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Fast reconstruction of multiple off-axis holograms based on a combination of complex encoding and digital spatial multiplexing
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作者 沙贝 鲁玉洁 +2 位作者 谢一言 岳庆炀 国承山 《Chinese Optics Letters》 SCIE EI CAS CSCD 2016年第6期36-40,共5页
An algorithm is proposed for the fast reconstruction of off-axis digital holograms based on a combination of complex encoding(CE) and spatial multiplexing(SM). In this algorithm, every two off-axis holograms recor... An algorithm is proposed for the fast reconstruction of off-axis digital holograms based on a combination of complex encoding(CE) and spatial multiplexing(SM). In this algorithm, every two off-axis holograms recorded in sequence are first assembled into a CE hologram using the CE method, and then four of the CE holograms are again encoded into one complex spatial multiplexing(CSM) hologram based on the SM algorithm. It is demonstrated that the eight holograms encoded into such one CSM hologram can be quickly reconstructed by performing a two-dimensional(2D) Fourier transform(FT) on the CSM hologram. Using this method, the eight 2D FTs required for the reconstruction of the eight holograms in the conventional spatial filtering methods can be simplified to a process with only one 2D FT, which can largely improve the computation efficiency with the 展开更多
关键词 multiplexing encoding reconstructed simplified performing quickly assembled encoded filtering consuming
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