设计和构建了基于联合变换相关的光电混合图像实时识别系统，该识别系统用电寻址空间光调制器完成数字图像和相干光图像变换，由光学部分高度并行快速完成二维图像的傅里叶变换，平方律探测器CCD完成联合变换功率谱和相关结果的探测。采用VC++.net作为开发语言编制了控制软件，操控空间光调制器和CCD有序工作，实现了目标图像和参考图像的实时相关识别。定义了三个相关参数，可以对相关结果进行定量分析。利用该系统对实景图像进行了识别实验，完成一次识别用时约34 ms左右。
The image recognition experimental system of photoelectric
hybrid based on the real-time joint
transform correlation is designed and built in the paper. The transform of the
digital images to coherent light images are realized by electro addressed
spatial light modulator. The parallel and high
speed processing Fourier transform of two-dimension images is completed by the optical section. The power
spectrum of joint transform and the
correlation results of the image recognition system are detected by the
square-law detector CCD. The control software is
programmed based on VC++.net programming language to control the operations of
the spatial light modulators and the CCD orderly one by one in order and
realize the real-time correlation recognition of the reference image and the
target image. Three correlation parameters are defined to do quantitative analysis of the correlation
results. The recognition experiments of real-world scene images based on the
system are realized and the recognition time is about 34 ms.
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