Chinese Optics Letters, 2008, 6 (2): 02100, Published Online: Mar. 5, 2008
An effective method for reducing speckle noise in digital holography Download: 799次
数字全息 散斑噪声 多幅全息图 090.0090 Holography 030.0030 Coherence and statistical optics 070.0070 Fourier optics and signal processing 120.0120 Instrumentation, measurement, and metrology
Abstract
An effective method for reducing the speckle noise in digital holography is proposed in this paper. Different from the methods based on classical filtering technique, it utilizes the multiple holograms which are generated by rotating the illuminating light continuously. The intensity images reconstructed by a series of holograms generated by rotating the illuminating light possess different speckle patterns. Hence by properly averaging the reconstructed intensity fields, the speckle noises can be reduced greatly. Experimental results show that the proposed method is simple and effective to reduce speckle noise in digital holography.
Xin Kang. An effective method for reducing speckle noise in digital holography[J]. Chinese Optics Letters, 2008, 6(2): 02100.