The application of line-labeling algorithm to on-line defect detection system for printed-matter

2011 ◽  
Author(s):  
Min Xu ◽  
Wanyou Tang
Keyword(s):  
Defect Detection ◽  
Detection System ◽  
Line Defect ◽  
Labeling Algorithm ◽  
On Line

Research on QR Code Black Line and White Line Defect Detection Algorithm

2014 ◽  
Vol 571-572 ◽  
pp. 764-767 ◽  
Author(s):  
Jian Zhao ◽  
Huan Wei Wang ◽  
Shan Liu ◽  
Na Zhang ◽  
Jian Jia
Keyword(s):  
Defect Detection ◽  
Detection System ◽  
Detection Algorithm ◽  
Test Time ◽  
Qr Code ◽  
Line Defect ◽  
Vertical Projection ◽  
Black Line ◽  
White Line ◽  
On Line

In order to solve the defect detection problems of black line and white line of QR Code. According to the linear properties of defect, this paper puts forward a kind of defect detection algorithm based on Hough Transform and vertical projection. Through the experiment testing, the accuracy of algorithm detection reached 98.57%, the average test time is 38.28ms. This algorithm can be transplanted to other types of QR code and industrial on-line detection system.

On Line Defect Detection Method for Lens Based on Machine Vision

2013 ◽  
Vol 50 (12) ◽  
pp. 121003 ◽  
Author(s):  
姚红兵 Yao Hongbing ◽  
曾祥波 Zeng Xiangbo ◽  
马桂殿 Ma Guidian ◽  
郑学良 Zheng Xueliang ◽  
李亚茹 Li Yaru ◽  
...  
Keyword(s):  
Machine Vision ◽  
Defect Detection ◽  
Detection Method ◽  
Line Defect ◽  
On Line
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