| 利用光折变全息术实现的光学子波变换 |
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| 引用本文： | 康辉,许剑,战元龄,张铁群.利用光折变全息术实现的光学子波变换[J].中国激光,1996,23(8):741-744. |
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| 作者姓名： | 康辉 许剑 战元龄 张铁群 |
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| 作者单位： | 南开大学物理系，南开大学现代光学研究所 |
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| 摘 要： | 提出了用镀膜方法制备Ｈａａｒ模板，用光折变晶体记录子波函数的全息匹配滤波器，在一个无焦成像系统中实现了二维子波变换。给出了简要的理论分析和实验结果。
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| 关 键 词： | 光学子波变换，Haar模板，光折变匹配滤波 |
| 收稿时间： | 1995/8/28 |
Optical Wavelet Transform with Photorefractive Holographic Matched Filtering |
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| Kang Hui,Xu Jian,Zhan Yuanling.Optical Wavelet Transform with Photorefractive Holographic Matched Filtering[J].Chinese Journal of Lasers,1996,23(8):741-744. |
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| Authors: | Kang Hui Xu Jian Zhan Yuanling |
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| Abstract: | An optical implementation of Haar wavelet transform is presented. In this method, Haar wavelet mask is prepared by thin film coating, holographic matched filters of wavelet functions are recorded in a piece of photorefractive crystal, and confocal optical systems are used as a correlator with zoom lens. A brief theoretical analysis and experimental results are given. This optical wavelet transform possesses some evident advantages, such as, simple and real- time operation, high resolution and high light efficiency, and large dada capacity. |
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| Keywords: | optical wavelet transform Haar mask photorefractive holographic matched filter |
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