We investigate the influence of phase-shifting error on the quality of the reconstructed image in digital holography and propose a method of error elimination for a perfect image. In this method the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase-shifting value. The feasibility of this method is demonstrated by computer simulation.
© 2002 Optical Society of America
(090.1760) Holography : Computer holography
(100.2000) Image processing : Digital image processing
(100.3010) Image processing : Image reconstruction techniques
(100.5070) Image processing : Phase retrieval
Cheng-Shan Guo, Li Zhang, Hui-Tian Wang, Jun Liao, and Y. Y. Zhu, "Phase-shifting error and its elimination in phase-shifting digital holography," Opt. Lett. 27, 1687-1689 (2002)