不锈钢薄板激光焊焊缝缺陷检测与识别

Hot Working Technology(2021)

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Abstract
不锈钢薄板激光焊焊缝成形尺寸细微,焊接速度快、节拍快,人工进行焊缝缺陷检测已不适合,因此焊缝缺陷检测的自动化是必然趋势.构建了一套激光焊焊缝数字成像(DR)检测系统,并在DR检测图像的基础上研究了焊缝缺陷的自动检测与识别算法.首先设计焊缝和焊接缺陷检测系统,可靠地将焊缝和焊接缺陷从工件背景中分割出来,基于此又设计了焊接缺陷特征提取算法和缺陷类型识别算法,通过二叉树和逻辑回归分类可以将激光焊焊缝中的常见缺陷识别出来,识别正确率达到了工程化水平.
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