相移数字全息子图拼接研究

 将全息图拼接技术应用到相移数字全息术中，改善再现像的质量。用全息图强度相关原理进行全息图拼接，再通过标准四步算法对拼接后的全息图进行运算，恢复原始物光。作为对比，对没有拼接的全息图进行了同样的操作。计算机模拟实验证明该全息图拼接技术可明显提高再现像的质量。同时，通过对光学实验获得的全息图进行零填充和拼接对比研究证明，前者只能提高系统成像的细节显示能力，后者能够提高再现像的分辨率和视场大小。

Stitching technology in phase-shifting digital holography

Hologram stitching technology was used in phase-shifting interferometry to improve the quality of reconstructed image.By using the principle of correlation,the sub-interferograms captured by CCD were stitched into an integrated hologram.And the stitched hologram was reconstructed by standard four-step phase shifting interferometry algorithm to restore the object light.For the sake of comparison,the same reconstruction operation was conducted on the original sub-interferograms without stitching.Computer simu...