用于立体数字信息恢复的DFT域三维滤波器设计  

Design of 3-dimensional filter in DFT domain to restore stereo digital information

作　　者：黄翔东[1] 王兆华[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《中国体视学与图像分析》2008年第1期1-5,共5页Chinese Journal of Stereology and Image Analysis

基　　金：国家自然科学基金与民航联合基金项目(No.60776815)

摘　　要：为有效地重现立体数字信息,本文提出一种离散傅立叶变换DFT(Discrete Fourier Trans-form)域三维滤波器的设计方法。此方法充分考虑了各种三维频率分布和时域分布的因素,把DFT、全相位信号处理、频谱分析等性质结合了起来,构造出性能较好的三维滤波器。弥补了部分现有的用二维方法解决三维滤波问题的不足,具有理论价值和应用前景。To restore stereo digital information effectively, this paper presents a method to design a novel 3-dimensional filter. With all sorts of 3-D factors in frequency domain and time domain being taken into account, an excellent 3-D filter can be constructed by synthesizing the properties of DFT, all-phase signal processing, spectral analysis etc. Moreover, the proposed algorithm is of highly application value for it overcomes parts of the drawbacks in utilizing 2-D method to solve 3-D filtering problems.

关 键 词：三维滤波器 立体数字信息 全相位 DFT 

分 类 号：TN713[电子电信—电路与系统]