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Article Dans Une Revue Optics Letters Année : 2017

Reduction of speckle noise in holographic images using spatial jittering in numerical reconstructions

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Résumé

This Letter presents an easy, fast, and efficient single-shot method to reduce speckle noise in digital Fresnel holography. In this method, several images from a single hologram are reconstructed by introducing spatial displacements in the Fresnel kernel. Spatial jitters produce images with different speckle positions. Averaging the set of numerically produced images leads to a strong reduction of speckle noise in both amplitude and phase difference images. The experimental results show the suitability of the proposed approach and confirm its applicability to digital holographic interferometry.
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Dates et versions

hal-02403017 , version 1 (10-12-2019)

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Mohamed Haouat, Jorge Garcia-Sucerquia, Abdelhamid Kellou, Pascal Picart. Reduction of speckle noise in holographic images using spatial jittering in numerical reconstructions. Optics Letters, 2017, 42 (6), pp.1047. ⟨10.1364/OL.42.001047⟩. ⟨hal-02403017⟩
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