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光学信息处理包括利用光学手段处理电信号以及处理光学图像信息,也包括对于光学图像的电子学和计算机处理。前面我们介绍了利用光学手段处理电信号以及利用光学,电子学,计算机处理光学图像信息方面的内容,重点放在光学相关处理和像质改善这两种具有代表性并且用途较大的方面。然而这不能说是光学信息处理的全貌。在信息处理中积极地利用光学手段的考虑是激光出现以前五十年代初实现光学的空间滤波开始,但到六十年代激光技术和全息照相技术发展之后才真正确立了光学处理的地位。光学处理首先是在电信号的处理方面得到应用,如光学的相关处理已经在雷达的数据处
Optical information processing includes the processing of electrical signals by optical means and the processing of optical image information, as well as electronics and computer processing of optical images. We have previously described the use of optical methods for the processing of electrical signals and the use of optics, electronics and computers for the processing of optical image information, with a focus on the two most relevant and useful aspects of optical correlation and image quality improvement. However, this can not be said that the whole picture of optical information processing. The consideration of the positive use of optical techniques in information processing started with the introduction of lasers in the early 1950s to begin the optical filtering of the optics, but did not really establish the status of optical processing until the development of laser technology and holography in the 1960s. Optical processing is first applied to the processing of electrical signals, such as optical correlation processing already at radar data