| 基于双正交小波的光阑小波滤波器 |
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| 引用本文： | 闫红秀,陶纯匡,汪涛,汪雨寒.基于双正交小波的光阑小波滤波器[J].红外,2011,32(4):28-34. |
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| 作者姓名： | 闫红秀 陶纯匡 汪涛 汪雨寒 |
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| 作者单位： | 重庆大学物理学院,重庆,400030 |
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| 摘 要： | 提出了一种应用于4f光学系统的光学小波滤波器的设计与制作方法.结合光学信号的优势与小波变换的优点,利用双正交小波的共轭镜像特性构造出了频域形式的分解和重构滤波器.通过将滤波器放置在4f系统的频谱面上对图像成功实现了二维分解和重构.另外还根据信息处理要求和采样器件的特性,制作了振幅型和位相型两种小波滤波器.这两套滤波器都...
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| 关 键 词： | 光学滤波 小波变换 4f系统 光阑 张量积 |
| 收稿时间： | 3/1/2011 11:57:38 AM |
| 修稿时间： | 3/17/2011 3:08:37 PM |
Optical Wavelet Filter Based on Biorthogonal Wavelets |
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| YAN HongXiu,TAO ChunKuang,WANG Tao and WANG YuHan.Optical Wavelet Filter Based on Biorthogonal Wavelets[J].Infrared,2011,32(4):28-34. |
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| Authors: | YAN HongXiu TAO ChunKuang WANG Tao and WANG YuHan |
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| Affiliation: | College of physics of Chongqing University,College of physics of Chongqing University,College of physics of Chongqing University,College of physics of Chongqing University |
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| Abstract: | A method for designing and constructing optical wavelet filters for 4f optical systems is proposed.
Frequency domain decomposition and reconstruction wavelet filters are constructed according to the advantages of optical
signals and wavelet transform and the conjugate mirror characteristics of biorthogonal wavelets. The filters can implement
two-dimensional decomposition and reconstruction of images successfully when they are placed on the spectrum surfaces of
4f optical systems. In addition, both amplitude wavelet filters and phase wavelet filters constructed according to the
information processing needs and sampling device properties can also decompose and reconstruct images completely. This
method is an innovation in frequency filters for 4f optical systems. It is simulated by using the discrete Bior 2.2 wavelet
in experiment. The experimental result shows that this method is feasible. |
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| Keywords: | optical filtering wavelet transform 4f system optical lens screen tensor product |
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