基于SPIHT图像压缩算法的PDF417二维条码研究

Research on PDF417 2-D Barcode Based on SPIHT Image Compression Algorithm

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。

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.