Numerical correction of splicing dislocation between sub-holograms in synthetic aperture digital holography using convolution approach

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（9）
• 页码范围: 22-24
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201210.090901

摘要

We propose a new correction method for the splicing dislocation of sub-holograms in synthetic aperture digital holography.By adjusting the splicing distances between sub-holograms during the numerical reconstruction process using the convolution approach,the influence of non-paraxial aberration for the quality of the synthetic reconstructed image is avoided and synthetic reconstructed images corresponding to different splicing distances are obtained.Then,the accurate splicing distance between sub-holograms is determined by evaluating the quality of the corresponding synthetic reconstructed images.Accurate correction for the splicing dislocation of sub-holograms is achieved and high-quality reconstructed images without nonparaxial aberration are obtained.