| 基于OPG理论的自适应滤波器设计及其在图像处理中的应用 |
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| 引用本文： | 彭冬亮,吴铁军. 基于OPG理论的自适应滤波器设计及其在图像处理中的应用[J]. 电子学报, 2004, 32(1): 118-120 |
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| 作者姓名： | 彭冬亮 吴铁军 |
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| 作者单位： | 浙江大学智能系统与决策研究所,浙江大学工业控制技术国家重点实验室,浙江杭州 310027 |
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| 摘 要： | 本文基于单参数变换群理论提出了一种新的自适应滤波器的设计方法,并且给出了滤波器与图象卷积的算法.参数变化后的滤波器的可以表示为事先给定的一组基本滤波器的线性组合.这种滤波器在不同方向、尺度和位置上和图像进行卷积时,可以显著提高运算效率.最后给出了一个图像边缘提取的算例,表明这种方法是有效的.
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| 关 键 词： | 自适应滤波器 单参数变换群 可控制函数 边缘检测 |
| 文章编号： | 0372-2112(2004)01-0118-03 |
| 收稿时间： | 2002-03-25 |
OPG Based Adaptive Filter Design and Its Application in Image Processing |
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| PENG Dong-liang,WU Tie-jun. OPG Based Adaptive Filter Design and Its Application in Image Processing[J]. Acta Electronica Sinica, 2004, 32(1): 118-120 |
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| Authors: | PENG Dong-liang WU Tie-jun |
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| Affiliation: | Institute of Intelligent System and Decision Making,Zhejiang University; National Laboratory of Industrial Control Technology,Hangzhou Zhejiang 310027,China |
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| Abstract: | A novel adaptive filter design technique is proposed in this paper according the theory of One-parameter Transformation Group.An algorithm for the convolution of this filter and an image is also given.The filter,after this parameter changes,can be represented in form of the linear combination of a fixed,finite set of basis filters.When this kind of filters are convoluted with a image in different orientations,positions and scales,the computing efficiency is improved remarkably.An example for edge-detection is given to demonstrate validity of this method. |
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| Keywords: | adaptive filter one-parameter transformation group steerable functions edge-detection |
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