| 用于焊缝检测的X射线实时图像序列时空域滤波 | |
| 侯润石 ; 都东 ; 邵家鑫 ; 朱新杰 ; HOU Runshi ; DU Dong ; SHAO Jiaxin ; ZHU Xinjie | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | X射线 焊缝缺陷 无损检测 图像匹配 时空域滤波 X-ray weld defect nondestructive testing image registration spatio-temporal filtering TP391.41 |
| 其他题名 | Spatio-temporal filtering of real-time X-ray images for weld inspections |
| 中文摘要 | X射线实时图像处理技术是在线自动检测焊缝缺陷的关键环节。由于原始图像噪声大,严重影响了焊缝缺陷X射线实时自动检测技术的实际应用。该文先对焊缝X射线实时图像序列进行匹配,在此基础上采用扩展的局部线性最小均方差法进行时空域滤波,从而综合利用X射线实时图像序列的时域信息和空域信息。实验结果表明:焊缝X射线实时图像时空域滤波效果明显优于现有的空域滤波和时域滤波,为后续焊缝缺陷检测的图像处理提供了良好条件。; Real-time X-ray image processing is the key to on-line automatic inspection of weld defects.In practical applications,automatic weld inspections are greatly affected by big noise in the original image.This paper presents a method for analyzing real-time X-ray image sequences where the spatio-temporal filtering of the real-time weld images uses an extended local linear minimum mean square error method,so that the spatial and time domain information can be used together.Experimental results show that the denoising effect of the spatio-temporal filter is much better than conventional spatial domain filters and time domain filters.Thus,the image quality is greatly improved,which enhances subsequent image processing for weld defect detection.; 国家自然科学基金资助项目(50875145) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/48199]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 侯润石,都东,邵家鑫,等. 用于焊缝检测的X射线实时图像序列时空域滤波[J],2010, 2010. |
| APA | 侯润石.,都东.,邵家鑫.,朱新杰.,HOU Runshi.,...&ZHU Xinjie.(2010).用于焊缝检测的X射线实时图像序列时空域滤波.. |
| MLA | 侯润石,et al."用于焊缝检测的X射线实时图像序列时空域滤波".(2010). |
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