Chenghua Fan, Qunjing Wang, Xinyuan Cao, Bingbing Chen, Qi Qi. Defect Detection Method for Solar Cell Based on Signal Catastrophe-Points Correction[J]. Laser & Optoelectronics Progress, 2020, 57(6): 061101
- Laser & Optoelectronics Progress
- Vol. 57, Issue 6, 061101 (2020)
Fig. 1. Principle of detecting the signal catastrophe-points with wavelet transform
Fig. 2. Defect images of solar cells. (a) Scratch; (b) scratch and spot; (c) abrasion
Fig. 3. Flow chart of algorithm
Fig. 4. Capture of the signal catastrophe-points
Fig. 5. Correction of the signal catastrophe-points
Fig. 6. Calibration process of column signal from defect images. (a) Scratch in the 200th column; (b) scratch and spot in the 222nd column;(c) abrasion in the 80th column
Fig. 7. Background corresponding to the defect images. (a) Scratch; (b) scratch and spot; (c) abrasion
Fig. 8. Defect images and processing results. (a) Scratch; (b) scratch and spot; (c) abrasion
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20