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Synthesizing Computer Generated Hologram by Fast Decimation In Frequency Direct Binary Search Algorithm

Zhou Jihua, Ruan Yu, Zhai Jinhui (Department of Optoelectronic Engineering,Huazhong University of Science and Technology,Wuhan,430074)  
A new DBS algorithm to synthesize binary computer generated hologram is given in the paper.The model of this algorithm is derived.The results from the computer emulation experiments indicate that the computation complexity using FDIF DBS algorithm is lower than using using usual DBS algorithm.In order to improve the reconstruction image of the hologram,some methods are discussed and the experimental results are given.The results prove that these methods can improve the reconstruction image of the CGH synthesized by FDIF DBS algorithm to some extent.
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