| 复数滤波器在数字全息图处理中的应用 |
| |
| 引用本文： | 陈金飚,李勇.复数滤波器在数字全息图处理中的应用[J].光学与光电技术,2009,7(1):70-73. |
| |
| 作者姓名： | 陈金飚 李勇 |
| |
| 作者单位： | 1. 浙江工业大学信息工程学院,浙江,杭州,310000;浙江省台州学院数学与信息工程学院,浙江,临海,317000
2. 浙江师范大学信息光学研究所,浙江,金华,321004 |
| |
| 摘 要： | 数字全息图在微电路检测、粒度分析、透明场测量等小孔径、小视场对象测量和细胞观测等显微测量方面有着广泛的应用前景。根据离轴数字全息图的频谱特点，提出采用复数滤波器，利用计算机及相关算法对离轴数字全息图进行滤波，消除其零级及共轭像，同时可以得到全息图的相位分布。讨论了复数滤波器的设计方法，给出了实验结果。为数字全息图的压缩、再现和相息图制作提供了方便。
|
| 关 键 词： | 信息光学 数字全息图 计算机制全息图 相息图 数据压缩 |
Application of Complex Filter in Digital Hologram Processing |
| |
| CHEN Jin-biao,LI Yong.Application of Complex Filter in Digital Hologram Processing[J].optics&optoelectronic technology,2009,7(1):70-73. |
| |
| Authors: | CHEN Jin-biao LI Yong |
| |
| Affiliation: | 1 College of Information Engineering, Zhejiang Industrial University, Hangzhou 310000, China 2 School of Mathematics and Information Engineering, Taizhou University, Linhai 317000, China; 3 Institute of Information Optics, Zhejiang Normal University, Jinhua 321004, China) |
| |
| Abstract: | The digital hologram has widespread application prospect in the measurements oi objects with small aperture ano small field of view, such as examination of micro electric circuit, analysis of granularity, measurement of transparent field and the cell observation. A complex filter is proposed to process digital hologram with computer and corresponding algorithm, according to the frequency spectrum characteristics of the off-axis digital hologram. With this method, the zero order and twin image of hologram can be eliminated and the phase distribution of hologram can be obtained at the same time. This method facilitates the compression and reconstruction of digital hologram, and the manufacture of kinoform. The design of complex filter is discussed in this paper and the experimental results are presented as well. |
| |
| Keywords: | information optics digital hologram computer-generated hologram kinoform data compression |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
