Imaging quality enhancement in binary ghost imaging using the Otsu algorithm

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Imaging quality enhancement in binary ghost imaging using the Otsu algorithm

Zou, Xuanpengfan; Tan, Wei; Huang, Xianwei; Nan, Suqin; Bai, Yanfeng; Fu, Xiquan

Journal of optics (2010), 09/2020, Volume: 22, Issue: 9

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A decline in imaging quality will occur when the sampling data of ghost imaging is recorded by binarization. Based on the Otsu binarization, a method named Otsu binary ghost imaging (OBGI) is proposed to enhance imaging quality. Both theoretical and experimental results show that, with an appropriate threshold value, OBGI can enhance imaging quality significantly when compared with ordinary binary ghost imaging, even providing better imaging quality than that of traditional ghost imaging. It is also shown the method is more applicable under the conditions of low-light level and with a complicated object.

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