title: Reduction of speckle noise in holographic images using spatial jittering in numerical reconstructions.
abstract: 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.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Haouat
authors.forename: Jorge
authors.initials: J
authors.lastname: Garcia-Sucerquia
authors.forename: Abdelhamid
authors.initials: A
authors.lastname: Kellou
authors.forename: Pascal
authors.initials: P
authors.lastname: Picart