| 基于SPIHT图像压缩算法的PDF417二维条码研究 |
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| 引用本文： | 揭丽群,赵卫东,王志成.基于SPIHT图像压缩算法的PDF417二维条码研究[J].计算机与现代化,2010(12):44-47. |
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| 作者姓名： | 揭丽群 赵卫东 王志成 |
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| 作者单位： | [1]同济大学企业数字化技术教育部工程研究中心,上海200092 [2]同济大学CAD研究中心,上海201804 |
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| 摘 要： | 介绍PDF417二维条码的基本概念和编码方法,针对PDF417条码存储空间有限的问题,提出将SPIHT图像压缩算法结合PDF417条码技术,将人脸图像编码到二维条码中。研究表明,通过此方法可以有效地保证在指定字节数情况下达到高质量的压缩图像,应用到证书中可以解决证书的防伪保密问题。
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| 关 键 词： | 二维条码 图像压缩 防伪 |
Research on PDF417 2-D Barcode Based on SPIHT Image Compression Algorithm |
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| JIE Li-qun,ZHAO Wei-dong,WANG Zhi-cheng.Research on PDF417 2-D Barcode Based on SPIHT Image Compression Algorithm[J].Computer and Modernization,2010(12):44-47. |
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| Authors: | JIE Li-qun ZHAO Wei-dong WANG Zhi-cheng |
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| Affiliation: | 1.Engineering Research Center for Enterprise Digtal Technology,Ministry of Education,Tongji University,Shanghai 200092,China; 2.Research Center for CAD,Tongji University,Shanghai 201804,China) |
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| Abstract: | This paper introduces the basic concept and the encoding method of PDF417 barcode,and proposes that applying the SPIHT image compression algorithm to the PDF417 barcode technology and then encoding the face image to a two-dimensional barcode to solve the problem of the limited storage space of PDF barcode.The research shows that,with this method,the face image can be compressed in high quality within the pre-specified byte count,and will be possible to solve the security problem of certificate. |
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| Keywords: | two-dimensional barcode image compression anti-forgery |
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