| 基于最大熵的激光焊接等离子体三维重建 |
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| 引用本文： | 刘金合,谢耀征. 基于最大熵的激光焊接等离子体三维重建[J]. 电焊机, 2007, 37(3): 10-13 |
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| 作者姓名： | 刘金合 谢耀征 |
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| 作者单位： | 西北工业大学,材料学院,陕西,西安,710072;西北工业大学,材料学院,陕西,西安,710072 |
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| 摘 要： | 利用高速摄影机同时记录等离子体的主视图和侧视图,采用区域生长方法提取图像上的主视图和侧视图,将所得图像作为计算机层析的投影进行处理,最后采用最大熵算法重建出等离子体的三维图像.重建结果显示:等离子体对激光功率的屏蔽的周期性变化导致等离子体积随着时间作周期性变化.
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| 关 键 词： | 激光 等离子体 三维重建 最大熵 高速摄影 matlab |
| 文章编号： | 1001-2303(2007)03-0010-04 |
| 修稿时间： | 2006-11-19 |
3D reconstruction of plasma in laser welding based on ME(maximum entropy) |
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| LIU Jin-he,XIE Yao-zheng. 3D reconstruction of plasma in laser welding based on ME(maximum entropy)[J]. Electric Welding Machine, 2007, 37(3): 10-13 |
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| Authors: | LIU Jin-he XIE Yao-zheng |
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| Abstract: | The front view and the side elevation are taken in one photo by high-speed photography at once.The two view are divided by region grow method,and processed as the layer of CT(computer tomography) .The 3D image are reconstructed based on ME(maximum entropy) .This conclusion is drawed that the volume of plasma are changed periodically because the plasma shielding the laser are periodic. |
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| Keywords: | laser plasma 3D reconstruction ME(maximum entropy) high speed photography matlab |
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