| 抗噪性联合变换相关器 |
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| 引用本文： | 路烁,刘文耀,张以谟,王金涛,陈晓晴.抗噪性联合变换相关器[J].光电工程,2001,28(1):50-52,61. |
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| 作者姓名： | 路烁 刘文耀 张以谟 王金涛 陈晓晴 |
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| 作者单位： | 1. 天津大学精密仪器与光电子工程学院，天津 300072; 教育部光电信息技术科学重点实验室， 天津 300072
2. 教育部光电信息技术科学重点实验室， 天津 300072 |
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| 基金项目： | 国家高技术 863-307主题 !(863-30 7-0 7-0 2 (0 5) )资助项目，北京大学视觉与听觉信息处理实验室基金资助项目 |
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| 摘 要： | 我们对联合变换相关器的输入图象进行Roberts梯度处理，同时对参考图象采取相移技术，并在频域中将功率谱二值化。与传统的联合变换相关器（CJTC）相比，新型的联合变换相关器（NJTC）消除了功率谱的直流分量，锐化了相关峰强度，提高了衍射效率和识别能力，同时增强了联合变换相关器的抗噪性能。用计算机模拟出预言结果。
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| 关 键 词： | 光学信息处理 联合变换相关器 抗噪性 |
| 文章编号： | 1003-501X(2001)01-0050-03 |
A Joint Transform Correlator with Noise Immunity |
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| LU Shuo,LIU Wen yao,ZHANG Yi mo,WANG Jin tao,CHEN Xiao qing.A Joint Transform Correlator with Noise Immunity[J].Opto-Electronic Engineering,2001,28(1):50-52,61. |
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| Authors: | LU Shuo LIU Wen yao ZHANG Yi mo WANG Jin tao CHEN Xiao qing |
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| Abstract: | Roberts gradient processing is carried out for the input image of joint transform correlator, and at the same time phase shift technique is applied to the reference image and binaryzation is implemented in power spectrum in the frequency domain. Compared with the common joint transform correlator, the new joint transform correlator has eliminated the direct current component of the power spectrum, sharpened correlation peak intensity and improved diffraction efficiency and recognition capacity. The noise immunity of the joint transform correlator has also been intensified. The predicted results are simulated by a computer in the paper. |
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| Keywords: | Joint transform correlator Image processing Phase shift |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
