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Published on: January 28, 2019
Holographic display method to suppress speckle noise based on effective utilization of two spatial light modulators
Abstract:
In this paper, a holographic display method to suppress the speckle noise is proposed. Firstly, the effective viewing area (EVA) of the reconstructed image is calculated. The object points are separated into groups by pixel separation. Then, the sub-computer-generated holograms (sub-CGHs) which can be reconstructed in the EVA are generated by calculating the principal fringe patterns. Finally, by loading the sub-CGHs on the two spatial light modulators respectively and using spatiotemporal multiplexing method, the reconstructed image can be displayed with lower speckle noise. Moreover, the calculation speed of the hologram is improved. Experimental results demonstrate the feasibility of the proposed method.
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