QR码图像矫正的应用研究
The application research of QR code image correction
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摘要: 针对摄像头采集QR码图像时,往往出现QR码图像倾斜、畸变等问题,提出了利用QR码特征与图像旋转、图像映射矫正相结合的矫正方法.该方法在对条码图像做常规预处理和行程编码后,通过位置探测图形的位置关系来判断QR码图像倾斜畸变情况,依据倾斜畸变情况选取矫正方法,矫正后直接利用采样网格和统计方法提取信息.经测试,该方法实现简单,可提高QR码的有效识别率;浮点运算量较小,可应用于嵌入式系统.Abstract: When collecting the QR code image,the inclined or geometric distortion often occured.To solve this problem,a correction method combined the QR code feature,image rotation and image maps was proposed.This method,firstly,used the position detection patterns to detect tilt aberration after conventional image pre-processing and run length encoding;Secondly,selected the appropriate method by tilt aberration to correct the image;Thirdly,used grid and statistical methods to extract information and complete the decoding.The results showed that the method was simple and had a high rate of recognition.The computation of floating-point was small,so it could be used in embedded system.
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Key words:
- QR code /
- image preprocessing /
- image correction /
- embedded system
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[1]
中国物品编码中心.二维条码技术与应用[M].北京:中国计量出版社,2007.
-
[2]
肖翔,刘晓明,王云柯.QR码图像的矫正与定位方法研究[J].计算机科学,2007,34(11):217.
-
[3]
付裕,黄雅萍,刘晓强,等.QR码抗倾斜识别方法的研究与应用[J].计算机应用与软件,2011,28(10):100.
-
[4]
邓泽峰,熊有伦,黄小鹏.图像式一维条码识别的三重编码方法[J].光电工程,2010,37(3):133.
-
[5]
张民,郑建立.基于符号特征的QR码识别算法[J].计算机工程,2011,37(4):278.
-
[6]
何伟,黄丹灵,张玲,等.适用于嵌入式系统的QR码识别算法[J].计算机应用,2009,29(3):774.
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