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。
A concept of multi-complex matched filter is introduced to improve the recognition of optical correlation image and the resistance of distortion, and a new way for the recognition is discussed.
为提高光学相关图像识别的准确度和抗畸变能力，引入多重复合匹配滤波器概念，探讨一种新的识别思路。
The optical double correlation is a new technique not using a holographic matched filter.
光学双相关技术是一种不用光学全息匹配滤波器的新技术。
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