提出一种用非相干光系统识别彩色图像的方法。 将彩色图像分解成三个单色像处理, 设计一可实现的仅相位型光学传递函数, 对其进行带通优化, 从而提高信噪比并使相关峰锐化。 通过一对滤波器来合成该光学传递函数。 获得了彩色图像相关识别的实验结果。

A method of recognition of color image under incoherent optical system is proposed. A color image is decomposed into three monochromatic images to be processed, then a realizable phase-only optical transfer function (OTF) is designed. The passband of this OTF is optimized to increase the signal to noise ratio (SNR) and to yield a sharp correlation peak. This OTF can be synthesized by a couple of filters. The experimental results on color image recognition are presented.