A neural network method was used to process image of welding pool and the result of detecting the edge of binary image with BP neural network was excellent.
探索了将神经网络用于焊接熔池图像处理的方法，采用BP神经网络对二值化熔池图像进行边缘提取，取得了理想的效果。
The edge extension seriously affects the quality of welding. It is now to adopt down hill forming to reduce the edge extension.
边缘延伸严重影响焊接质量，目前可采用下山成型来减小边缘延伸。
A method for detecting the image edge of V-groove and calculating the welding deviation was presented.
提出了一种V型坡口光纹提取以及计算焊接纠偏量的方法。
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