【摘要】 为了研究3层物体的压缩全息分层再现效果,进行了层析再现多层样本的实验,并且将压缩全息再现与传统反衍射重建方法进行了对比分析。采用了频域减采样的方法来实现全息图的稀疏化,将数据压缩到原始全息图的25%。通过仿真实验,发现采用压缩全息再现的物像和模拟样本的相关系数达到0.64。基于4f光学系统建立了实验系统,实现了3层物体的压缩全息再现,可以使所重建的物像更加清晰以及有效去除背景噪声信号。更多还原

【Abstract】 In order to study the reconstruction effect of three-layer samples using compressive holography,tomography experiment is proposed and compressive holography and traditional back-propagation digital holography is analyzed.The frequency domain sample reduction to make hologram sparse is used,remaining 25% data of the original hologram.Through the simulation experiment,that the correlation coefficient of the reconstructed image by compressive holography and simulation sample can reach 0.64.4 f optical system is introduced,and it separates three-layer samples apart with compressive holography method which can make reconstructed images much clearer and suppress background noise.更多还原