Application of high density to matrix symbology based on quadratic Radon transformation

doi:10.3778/j.issn.1002-8331.2010.29.056

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (29): 192-195.DOI: 10.3778/j.issn.1002-8331.2010.29.056

• 图形、图像、模式识别 • Previous Articles Next Articles

Application of high density to matrix symbology based on quadratic Radon transformation

HU Dong-hong^1，2，MA Qin-wei¹，WANG Hao¹，ZHANG Ling¹，WANG Ying¹

1.School of Physics and Electronic Technology，Hubei University，Wuhan 430062，China
2.Center of Numerical Control，Huazhong University of Science and Technology，Wuhan 430074，China

Received:2009-03-09 Revised:2009-04-27 Online:2010-10-11 Published:2010-10-11
Contact: HU Dong-hong

二次Radon变换在高密度矩阵码识别中的应用

胡东红^1，2，马亲伟¹，汪浩¹，张玲¹，王莹¹

1.湖北大学物理学与电子技术学院，武汉 430062
2.华中科技大学数控中心，武汉 430074

通讯作者: 胡东红

Abstract

Abstract: According to the fundament of Radon transform，a new algorithm based on the quadratic transformation of row-difference and column-difference is proposed.By adopting this algorithm，the module of two-dimensional symbology can be recognized rapidly and accurately，even though the minimum module of the barcode is about only 2.3 pixels in size.This algorithm can be used in the two-dimensional matrix symbology with the level of high density（subpixel），such as QR Code，Data Matrix，and Code93.

Key words: image processing, Radon transform, row-difference and column-difference, two-dimensional symbology

摘要： 根据Radon变换的基本思想方法，提出了一种基于行差列差的二次Radon变换算法，采用该方法可以对矩阵式二维条码即使条码的模块仅占有2.3像素的情况下进行精确快速的识别，该算法主要用于高密度（亚像素级）的矩阵式二维条码QR Code，Data Matrix，Code93等二维条码的识别。

关键词: 图像处理, Radon变换, 行差列差, 二维条码

CLC Number:

TP391

HU Dong-hong^1，2，MA Qin-wei¹，WANG Hao¹，ZHANG Ling¹，WANG Ying¹. Application of high density to matrix symbology based on quadratic Radon transformation[J]. Computer Engineering and Applications, 2010, 46(29): 192-195.

胡东红^1，2，马亲伟¹，汪浩¹，张玲¹，王莹¹. 二次Radon变换在高密度矩阵码识别中的应用[J]. 计算机工程与应用, 2010, 46(29): 192-195.

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Application of high density to matrix symbology based on quadratic Radon transformation

二次Radon变换在高密度矩阵码识别中的应用

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