节点文献
Radon变换在二维条码图像识别中的应用
The Application of Radon Transform in 2D Barcode Image Recognition
【摘要】 分析了DataMatrix(简称DM)二维条码的符号结构特点,根据Radon变换的基本思想方法,提出一种对识别无间断的连续线段很有效的算法和一种对识别“铁路线”很有效的算法.运用这两种算法,在二维条码图像最小模块仅为2.7像素的情况下、在图像轻微弯曲的情况下,可以对二维条码图像中的黑边和铁路线快速准确地定位.该算法可以应用于QR Code、DataMatrix、Code93和龙贝码等二维条码的图像识别.
【Abstract】 The symbology of the 2D barcode DataMatrix was introduced.According to the fundament of Radon transformation,an algorithm efficient in recognizing the consecutive line segment and an algorithm efficient in recognizing the "railway" are proposed.By these algorithms,the black line segment and the "railway" in 2D barcode can be recognized rapidly and accurately,even though the minimum module of the barcode is about only 2.7 pixels in size.These algorithms can be used in QR Code,DataMatrix,Code93 and lpcode image recognition.
【Key words】 image processing； pattern recognition； 2D barcode； Radon transform；
- 【文献出处】 武汉大学学报(理学版) ,Wuhan University Journal(Natural Science Edition) , 编辑部邮箱 ,2005年05期
- 【分类号】TP391.41;
- 【被引频次】41
- 【下载频次】730