In this paper, two methods of realizing optical pattern recognition, spatial matched filter correlation and joint transform correlation (JTC), were discussed first with the emphasis on the JTC.
本文首先论述了实现光学模式识别的两种方案，空间匹配滤波相关识别和联合变换相关识别的原理和技术。
This paper discussed the pattern recognition technique based on optical correlation processing.
本文研究基于光学相关处理的图象识别技术。
The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
分数傅里叶变换同时包含了空间域和空间频率域信息，分数相关也可以用于光学图样识别。
By this filter, the shift, scale and rotation invariant optical pattern recognition was realized with a high signal noise ratio of correlation output.
用这种滤波器实现了平移、旋转、尺度三重不变光学图像识别，且有较高的信噪比。
By this filter, the shift, scale and rotation invariant optical pattern recognition was realized with a high signal noise ratio of correlation output.
用这种滤波器实现了平移、旋转、尺度三重不变光学图像识别，且有较高的信噪比。
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