| 用DSP实现焊缝图像处理算法中的小波变换算法 |
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| 引用本文： | 黄军芬,蒋力培,邹勇,殷树言.用DSP实现焊缝图像处理算法中的小波变换算法[J].焊接学报,2005,26(12):77-80. |
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| 作者姓名： | 黄军芬 蒋力培 邹勇 殷树言 |
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| 作者单位： | 北京石油化工学院,光机电重点实验室,102617;北京工业大学,材料科学与工程学院,100022 |
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| 摘 要： | 利用模板匹配算法获取焊缝中心位置。该算法首先通过二维小波变换得到焊缝的模板，再将该模板在后续焊缝图像中平移，计算模扳平移到各位置的互相关系数，取互相关系数最大值对应的列为被测图像的焊缝中心位置。基于DSP在数字信号处理中的优势，使用TDS642EVM实现焊缝识别图像处理算法。文中分析了二维小波变换算法的原理，开发了用DSP（数字信号处理器）实现小波变换算法的程序，最后列出了用TDS642EVM处理管道焊缝图像实例。
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| 关 键 词： | 焊缝图像处理 二维小波变换 数字信号处理器 |
| 文章编号： | 0253-360X（2005）12-77-04 |
| 收稿时间： | 03 7 2005 12:00AM |
| 修稿时间： | 2005-03-07 |
Wavelet transform algorithm of seam image process with DSP |
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| HUANG Jun-fen,JIANG Li-pei,ZOU Yong and YIN Shu-yan.Wavelet transform algorithm of seam image process with DSP[J].Transactions of The China Welding Institution,2005,26(12):77-80. |
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| Authors: | HUANG Jun-fen JIANG Li-pei ZOU Yong and YIN Shu-yan |
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| Affiliation: | HUANG Jun-fen~1,JIANG Li-pei~1,ZOU Yong~1,YIN Shu-yan~2 |
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| Abstract: | The position of seam center was got with template match algorithm. First seam template was acquired through wavelet transform, then the template was shifted in subsequent seam image and correlation coefficients were calculated accordingly, the column corresponding to the max correlation coefficient was taken as seam center position of subsequent seam image. The seam image is processed with TDS642EVM since DSP has advantages in digital signal processing. Principle of 2-D wavelet transform algorithm was analyzed, then wavelet transform programs on DSP are developed. At last, example of processing pipeline seam image with TDS642EVM was given. |
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| Keywords: | seam image process 2D wavelet transform DSP |
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