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Ghost images reconstructed from fractional-order moments with thermal light |
De-Zhong Cao(曹德忠)1, Qing-Chen Li(李清晨)1, Xu-Cai Zhuang(庄绪财)1, Cheng Ren(任承)1, Su-Heng Zhang(张素恒)2, Xin-Bing Song(宋新兵)3 |
1 Department of Physics, Yantai University, Yantai 264005, China;
2 College of Physics Science and Technology, Hebei University, Baoding 071002, China;
3 Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel |
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Abstract We present the joint probability density function (PDF) between the bucket signals and reference signals in thermal light ghost imaging, by regarding these signals as stochastic variables. The joint PDF allows us to examine the fractional-order moments of the bucket and the reference signals, in which the correlation orders are fractional numbers, other than positive integers in previous studies. The experimental results show that various images can be reconstructed from fractional-order moments. Negative (positive) ghost images are obtained with negative (positive) orders of the bucket signals. The visibility and peak signal-to-noise ratios of the diverse ghost images depend greatly on the fractional orders.
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Received: 29 July 2018
Revised: 30 September 2018
Accepted manuscript online:
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PACS:
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34.80.Pa
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(Coherence and correlation)
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42.30.-d
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(Imaging and optical processing)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11674273, 11304016, and 11204062). |
Corresponding Authors:
De-Zhong Cao, Xin-Bing Song
E-mail: dzcao@ytu.edu.cn;xin-bing.song@weizmann.ac.il
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Cite this article:
De-Zhong Cao(曹德忠), Qing-Chen Li(李清晨), Xu-Cai Zhuang(庄绪财), Cheng Ren(任承), Su-Heng Zhang(张素恒), Xin-Bing Song(宋新兵) Ghost images reconstructed from fractional-order moments with thermal light 2018 Chin. Phys. B 27 123401
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