Robust Crack Defect Detection in Inhomogeneously Textured Surface of Near Infrared Images
Robust crack defect detection in solar cells has been challenging because of the inhomogeneously textured surface,low contrast between crack defect and background,the diversity of crack types,and so on.To overcome these challenges,this paper presents a new robust crack defect detection scheme for multicrystalline solar cells.Firstly,a steerable evidence filter is designed to process EL image to obtain the response map,which enhances the contrast between crack and background and provides evidence for the presence of crack defect.Secondly,complete crack extraction from the response map is employed.Finally,the complete crack can be located in the inspection image by the crack skeleton extraction.Experimental results on defective and defect-free EL images show that the proposed scheme is robust,and various cracks can be effectively detected,which outperforms the previous methods.
Crack defect Inhomogeneous texture Steerable evidence filter
Haiyong Chen Huifang Zhao Da Han Haowei Yan Xiaofang Zhang Kun Liu
School of Artificial Intelligence,Hebei University of Technology,Tianjin 300130,China
国际会议
广州
英文
511-523
2018-11-23（万方平台首次上网日期，不代表论文的发表时间）