P‐3.23: Multiple Regional‐Iteration Algorithm for Holographic Projection with Suppressed Speckle Noise

The spatial resolution of the holographic projection image is limited by the size of the spatial light modulator (SLM). Speckles noise always appear in the reconstructed image, which degrades the image quality. In this paper, a multiple regional iteration algorithm is proposed based on the GS algori...

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Vydáno v:SID International Symposium Digest of technical papers Ročník 53; číslo S1; s. 744 - 746
Hlavní autoři: Guo, Min, Cai, Jiahao, Feng, Qibin, Wang, Zi, Lv, Guoqiang
Médium: Journal Article
Jazyk:angličtina
Vydáno: Campbell Wiley Subscription Services, Inc 01.10.2022
Témata:
Diffractive optics
Holographic projection
Holography
Image degradation
Image quality
Image reconstruction
Iterative algorithms
Spatial light modulators
Spatial resolution
Speckle suppression
ISSN:0097-966X, 2168-0159
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Shrnutí:The spatial resolution of the holographic projection image is limited by the size of the spatial light modulator (SLM). Speckles noise always appear in the reconstructed image, which degrades the image quality. In this paper, a multiple regional iteration algorithm is proposed based on the GS algorithm to generate the hologram for holographic projection. More non‐sampling points can be controlled effectively. The spatial resolution of the reconstruction image can reach 8 times of the traditional one, and the speckle noise is suppressed at the same time. Compared with the traditional GS algorithm, the simulation results show that the root mean square error of the proposed algorithm reduces from 0.695 to 0.184, and the structural similarity index measure increases from 0.214 to 0.893.
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ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.16079