Based on recording theory of digital off-axis hologram and digital image processing techniques,an effective method to eliminate zero-order image in digital off-axis holography is proposed.With this method,only single hologram is required and pre-processed in spatial domain.Comparing with the existing methods,this method has a fast and simple algorithm.It is efficient to eliminate the zero-order image.The proposed method is verified by experimental results.
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朱余良,周皓,顾济华.离轴数字全息零级像的空域滤波预处理消除法[J].激光与红外,2010,40(7):795~798 ZHU Yu-liang, ZHOU Hao, GU Ji-hua. A pre-process method based on spatial filter for zero-order image elimination in digital off-axis holography[J]. LASER & INFRARED,2010,40(7):795~798