TY - JOUR
T1 - A Correction Algorithm of QR Code on Cylindrical Surface
AU - Li, Kejing
AU - Meng, Fanwu
AU - Huang, Zhipeng
AU - Wang, Qi
N1 - Publisher Copyright:
© 2019 IOP Publishing Ltd. All rights reserved.
PY - 2019/7/12
Y1 - 2019/7/12
N2 - When capturing a QR code on a cylinder, there may be geometric distortions due to the angle of the camera and the cylindrical deformation, which makes the QR code difficult to recognize. To solve this problem, a correction algorithm for QR codes is proposed in this paper. First, the boundary of the QR code on the cylinder is extracted by a morphological algorithm and geometry calculations. Then, the feature points on the image are accurately located. Next, the standard size of the QR code is determined by using the cross-ratio method in descriptive geometry. Finally, the image is corrected by perspective projection. It is proven that the algorithm can correct the distortion of the cylinder image effectively, and it has the ability to properly identify cylindrical QR codes.
AB - When capturing a QR code on a cylinder, there may be geometric distortions due to the angle of the camera and the cylindrical deformation, which makes the QR code difficult to recognize. To solve this problem, a correction algorithm for QR codes is proposed in this paper. First, the boundary of the QR code on the cylinder is extracted by a morphological algorithm and geometry calculations. Then, the feature points on the image are accurately located. Next, the standard size of the QR code is determined by using the cross-ratio method in descriptive geometry. Finally, the image is corrected by perspective projection. It is proven that the algorithm can correct the distortion of the cylinder image effectively, and it has the ability to properly identify cylindrical QR codes.
UR - http://www.scopus.com/inward/record.url?scp=85070259301&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1237/2/022006
DO - 10.1088/1742-6596/1237/2/022006
M3 - Conference article
AN - SCOPUS:85070259301
SN - 1742-6588
VL - 1237
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 2
M1 - 022006
T2 - 2019 4th International Conference on Intelligent Computing and Signal Processing, ICSP 2019
Y2 - 29 March 2019 through 31 March 2019
ER -