In this paper, the method of recognition and superposition of sub-pixel shifting in digital holograms is investigated. A group of non-scanning holograms is recognized and superposed by using sub-pixel shifting algorithm. Further, spatio-temporal scanning holograms with sub-pixel displacement are recognized and superposed to further improve imaging resolution by combining spatio-temporal scanning digital holography with sub-pixel shifting algorithm. The experimental results verify the feasibility of improving resolution with sub-pixel displacement.
Resolution characteristics in scanning digital holography with sub-pixel shifting reconstruction imaging
Holography, Diffractive Optics, and Applications VIII ; 2018 ; Beijing,China
Proc. SPIE ; 10818
2018-11-02
Conference paper
Electronic Resource
English
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