Weld pool image procession based on the Fourier-DNA low-pass filtering

2020 ◽  
pp. 1-13
Author(s):  
Dukun Ding
Keyword(s):  
Weld Pool ◽  
Low Pass ◽  
Image Procession ◽  
Pool Image

Based on the CO2 Gas Shielded Welding Molten Pool Image Edge Detection Algorithm

2013 ◽  
Vol 437 ◽  
pp. 840-844 ◽  
Author(s):  
Xiao Gang Liu ◽  
Bing Zhao
Keyword(s):  
Edge Detection ◽  
Molten Pool ◽  
High Speed ◽  
Vision System ◽  
Detection Algorithm ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass ◽  
Defect Recognition ◽  
Pool Image

This paper use the passive vision system through high-speed camera collects molten pool images; and then according to the frequency domain characteristics of the weld pool image Butterworth low-pass filter; gradient method for image enhancement obtained after pretreatment. Research Roberts, Sobel, Prewitt, Log, Zerocross, and Canny 6 both traditional differential operator edge detection processing results. Through comparison and analysis of choosing threshold for [0.1, 0. Canny operator can get the ideal molten pool edge character, for subsequent welding molten pool defect recognition provides favorable conditions.

scholarly journals Automatic penetration bead welding technology in horizontal position using weld pool image recognition

2021 ◽  
Vol 39 (4) ◽  
pp. 309-321
Author(s):  
Keita OZAKI ◽  
Naohide FURUKAWA ◽  
Akira OKAMOTO ◽  
Keito ISHIZAKI ◽  
Yuji KIMURA ◽  
...  
Keyword(s):  
Weld Pool ◽  
Image Recognition ◽  
Horizontal Position ◽  
Welding Technology ◽  
Pool Image

Recognition of penetration state in GTAW based on vision transformer using weld pool image

2022 ◽  
Author(s):  
Zhenmin Wang ◽  
Haoyu Chen ◽  
Qiming Zhong ◽  
Sanbao Lin ◽  
Jianwen Wu ◽  
...  
Keyword(s):  
Weld Pool ◽  
Pool Image

Weld pool image acquisition and contour extraction based on arc spectrum and camera quantum efficiency

Optik ◽  
2020 ◽  
Vol 202 ◽  
pp. 163719 ◽  
Author(s):  
Zhuang Zhao ◽  
Bei Sun ◽  
Yi Zhang ◽  
Lianfa Bai ◽  
Jing Han
Keyword(s):  
Quantum Efficiency ◽  
Weld Pool ◽  
Image Acquisition ◽  
Contour Extraction ◽  
Pool Image
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