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| 分数相关畸变不变模式识别特性研究 | |
| 引用本文： | 韩利,刘树田,王骐,李润顺,朱邦和.分数相关畸变不变模式识别特性研究[J].光子学报,2000,29(2):131-136. |
| 作者姓名： | 韩利 刘树田 王骐 李润顺 朱邦和 |
| 作者单位： | 1. 哈尔滨工业大学333#,150006 2. 哈尔滨工业大学应用物理系,150006 3. 哈尔滨工业大学航天电子与光电工程系,150006 |
| 基金项目： | 中国科学院资助项目，the Foundation of Ministry of Education，69577006，，， |
| 摘 要： | 本文从理论上分析了分数相关器的分数级次对相关输出面能量分布的影响,利用数值模拟方法,对基于匹配滤波结构的分数相关器畸变不变模式识别特性进行了深入的讨论,并与传统相关器进行了比较.结果表明在畸变不变模式识别中,分数相关器比传统相关器有着更强的畸变不变相关识别能力. |
| 关 键 词： | 光学相干器 畸变不变模式识别 分数傅里叶变换 光学模式识别 |
| 收稿时间： | 1999-09-27 |
| 修稿时间： | 1999-09-27 |
THE PERFORMANCE OF FRACTIONAL CORRELATION APPLIED IN DISTORTION-INVARIANT PATTERN RECOGNITION |
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| Han Li,Wang Qi,Li Runshun,Liu Shutian,Zhu Banghe.THE PERFORMANCE OF FRACTIONAL CORRELATION APPLIED IN DISTORTION-INVARIANT PATTERN RECOGNITION[J].Acta Photonica Sinica,2000,29(2):131-136. | |
| Authors: | Han Li Wang Qi Li Runshun Liu Shutian Zhu Banghe |
| Affiliation: | 1. Harbin Institute of Technology, P. O. Box 333, Harbin 150006;2. Department of Astronautic-Electronic and Optronic Engineering, Harbin Institute of Technology, Harbin 150006 China;3. Department of Physics, Harbin Institute of Technology, Harbin 150006 China |
| Abstract: | In this paper,the impact of the orders of fractional correlator on the energy distribution of the correlation plane is analyzed theoretically,and then the performance of fractional correlator for distortion invariant pattern recognition is discussed deeply by numerical method based on the matched filtering configuration.A comparison is made with the conventional correlation that shows the fractional correlation possess more powerful capability of distortion invariant pattern recognition than that of the conventional correlation. |
| Keywords: | Optical correlator Distortion invariant pattern recognition Fractional Fourier transform Optical pattern recognition |
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