得到一组二进制流,对编码得到的二进制流进行图像生成得到新型的二维条码.对使用后的二维条码图片进行图像采集,然后进行灰度量化得到软比特信息流,对软比特信息流使用矩阵解交织器和Turbo码译码器进行译码得到源信息流.通过这样的方法可以提高二维条码图片的可识别性.运用这种新型的二维条码图片在工业零部件和军事零部件上,可减少因二维条码无法识别产生的经济损失.

A novel encode and decode project, which improves the readability of the two-dimensional bar code, was pro- posed based on Turbo. A Turbo encoder and a matrix interleaver were used to encode the source information to get a set of binary streams. The new two-dimensional bar code picture was procuced by using the algorithm of picture encoding. The image of the used pictures was processed with the algorithm of grey level quantization to get soft-bit information stream information. The soft bit information stream was decoded by using a matrix deinterleaver and a Turbo soft decoder to get the source information. This method improved the recognizability of two-dimensional bar code pictures. The application of the two-dimensional bar code pictures to the industry and military can reduce economic losses.