Chinese Optics Letters, 2015, 13 (6): 060901, Published Online: Sep. 14, 2018   

Enhancement on the generation of sampled phase-only holograms Download: 858次

Author Affiliations
1 Department of Electronic Engineering, City University of Hong Kong, Hong Kong, Special Administrative Region (SAR), China
2 Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
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.

P. W. M. Tsang, Y. T. Chow, T.-C. Poon. Enhancement on the generation of sampled phase-only holograms[J]. Chinese Optics Letters, 2015, 13(6): 060901.

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