fourier hologram meaning in English
傅里叶全息图
Examples
- The main contents are : ( 1 ) the recording and numerical reconstruction of lensless fourier hologram are analyzed by spherical wave theory
主要内容包括： ( 1 )用球面波理论分析了无透镜傅里叶变换全息图的记录和再现过程。 - The lensless fourier hologram of object by using selfoc lens is obtained , and the clear image is numerical reconstructed
通过自聚焦透镜对物体成像，记录并再现了物体的全息图，得到了较满意的再现像，为进一步利用光纤传像奠定了基础。 - In order to investigate the phenomenon that holograms tend to be deteriorated on baing recorded in photopolymers with shrinkage , a fourier hologram is taken with slant gratings formed by the reference beam and object beams of different space - frequency
摘要为了分析光致聚合材料记录的谱面全息图在再现过程中发生“擦除”现象，将谱面全息图看作由不同角谱的物光与参考光在光致聚合材料内形成的不同倾斜角度的光栅总和。 - Furthermore , three fourier storage schemes were proposed for practical anti - counterfeiting : ( 1 ) store black - white digital images with hidden information made by image coding method , ( 2 ) store several images on the same spot with reference beams of different directions ( peristeophic multiplexing ) , ( 3 ) store a serious of given images recorded closely ( space multiplexing ) . three different fourier holograms were recorded on photoresist plates following the above three schemes using the optimized recording conditions obtained in the first part of this study work . the reconstructed images form the holograms showed some special anti - counterfeit effects
此外，本课题还研究了傅里叶全息存储在防伪上的实际应用，提出了三种防伪存储方案： ( 1 )运用图像编码方案，存储了具有隐藏信息的编码黑白二值图像； ( 2 )运用旋转复用方案，在同一存储点用不同方向的参考光存储了多幅图像； ( 3 )运用空间复用技术，在一定区域内紧靠着记录一系列特定图像的傅里叶全息图。