相移数字全息技术中相移误差对全息图数字重现的影响  

Influence of phase-shifting error on quality of reconstructed image in phase-shifting digital holography

作　　者：王应宗[1] 甄艳坤[1] 张红军[1] 霍义萍[1] 杜艳丽[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2004年第1期41-43,共3页Journal of Shaanxi Normal University：Natural Science Edition

摘　　要：在相移数字全息技术中,分别采用二步算法、三步算法、四步算法及全息数字相减技术,实现了对相移数字全息图数字的重现.通过对比由于参考光束的相移误差在不同情况下重现像的质量,表明二步算法比已有的算法能得到质量更好的重现像.In phase-shifting digital holography, with two-step, three-step and four-step phase-shifting recording methods here and use a method with digital subtraction of hologram to implement reconstruction of (phase-shifting) digital hologram. The influence of phase-shifting error on the quality of the reconstructed image in digital holography is compared in different methods. The (results) showed that the quality of the reconstructed image with the two-step phase-shifting method is better than the others.

关 键 词：相移误差 全息图 数字重现 全息数字相减 二步算法 

分 类 号：O438.1[机械工程—光学工程] TP391.41[理学—光学]