利用频域外插法改善体全息存储图象的质量  

The Quality Improvement on the Image of Volume Holographic Memories with the Extrapolation in Frequency Domain

作　　者：唐斌[1] 陶世荃 沈兰荪[1] 

机构地区：[1]北京工业大学电子工程系,北京工业大学应用物理系

出　　处：《北京工业大学学报》1996年第4期144-150,共7页Journal of Beijing University of Technology

基　　金：国防科技预研基金

摘　　要：从频域抽样理论出发，研究了空间有限图象的频谱中低频分量和高频分量之间的关系，讨论了由低频分量恢复高频分量的频域外插方法应用于体全息存储的可能性，并给出了计算机模拟的结果。The relation between low-spatial-frequency components and high-sptial-frequency components, of spatial-limited image was studied, based on the sampling theorem in frequency domain. It was demonstrated by the result of computer simulation. The possibility of utilizing extrapolation in frequency domain, from low-spatial-frequency components of spatial-limited image to extract high-spatial-frequency components, for volume holographic memories is discussed.

关 键 词：图象质量 体全息存储 频域外插法 光存储器 

分 类 号：TP333.42[自动化与计算机技术—计算机系统结构]