CAJ | 학술논문

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。
침대섭상두채집QR마도상시，왕왕출현QR마도상경사、기변등문제，제출료이용QR마특정여도상선전、도상영사교정상결합적교정방법。해방법재대조마도상주상규예처리화행정편마후，통과위치탐측도형적위치관계래판단QR마도상경사기변정황，의거경사기변정황선취교정방법，교정후직접이용채양망격화통계방법제취신식。경측시，해방법실현간단，가제고QR마적유효식별솔；부점운산량교소，가응용우감입식계통。
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 pro-posed.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 deco-ding.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.