用叠加输入方式实现实时高效JTC  

Realizing Real-time High-efficiency JTC with Superimposition Input

作　　者：秦玉文[1] 葛宝臻[1] 张以谟[1] 黄战华[1] 张宏[1] 翁兆恒[1] 廖江红[1] 

机构地区：[1]天津大学现代光学仪器研究所,中国科学院长春光机所

出　　处：《光电子．激光》1995年第6期328-333,共6页Journal of Optoelectronics·Laser

基　　金：国家高技术计划资助;国家教委博士点基金

摘　　要：提出利用叠加方式输入参考图象与目标图象实现实时高效联合变换相关的方案。利用计算机控制把输入面分为大小相等的四个窗口。在每个窗口写入叠加在一起的参考与目标图象，利用光学波阵面分割复用器把对应不同窗口的读出光学信息在空间域与频率域上分开，使其在第一个傅里叶透镜的焦平面上形成联合功率谱阵列，在输出面上可以实时地获得增强了的相关信号，文中给出了系统原理和实验结果。A technique that use superimposition image to input reference and object images to realize high-efffciency joint transform correlation is proposed in this paper.The input plane of the system is divded into four equal parts by computer, and in every part the reference and the object images are displayed by superimposition mode.An optical wavefront-division multiplexer is ussed in the proposed system to separt the readout optical information of different parts from each other in space and frequency domains, and to form a joint power spectral array at the focal plane of the first Fourier transform lens. As a result., enhanced optical correlation signal is obtained at the output plane The Principle of the system and the experimental results have been given .

关 键 词：联合变换相关 叠加输入方式 JTC 信息光学 

分 类 号：O438[机械工程—光学工程]