4.6 Article

Snapshot multispectral polarization imaging using a photonic crystal filter array

期刊

OPTICS EXPRESS
卷 26, 期 12, 页码 15948-15961

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OPTICAL SOC AMER
DOI: 10.1364/OE.26.015948

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  1. JSPS KAKENHI [18K11368]
  2. Grants-in-Aid for Scientific Research [18K11368] Funding Source: KAKEN

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A new filter array and a demosaicking method for snapshot multispectral polarization imaging are proposed in this paper. The proposed filter array is a thin-film wavy multilayer structure regarded as a photonic crystal that can be fabricated using the autocloning method. The multispectral polarization filter array is developed by altering the wave structure of the photonic crystal at each pixel. In addition, we propose a demosaicking method for multispectral polarization images by considering snapshot imaging as a linear model. In the experiments, we evaluated the recovered spectrum error in some color charts and showed various demosaicked images such as multispectral polarization images, specific-band degree of linear polarization images, polarized RGB images, and non-polarized RGB images. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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