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Issue:
Active vision sensing method for weld location by"circle-depth relation" algorithm
Author(s):
XU Pei-quan
,
TANG Xin-hua
,
Yao Shun
,
LU Jian-bo
Pages:
45
-
48
Year:
2006
Issue:
10
Journal:
TRANSACTIONS OF THE CHINA WELDING INSTITUTION
Keyword:
激光锥体投影
;
环形激光轨迹
;
深度恢复
;
焊缝定位
;
Abstract:
提出了三个重要的角度来描述被测焊缝三维信息.在此基础上,构建了基于"半径-深度"算法和空间投影关系的深度恢复模型.研究了GTAW焊接条件下焊缝深度信息与离轴角之间的关系.并对焊缝特征点进行了识别与定位.并用均方误差(MSE)对恢复精度进行了比较.结果表明,利用提出的深度恢复算法,实现了对接焊缝与斜坡焊缝的深度恢复,获得了满意的结果;视觉传感器的焊缝定位精度具有高效率、高精度的特征,具有较理想的发展前景.
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