| 改进4f傅里叶光学系统实现平面分形的频谱放大和小波变换 |
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| 引用本文： | 王取泉,李琳,侯勇,熊贵光,田德诚.改进4f傅里叶光学系统实现平面分形的频谱放大和小波变换[J].光学学报,2000,20(2):19-223. |
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| 作者姓名： | 王取泉 李琳 侯勇 熊贵光 田德诚 |
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| 作者单位： | 1. 武汉大学物理系,武汉,430072
2. 武汉大学物理系,武汉,430072;中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 设计了一种改进的４ｆ傅里叶光学信息处理系统，利用该系统实现对频谱面坐标尺度的放在和光学小波变换。其优点是有利于带通滤波器的制作和精确定位。并给出了谢尔宾斯基（Ｓｉｅｒｐｉｎｓｋｉ）分形的傅里叶变换、小波变换及分维测量的实验结果。
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| 关 键 词： | 傅里叶变换 小波变换 光学信息处理系统 |
| 收稿时间： | 1998/7/13 |
Spectrum Enlargement and Wavelet Transform on Planar Fractal by Improved 4f Fourier Optical System |
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| Wang Ququan,Li Lin,Hou Yong,Xiong Guiguang,Tian Decheng.Spectrum Enlargement and Wavelet Transform on Planar Fractal by Improved 4f Fourier Optical System[J].Acta Optica Sinica,2000,20(2):19-223. |
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| Authors: | Wang Ququan Li Lin Hou Yong Xiong Guiguang Tian Decheng |
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| Institution: | Wang Ququan 1) Li Lin 1),2) Hou Yong 1) Xiong Guiguang 1) Tian Decheng 1) 1) Department of Physics,Wuhan University,Wuhan 430072 2) Shanghai Institute of Optics and Fine Mechanics,The Chinese Academy of Sciences,S |
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| Abstract: | An improved 4f Fourier optical system was designed and applied to enlarge the scale of spectrum and realize wavelet transform, which was helpful to the operation of the matched filter on the spectrum plane. The experimental results of Fourier transform and wavelet transform and the fractal dimension on Sierpinski fractal were given. |
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| Keywords: | Fourier transform wavelet transform optical information processing |
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