文章摘要
贾丹,尤飞,张庆立.QR码直接扩容技术[J].包装工程,2018,39(1):190-195.
JIA Dan,YOU Fei,ZHANG Qing-li.Technology to Enlarge Storage Capacity of QR Code[J].Packaging Engineering,2018,39(1):190-195.
QR码直接扩容技术
Technology to Enlarge Storage Capacity of QR Code
投稿时间:2017-04-07  修订日期:2018-01-10
DOI:
中文关键词: 彩色QR码  HSV颜色空间  三元组配色模型  K-Means聚类算法
英文关键词: color QR code  HSV color model  three-tuple color matching model  K-Means clustering algorithm
基金项目:上海理工大学博士启动基金(1D-13-309-007)
作者单位
贾丹 上海理工大学上海 200093 
尤飞 上海理工大学上海 200093 
张庆立 上海理工大学上海 200093 
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中文摘要:
      目的 针对黑白QR码信息嵌入能力不足以及大容量信息存储的需求,提出一种QR码直接扩容技术。方法 黑白QR码只有2种颜色的编码模块,每个编码模块存储1比特数据;彩色QR码拥有2n种颜色的编码模块,每个编码模块存储n比特数据,使QR码存储容量直接扩增n倍。基于HSV颜色空间模型,采用三元组配色模型进行编码模块的配色,以降低彩色编码模块间的混叠效应。采用图像对比度增强和K-Means聚类算法处理彩色编码模块的颜色偏离。结果 通过对拥有16种颜色编码模块的彩色QR码数据存储性能进行分析可知,存储相同容量的数据信息,彩色QR码比黑白QR码的版本更低,QR码符号更小,实现了QR码存储容量的直接扩增。结论 采用QR码直接扩容技术可实现存储容量的倍数扩增;采用K-Means聚类算法可大幅度降低彩色QR码编码模块之间的混叠效应,显著提高彩色QR码译码的正确率。
英文摘要:
      The work aims to propose a technology to enlarged storage capacity of QR code, with respect to the deficient information embedding ability of black and white QR code and the demand of large-capacity information storage. Black and white QR code only had two encoded modules which were black and white, and each module stored 1 bit of data. While color QR code had 2n color encoded modules, and each encoded module could store N bits of data. In such case, the storage capacity of color QR code was directly expended by n times. Based on HSV color space model, three-tuple color matching model was applied in color matching of encoded modules to reduce the aliasing effect between color encoded modules. Image contrast enhancement algorithm and K-Means clustering algorithm were used to deal with color deviation of color encoded modules. The data storage performance of color QR code with 16 colors of encoded modules was analyzed. Based on the analysis, when a certain amount of data was stored, the version of color QR code was lower than that of the black and white QR code, and its symbol was smaller. By doing so, the storage capacity of QR code was directly expanded. With QR code direct expansion technology, the storage capacity multiplier can be achieved; with K-Means clustering algorithm, the aliasing effect between the encoded modules of QR code can be greatly reduced, and the decoding accuracy of color QR codes is significantly improved.
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