Optics and Precision Engineering, Volume. 17, Issue 3, 506(2009)

Rotation invariant pattern recognition based on amplitude-modulated phase-only filter

WU Dan*, LU Yuan, LING Yong-shun, MA Chao-jie, and LI Yu-bo
Author Affiliations
  • [in Chinese]
  • show less

    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。

    Tools

    Get Citation

    Copy Citation Text

    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): 506

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Apr. 29, 2008

    Accepted: --

    Published Online: Oct. 28, 2009

    The Author Email: Dan WU (ironkite1801@163.com)

    DOI:

    CSTR:32186.14.

    Topics