数字图像处理在光学相关识别中的应用

光学模式识别信息处理容量大,运算速度快,但精度不高,存储不灵活,不易判断控制和分析.联合变换相关器在光学图像相关识别中得到了广泛的应用.为提高联合变换相关器的性能,将数字图像处理技术引入光学相关识别中,主要体现在对联合图像进行预处理以及对联合功率谱的滤波处理.详细阐述了国内外常用的联合图像预处理算法和功率谱滤波算法,并对这些算法在光学相关识别中的应用效果进行了比较研究.

Application of Digital Image Processing in Optical Correlation Recognition

The virtues of optical pattern recognition lies in its high capacity and speed for signal processing, but its judgement, controlling and analysis are difficult because of its poor precision and agility. Joint transform correlator are widely used in optical image correlation recognition. To improve the performance of joint transform correlator, digital image processing technology are used in optical correlation recognition such as the preprocessing for joint image and filtering for power spectrum. Several joint image preprocessing methods and power spectrum filtering algorithms are introduced, their applying effect in joint transform correlator are compared.