Enhancement on the generation of sampled phase-only holograms

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Original languageEnglish
Article number60901
Journal / PublicationChinese Optics Letters
Volume13
Issue number6
Online published25 May 2015
Publication statusPublished - 10 Jun 2015

Abstract

Past research has demonstrated that if the intensity image of an object is uniformly down-sampled and converted into a Fresnel hologram, the phase component alone will be sufficient to reconstruct the source image. However, due to down-sampling, the edge and line patterns are degraded heavily. In this Letter, we propose an enhancement on the parent method by incorporating an adaptive down-sampling lattice. A hologram generated with our proposed method, which is referred to as the edge-enhanced sampled phase-only hologram, preserves favorable visual quality on both the shaded regions as well as the edge patterns of the object image.