Kim T, Poon T C
Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg 24061, USA.
J Opt Soc Am A Opt Image Sci Vis. 2000 Dec;17(12):2520-8. doi: 10.1364/josaa.17.002520.
Matching of three-dimensional (3-D) objects is achieved by Wigner analysis of the correlation pattern between the phase-only holographic information of a reference object and that of a target object. First, holographic information on the reference object and on the target object is extracted by use of optical scanning holography as a form of electrical signal. This electrical information is then stored in a computer for digital processing. In the digital computer, the correlation between the phase-only information of the hologram of the reference object and that of the target object is calculated and analyzed by use of a Wigner distribution. The Wigner distribution yields a space-frequency map of the correlation pattern that indicates whether the 3-D image of the target object matches that of the reference object. When the 3-D image of the target object matches that of the reference object, the Wigner distribution gives a well-defined line that directly indicates the 3-D location of the matched target object. Optical experiments with digital processing are described to demonstrate the proposed matching technique.
通过对参考物体和目标物体的纯相位全息信息之间的相关模式进行维格纳分析，实现三维（3-D）物体的匹配。首先，利用光学扫描全息术以电信号的形式提取参考物体和目标物体的全息信息。然后将该电信息存储在计算机中进行数字处理。在数字计算机中，利用维格纳分布计算并分析参考物体全息图的纯相位信息与目标物体全息图的纯相位信息之间的相关性。维格纳分布产生相关模式的空间频率图，该图指示目标物体的三维图像是否与参考物体的三维图像匹配。当目标物体的三维图像与参考物体的三维图像匹配时，维格纳分布给出一条明确的线，直接指示匹配的目标物体的三维位置。描述了带有数字处理的光学实验，以证明所提出的匹配技术。
