| 应用振幅调制纯相位滤波器实现旋转不变识别 |
| |
| 引用本文： | 吴丹,路远,凌永顺,马超杰,李玉波.应用振幅调制纯相位滤波器实现旋转不变识别[J].光学精密工程,2009,17(3). |
| |
| 作者姓名： | 吴丹 路远 凌永顺 马超杰 李玉波 |
| |
| 作者单位： | 李玉波,电子工程学院,安徽省红外与低温等离子体重点实验室,安徽,合肥,230037 |
| |
| 基金项目： | 安徽省红外与低温等离子体重点实验室基金 |
| |
| 摘 要： | 提出了一种基于振幅调制纯相位滤波器(AMPOF)的旋转不变识别新算法.该算法充分利用振幅调制纯相位滤波器区分能力强的优点,结合综合鉴别函数方法,拓展了综合鉴别函数(SDF)在畸变不变模式识别领域的应用.利用各幅训练图像傅里叶变换的振幅和相位信息,逐一构建成子滤波器,并将它们加权求和得到合成滤波器;然后采用迭代算法求解出合理的权重系数.仿真实验结果表明:对于实验采用的目标训练图像和非训练图像,改进算法的相关输出峰值大约提高95%～112%;对于只有少量像素的局部训练图像,改进算法的相关输出峰值大约提高74%.这种优化算法使得振幅匹配和相位匹配更加充分,相关输出增益明显增强,能够一定程度地降低训练量.
|
| 关 键 词： | 旋转不变识别 振幅调制纯相位滤波器 综合鉴别函数 Neon-Raphson迭代算法 |
Rotation invariant pattern recognition based on amplitude-modulated phase-only filter |
| |
| WU Dan,LU Yuan,LING Yong-shun,MA Chao-jie,LI Yu-bo.Rotation invariant pattern recognition based on amplitude-modulated phase-only filter[J].Optics and Precision Engineering,2009,17(3). |
| |
| Authors: | WU Dan LU Yuan LING Yong-shun MA Chao-jie LI Yu-bo |
| |
| Affiliation: | Key Laboratory of Infrared and Low Temperature Plasma of Anhui Province;Electronic Engineering Institute;Hefei 230037;China |
| |
| Abstract: | In order to get good general performance of optical matched filtering correlation recognition, a new algorithm based on Amplitude-modulated Phase-only Filter(AMPOF) is proposed for rotation invariant pattern recognition. The algorithm extends the application of Synthetic Discriminant Function(SDF) to distortion invariant recognition efficiently by utilizing good discrimination capacity of the AMPOF and employs both amplitude and phase information of Fourier transforms of training images to construct a serie... |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
