Abstract: At first，the traditional method of simulated anneal is improved.Secondly，a zero-order term is effectively eliminated for hologram of pure phase by using independent component analysis，which receives a twin-image and phase unwrapping of a twin-image.Finally，the phase retrieval is achieved for phase unwrapping of a twin-image by using improved method of simulated anneal.Experiments show that this method can better resolve problem of a zero-order term and retrieval of phase in the process of the reconstruction of digital holography.

摘要： 首先对传统的模拟退火算法进行改进，然后由独立变量分析方法对纯相位复波的数字全息图进行零级项消除，得到其共轭项，获取未解压的共轭复波相位，最后利用改进的模拟退火算法对未解压的共轭复波相位进行了相位恢复。结果表明，利用以上方法能较好的解决数字全息重构中的零级项和相位恢复问题。